WO2003100910A1 - High speed electrical connector - Google Patents

High speed electrical connector Download PDF

Info

Publication number
WO2003100910A1
WO2003100910A1 PCT/US2003/016089 US0316089W WO03100910A1 WO 2003100910 A1 WO2003100910 A1 WO 2003100910A1 US 0316089 W US0316089 W US 0316089W WO 03100910 A1 WO03100910 A1 WO 03100910A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact
signal
ground
row
contacts
Prior art date
Application number
PCT/US2003/016089
Other languages
French (fr)
Inventor
Robert Neil Whiteman, Jr.
Wayne Samuel Davis
Original Assignee
Tyco Electronics Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tyco Electronics Corporation filed Critical Tyco Electronics Corporation
Priority to EP03755421A priority Critical patent/EP1508184B1/en
Priority to DE60316145T priority patent/DE60316145T2/en
Priority to AU2003273140A priority patent/AU2003273140A1/en
Publication of WO2003100910A1 publication Critical patent/WO2003100910A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • H01R13/6581—Shield structure
    • H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
    • H01R13/6586—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules
    • H01R13/6587—Shielding material individually surrounding or interposed between mutually spaced contacts for separating multiple connector modules for mounting on PCBs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461—Means for preventing cross-talk
    • H01R13/6471—Means for preventing cross-talk by special arrangement of ground and signal conductors, e.g. GSGS [Ground-Signal-Ground-Signal]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6473—Impedance matching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/943—Electrical connectors including provision for pressing contact into pcb hole

Definitions

  • the invention relates to an electrical connector for transmitting high-speed electrical signals in differential pair applications.
  • each trace of the circuit board is attached to a unique signal pin of the connector.
  • signal pins of separate different differential pairs may become electromagnetically coupled to one another.
  • the signal pins exhibit cross-talk.
  • Crosstalk increases the interference, noise, and jitter within the circuit board, connector and system.
  • Increasing the distance between signal pins of separate differential pairs typically decreases the effects of interference, noise and jitter.
  • Increasing the distance between differential pairs typically requires a larger connector.
  • electrical and electronic applications today require a large number of differential pairs to be packaged in a small space. Many systems require as small a connector as possible to make efficient use of internal space.
  • a problem to be solved is how to provide an electrical connector having a high number of signal contacts in a dense arrangement, while minimizing electrical cross-talk between the signal contacts.
  • the invention is an electrical connector comprising a connector housing that holds signal contacts and ground contacts organized into contact groups.
  • Each contact group includes at least two of said signal contacts and one of said ground contacts.
  • the contact groups are aligned in parallel rows, and the contact groups in each said row are staggered with respect to the contact groups in an adjacent said row.
  • Figure 1 is an isometric view of a header connector according to an embodiment of the present invention.
  • Figure 2 is an isometric view of the header connector from a different angle
  • Figure 3 is a top plan view showing a mating face of the header connector
  • Figure 4 is a bottom view showing a mounting face of the header connector
  • Figure 5 is an isometric view of a ground contact used in the header connector
  • Figure 6 is an isometric view of a receptacle connector according to an embodiment of the present invention.
  • Figure 7 is an isometric view showing one side of a first contact module used in the receptacle connector
  • Figure 8 is an isometric view showing one side of a second contact module used in the receptacle connector
  • Figure 9 shows an opposite side of the first contact module
  • Figure 10 shows an opposite side of the second contact module
  • Figure 11 is an isometric view of a signal contact used in the header connector
  • Figure 12 is an isometric view of a header connector according to an alternative embodiment of the present invention.
  • Figure 13 is an isometric view of a ground contact used in the header connector of Figure 12;
  • Figure 14 is an isometric view showing a portion of a mating face of the header connector of Figure 12;
  • Figure 15 is an isometric view of a portion of a receptacle connector that mates with the header connector of Figure 12;
  • Figure 16 is a plan view of a mating face of the receptacle connector
  • Figure 17 is an isometric view showing one side of a first contact module which is housed in the receptacle connector of Figure 15;
  • Figure 18 is an isometric view showing one side of a second contact module which is housed in the receptacle connector of Figure 15;
  • Figure 19 is an isometric view of the first contact module from the opposite side as that shown in Figure 17;
  • Figure 20 is an isometric view of the second contact module from the opposite side as that shown in Figure 18;
  • Figure 21 is an isometric view of a ground shield that is used with the first contact module shown in Figure 17;
  • Figure 22 is an isometric view of a ground shield that is used with the second contact module shown in Figure 18.
  • a header connector 10 comprises a dielectric housing 12 including a main wall 14, an upper shroud 15 and a lower shroud 16.
  • the header connector 10 further comprises a plurality of signal contacts 20 and ground contacts 30 that extend through and are secured in the main wall 14.
  • the header connector 10 includes a mating face 17 that interfaces with a mating face 57 of a corresponding receptacle connector 50, shown in Figure 6.
  • the header connector 10 also includes a board-mounting face 18 that interfaces with a circuit board (not shown) on which the header connector 10 is mounted.
  • the header connector 10 mates with the receptacle connector 50 such that the circuit board on which the header connector 10 mounts is oriented perpendicular to the circuit board, backplane, or other such structure, on which the receptacle connector 50 is mounted or otherwise positioned.
  • FIG 11 illustrates an exemplary signal contact 20, which includes a tail or lead 22 with a compliant section 24 that is configured for press-fit insertion into a plated signal through-hole in the circuit board (not shown.).
  • Each of the signal contacts 20 also has a post 26 that is matable with a corresponding contact in the receptacle connector 50. The posts 26 are insertable into respective holes 58 in the mating face 57 of the receptacle connector 50 ( Figure 6).
  • Figure 5 illustrates an exemplary ground contact 30, which includes a tail or lead 32 with a compliant section 34 that is configured for press-fit insertion into a plated ground through-hole in the circuit board, and a blade 36 that is engagable with a corresponding ground shield in the receptacle connector 50.
  • the tail 32 and compliant section 34 are oriented at an angle to the plane of the blade 36 by a bend portion 37.
  • the bend portion 37 is provided along one side edge of the blade 36, such that the tail 32 is offset from a central longitudinal axis 35 of the blade 36.
  • the blades 36 are insertable into respective slots 59 in the mating face of the receptacle connector 50 ( Figure 6). For the sake of simplicity, only one ground contact 30 is shown in Figure 5.
  • ground contacts 30 in adjacent rows are not merely inverted. Rather, ground contacts 30 in one row 41 may be formed as mirror images of the ground contacts 30 in an adjacent row 41. Preferably, two sets of ground contacts 30 are formed such that one set is a mirror image of the other. However, all of the ground contacts 30 share the same basic features.
  • the signal and ground contacts 20 and 30 are arranged in an array in the header connector 10.
  • the array includes groups with each group comprising two signal contacts 20 and one ground contact 30.
  • the two signal contacts 20 in each group are associated as a signal contact pair 28, which serves to transmit a pair of differential electrical signals through the header connector 10.
  • One ground contact 30 is associated with each signal contact pair 28. More particularly, along the mating face 17 as shown in Figure 3, the signal contact posts 26 are arranged in parallel rows 41 which are separated by rows 42 of the ground contact blades 36. That is, adjacent rows of signal contact pairs 28 are separated by an intervening row of ground contact blades 36.
  • the signal contact tails 22 are arranged in parallel rows 43 that also include the ground contact tails 32 due to the ground contact tails 32 being offset from the blades 36 by the bend portions 37 of the ground contacts 30.
  • the ground contact tails 32 intervene between the pairs of signal contact tails 22 within each row 43.
  • the signal contact pairs 28 in the array are staggered from row 43 to row 43. More particularly, the pattern of signal and ground contacts 20 and 30, respectively, in any one row along the board-mounting face 18 shown in Figure 4 is reversed in the next adjacent row. That is, as shown in Figure 4, for example, the orientation of one row 43 is opposite that of the adjacent row.
  • the rows may be termed odd and even according to their sequence from one side of the header connector 10. All of the odd rows have one pattern of signal and ground contacts 20 and 30, respectively, and all of the even rows have another pattern that is reversed from that in the odd rows. For example, as shown in Figures 3 and 4, the pattern of row A is reversed from the pattern of row B. Thus, the signal contact pairs 28 in row A are staggered relative to the signal contact pairs 28 in row B. Along the mating face 17 shown in Figure 3, the pairs of signal contact posts 26 in any one row are staggered with respect to the pairs of signal contact posts 26 in the next adjacent row. This staggered array of signal and ground contacts 20 and 30 serves to isolate each signal contact pair 28 from neighboring signal contact pairs 28, thereby reducing electrical cross-talk and improving electrical performance.
  • FIG. 6 illustrates the receptacle connector 50, which comprises a dielectric housing 52 having a main wall 54, an upper shroud 55 and a lower shroud 56.
  • the receptacle connector 50 holds a plurality of contact modules 60a, 60b, shown in Figures 7-10.
  • Each contact module 60a and 60b includes a dielectric molding 62a, 62b that holds signal contacts and a ground contact.
  • the contact modules 60a and 60b are similar to each other, but each has a respective pattern of signal contacts corresponding to the pattern of signal contacts 20 in a respective one of the rows in the header connector 10.
  • each of the modules 60a, 60b has a plurality of signal contacts 70a, 70b each having a receptacle section 72a, 72b at a mating end and a compliant tail section 74a, 74b at a board-mounting end (only two representative compliant sections are shown in the Figures).
  • the receptacle section 72a, 72b comprises dual contact beams 76a, 76b that engage a corresponding signal contact post 26 that is inserted therebetween.
  • each of the modules 60a, 60b includes a ground shield 80a, 80b with ground contact springs 82a, 82b that are engagable with corresponding ground contact blades 36 of the header connector.
  • the ground shields 80a, 80b include compliant tail sections 84a, 84b configured to engage ground through-holes in a circuit board (not shown).
  • Each of the modules 60a, 60b has a beam 64a, 64b that is receivable in a track in the upper shroud, a projection 65a, 65b that overlies a support on the upper shroud, and a lug 66a, 66b that is receivable in a groove in the lower shroud.
  • the modules 60a, 60b have lower beams 68a, 68b, respectively, that are receivable in a track on the lower shroud.
  • the beams 64a, 64b, 68a, 68b, the projections 65a, 65b and the lugs 66a, 66b serve to stabilize and align the module 60a, 60b in the receptacle housing 52.
  • Each of the ground shields 80a, 80b has a first upper barb 86a, 86b, a second upper barb 87a, 87b, and a lower barb 88a, 88b, all of which dig into the dielectric housing 52 as the modules 60a, 60b are inserted into the dielectric housing 52 to secure the modules 60a, 60b in the dielectric housing 52.
  • Each ground shield 80a, 80b also has a resilient latch tab 89a, 89b that extends from a folded portion 90a, 90b. The latch tabs 89a, 89b engage a corresponding ledge of the dielectric housing 52 to prevent the modules 60a, 60b from backing out of the dielectric housing 52.
  • FIG 12 is an isometric view of a header connector 100 according to an alternative embodiment of the present invention.
  • the header connector 100 includes a dielectric housing 112 having a main wall 114, an upper shroud 115 and a lower shroud 116.
  • the header connector 100 further includes a plurality of signal contacts 20 and ground contacts 130 that extend through and are secured in the main wall 114.
  • the header connector 100 also includes a mating face 117 that interfaces with a mating face 157 of a corresponding receptacle connector 150 (shown in Figure 15).
  • the header connector 100 includes a board- mating face 118 that interfaces with a circuit board (not shown) on which the header connector 100 is mounted.
  • the header connector 100 mates with the receptacle connector 150 such that the circuit board to which the header connector 100 mounts is oriented perpendicular to the circuit board, backplane, or other such structure on which the receptacle connector 150 is mounted or otherwise positioned.
  • the signal contacts 20 used with the header connector 100 are the same as those used with the header connector 10.
  • the posts 26 of the signal contacts 20, which are matable with a corresponding contact in the receptacle connector 150, are insertable into respective holes 158 in the mating face 157 of the receptacle connector 150 (as shown in Figure 15).
  • FIG. 13 is an isometric view of a ground contact 130 according to an alternative embodiment of the present invention. Similar to the ground contacts 30, two sets of ground contacts 130 are formed so that one set is a mirror image of the other set. The ground contacts 130 are similar to the ground contacts 30, with some variations.
  • Each ground contact 130 includes a tail 132 formed integrally with a compliant section 134, which in turn is formed integrally with a bend portion 137.
  • the bend portion 137 is formed integrally with a blade 136.
  • the tail 132 is oriented at an angle to the plane of the blade 136.
  • the bend portion 137 is provided along one side edge of the blade 136, such that the tail 132 is offset from a central longitudinal axis 135 of the blade 136. As shown in Figure 13, the plane of the blade 136 may be perpendicular to the plane of the tail 132 and complaint section 134.
  • the blade 136 which is also formed integrally with a housing retained portion 140, includes a leading edge 142 and a rear edge 143.
  • the blade 136 is recessed from the housing retained portion 140 such that the leading edge 142 is offset from a leading edge 145 of the housing retained portion 140. Because the blade 136 is recessed from the housing retained portion 140, the main wall retained portion 140 includes an exposed upper edge 138. Due to the recessed nature of the blade 136 from the leading edge of the housing retained portion 140, the blade 136 is not as wide as the blade 36 of the ground contact 30. Additionally, as shown in Figure 12, the ground contacts 130 may include a notched upper portion 147 to allow for clearance between internal structures when mated with the receptacle connector 150.
  • the signal and ground contacts 20 and 130 are arranged in an array in the header connector 100.
  • the array includes a plurality of associated groups, each comprising two signal contacts 20 and one ground contact 130.
  • the two signal contacts 20 in each associated group are associated as signal contact pairs 28 to transmit a pair of differential electrical signals through the header connector 100.
  • One ground contact 130 within an associated group is associated with each signal contact pair 28.
  • FIG 14 is an isometric view of the mating face 117 of the header connector 100 according to an alternative embodiment of the present invention.
  • the signal contact pairs 28 are staggered relative from row to row with respect to one another. That is, the signal contact pairs 28 in row A are staggered relative to the signal contact pairs 28 is row B.
  • Each signal contact pair 28 in one row, for example, row A is staggered relative to a signal contact pair 28 in an adjacent row, for example, row B.
  • each signal contact pair 28 in one row, for example, row A is shielded from a signal contact pair in an adjacent row, for example, row B, by a blade 136 of a ground contact 130.
  • an intervening row of blades 136 of ground contacts 130 is positioned between two rows of signal contact pairs 28, such as rows A and B of signal contact pairs 28. Further, the ground contact tails 132 intervene between signal contact tails 122 of signal contact pairs 28 within each row. Thus, each signal contact pair 28 is shielded from other signal contact pairs 28 by ground contacts 30.
  • a comparison of blades 36 and 136 shows that the recessed nature of the blade 136 from the housing retained portion 140 exhibits a more pronounced staggered effect between ground contacts 136. Further, the recessed nature of the blade 136 requires less material for the blades 136, and also allows for increased space within the header connector 100.
  • FIG. 15 is an isometric view of a portion of a receptacle connector 150 according to an alternative embodiment of the present invention.
  • the receptacle connector 150 is similar to the receptacle connector 50 (shown with respect to Figure 6).
  • the receptacle connector 150 includes a dielectric housing 152 having a main wall 154, an upper shroud 155 and a lower shroud 156.
  • the receptacle connector 150 also includes the mating face 157 having a plurality of holes 158 and slots 159.
  • the holes 158 receive and retain posts 26 of signal contacts 20, while the slots receive and retain blades 136 of ground contacts 130.
  • Figure 16 is a plan view of the mating face 157 of the receptacle connector 150 according to an alternative embodiment of the present invention.
  • the mating face 157 of the receptacle connector 150 is configured to mate with the mating face 117 of the header connector 100.
  • the staggered nature of the associated groups of signal contact pairs 28 and ground contacts 130 with respect to one another shields signal contact pairs 28 in one row from signal contact pairs 28 in an adjacent row.
  • Figure 17 is an isometric view showing one side of a contact module 160a, which is configured to be housed in the receptacle connector 150, according to an alternative embodiment of the present invention.
  • Figure 18 is an isometric view showing one side of a contact module 160b, which is configured to be housed in the receptacle connector 150, according to an alternative embodiment of the present invention.
  • the contact modules 160a and 160b are similar to each other, but each has a respective pattern of signal contacts corresponding to the pattern of signal contacts 20 in a respective one of the rows in the header connector 100.
  • the receptacle connector 150 holds a plurality of contact modules 160a and 160b.
  • Each contact module 160a, 160b includes a dielectric molding 162a, 162b that holds signal contacts and a ground shield.
  • the contact modules 160a, 160b may be assembled by inserting signal contacts 170a, 170b into the dielectric molding 162a, 162b, respectively, and mounting ground shields 180a, 180b onto the opposite sides of the dielectric moldings 162a, 162b, respectively.
  • the ground shields 180a, 180b are mounted onto the dielectric moldings 162a, 162b, respectively, such that an interference fit exists between each ground shield 180a, 180b and its corresponding dielectric molding 162, 162b.
  • the ground shields 180a, 180b may be snapably secured into the dielectric moldings 162a, 162b, respectively.
  • FIG. 19 is an isometric view of the contact module 160a from the opposite side of that shown in Figure 17 according to an alternative embodiment of the present invention.
  • Figure 20 is an isometric view of the contact module 160b from the opposite side of that shown in Figure 17 according to an alternative embodiment of the present invention.
  • Each of the contact modules 160a, 160b has a plurality of signal contacts 170a, 170b.
  • Each signal contact 170a, 170b has a receptacle section 172a, 172b at a mating end and a compliant tail section 174a, 174b at a board-mating end.
  • the receptacle sections 172a, 172b include dual contact beams 176a, 176b, respectively, each of which engages a corresponding signal contact post 26 that is inserted therebetween.
  • FIG 21 is an isometric view of a ground shield 180a configured for the contact module 160a according to an alternative embodiment of the present invention.
  • Figure 22 is an isometric view of a ground shield 180b configured for the contact 160b module according to an alternative embodiment of the present invention.
  • each of the contact modules 160a, 160b has a ground shield 180a, 180b, respectively.
  • Each ground shield 180a, 180b has ground contact springs 182a, 182b, respectively, which are engagable with corresponding ground contact blades 136 of the header connector 100.
  • each ground shield 180a, 180b has a compliant tail section 184a, 184b, respectively, for engaging ground through-holes in a circuit board (not shown).
  • Each ground shield 180a, 180b also has a first upper barb 186a, 186b, a second upper bard 187a, 187b, and a lower barb 188a, 188b, all of which dig into the dielectric housing 152 as the contact module 160a, 160b is inserted into the receptacle housing 150 to secure the contact module 160a, 160b in the receptacle housing 150. Additionally, each ground shield 180a, 180b includes a resilient latch tab 189a, 189b, respectively, which extends from a folded portion 190a, 190b.
  • the latch tabs 189a, 189b engage a corresponding ledge of the receptacle housing 150 to prevent the contact modules 160a, 160b from backing out of the receptacle housing 150.
  • the ' ground shields 180a, 180b include protruding members 185a, 187a and 185b, 187b, respectively, which engage corresponding features within the dielectric moldings 162a, 162b, respectively, so that the ground shields 180a, 180b may be secured within the dielectric moldings.
  • Each of the contact modules 160a, 160b have upper beams 164a, 164b and lower beams 168a, 168b that are receivable in corresponding tracks in the upper and lower shrouds 155 and 156, a projection 165a, 165b that may cooperate with a support on the upper shroud 155, and a lug 166a, 166b that is receivable in a groove in the lower shroud 156.
  • the beams 164a, 164b, the projections 165a, 165b and the lugs 166a, 166b serve to stabilize and align the contact modules 160a, 160b in the receptacle housing 150.
  • Embodiments of the present invention are not limited to the configurations shown.
  • the header connector may include more or less rows of signal contact pairs (and associated ground compliant sections), and the receptacle connector may include a corresponding number of contact modules spaced apart according to the orientation of the rows within the header connector.
  • the ground contacts may be configured so that the plane of the blade is not pe ⁇ endicular to the plane of the compliant section of the ground contact.
  • the ground contact may include a semi-cylindrical blade that partially encircles a signal contact pair.
  • the ground contacts may also include walls that extend perpendicularly from the edges of the blade to complete enclose a signal contact pair.
  • the invention provides an electrical connector that exhibits improved signal characteristics in terms of impedance, interference, noise and jitter. Because differential pairs are shielded from one another both physically and electrically (by ground contacts), the effects of impedance, interference, noise and jitter are diminished.
  • the electrical connector may accommodate a high number of signal contacts, while minimizing interference, noise and jitter among the signal contacts, due to the staggered nature of the rows of signal contact pairs and ground contacts within the electrical connector.

Abstract

An electrical connector (10) comprises a connector housing (12) holding signal contacts (28) and ground contacts (36) organized into contact groups. Each contact group includes at least two of said signal contacts and one of said ground contacts. The contact groups are aligned in parallel rows (41), and the contact groups in each said row are staggered with respect to the contact groups in an adjacent said row.

Description

HIGH SPEED ELECTRICAL CONNECTOR
[01] The invention relates to an electrical connector for transmitting high-speed electrical signals in differential pair applications.
[02] Many board-to-board connector systems have been proposed for interconnecting circuit boards that include traces arranged to convey differential pairs of signals. The differential pairs include complimentary signals such that if one signal in a differential pair switches from 0 V to 1 V, the other signal in the differential pair switches from 1 V to 0 V. Each connector exhibits a characteristic impedance.
[03] In the past, fluctuations in impedance exhibited by a connector did not degrade signal performance by an appreciable amount when signal/data transmission rates were relatively low (e.g., less than 1 GHz). However, newer systems have been proposed to transmit data signals at speeds approaching and exceeding 2 GHz. In these high-speed data transmission systems, even small impedance fluctuations may pose significant problems, such as signal loss, interference, noise, jitter and the like within each connector.
[04] Further, each trace of the circuit board is attached to a unique signal pin of the connector. Within the connector, signal pins of separate different differential pairs may become electromagnetically coupled to one another. When signal pins of different differential pairs become coupled with one another, the signal pins exhibit cross-talk. Crosstalk increases the interference, noise, and jitter within the circuit board, connector and system. Increasing the distance between signal pins of separate differential pairs typically decreases the effects of interference, noise and jitter. Increasing the distance between differential pairs typically requires a larger connector. However, electrical and electronic applications today require a large number of differential pairs to be packaged in a small space. Many systems require as small a connector as possible to make efficient use of internal space.
[05] Thus, a problem to be solved is how to provide an electrical connector having a high number of signal contacts in a dense arrangement, while minimizing electrical cross-talk between the signal contacts.
[06] This problem is solved by an electrical connector according to claim 1. [07] The invention is an electrical connector comprising a connector housing that holds signal contacts and ground contacts organized into contact groups. Each contact group includes at least two of said signal contacts and one of said ground contacts. The contact groups are aligned in parallel rows, and the contact groups in each said row are staggered with respect to the contact groups in an adjacent said row.
[08] The invention will now be described by way of example with reference to the accompanying drawings wherein:
[09] Figure 1 is an isometric view of a header connector according to an embodiment of the present invention;
[10] Figure 2 is an isometric view of the header connector from a different angle;
[11] Figure 3 is a top plan view showing a mating face of the header connector;
[12] Figure 4 is a bottom view showing a mounting face of the header connector;
[13] Figure 5 is an isometric view of a ground contact used in the header connector;
[14] Figure 6 is an isometric view of a receptacle connector according to an embodiment of the present invention;
[15] Figure 7 is an isometric view showing one side of a first contact module used in the receptacle connector;
[16] Figure 8 is an isometric view showing one side of a second contact module used in the receptacle connector;
[17] Figure 9 shows an opposite side of the first contact module;
[18] Figure 10 shows an opposite side of the second contact module;
[19] Figure 11 is an isometric view of a signal contact used in the header connector;
[20] Figure 12 is an isometric view of a header connector according to an alternative embodiment of the present invention.
[21] Figure 13 is an isometric view of a ground contact used in the header connector of Figure 12;
[22] Figure 14 is an isometric view showing a portion of a mating face of the header connector of Figure 12; [23] Figure 15 is an isometric view of a portion of a receptacle connector that mates with the header connector of Figure 12;
[24] Figure 16 is a plan view of a mating face of the receptacle connector;
[25] Figure 17 is an isometric view showing one side of a first contact module which is housed in the receptacle connector of Figure 15;
[26] Figure 18 is an isometric view showing one side of a second contact module which is housed in the receptacle connector of Figure 15;
[27] Figure 19 is an isometric view of the first contact module from the opposite side as that shown in Figure 17;
[28] Figure 20 is an isometric view of the second contact module from the opposite side as that shown in Figure 18;
[29] Figure 21 is an isometric view of a ground shield that is used with the first contact module shown in Figure 17; and
[30] Figure 22 is an isometric view of a ground shield that is used with the second contact module shown in Figure 18.
[31] As shown in Figs. 1-4, a header connector 10 comprises a dielectric housing 12 including a main wall 14, an upper shroud 15 and a lower shroud 16. The header connector 10 further comprises a plurality of signal contacts 20 and ground contacts 30 that extend through and are secured in the main wall 14. The header connector 10 includes a mating face 17 that interfaces with a mating face 57 of a corresponding receptacle connector 50, shown in Figure 6. The header connector 10 also includes a board-mounting face 18 that interfaces with a circuit board (not shown) on which the header connector 10 is mounted. The header connector 10 mates with the receptacle connector 50 such that the circuit board on which the header connector 10 mounts is oriented perpendicular to the circuit board, backplane, or other such structure, on which the receptacle connector 50 is mounted or otherwise positioned.
[32] Figure 11 illustrates an exemplary signal contact 20, which includes a tail or lead 22 with a compliant section 24 that is configured for press-fit insertion into a plated signal through-hole in the circuit board (not shown.). Each of the signal contacts 20 also has a post 26 that is matable with a corresponding contact in the receptacle connector 50. The posts 26 are insertable into respective holes 58 in the mating face 57 of the receptacle connector 50 (Figure 6).
[33] Figure 5 illustrates an exemplary ground contact 30, which includes a tail or lead 32 with a compliant section 34 that is configured for press-fit insertion into a plated ground through-hole in the circuit board, and a blade 36 that is engagable with a corresponding ground shield in the receptacle connector 50. The tail 32 and compliant section 34 are oriented at an angle to the plane of the blade 36 by a bend portion 37. The bend portion 37 is provided along one side edge of the blade 36, such that the tail 32 is offset from a central longitudinal axis 35 of the blade 36. The blades 36 are insertable into respective slots 59 in the mating face of the receptacle connector 50 (Figure 6). For the sake of simplicity, only one ground contact 30 is shown in Figure 5. It is to be understood, however, that analogous ground contacts are used with the header connector 10. For example, the ground contacts 30 in adjacent rows (such as rows 41 in Figure 3) are not merely inverted. Rather, ground contacts 30 in one row 41 may be formed as mirror images of the ground contacts 30 in an adjacent row 41. Preferably, two sets of ground contacts 30 are formed such that one set is a mirror image of the other. However, all of the ground contacts 30 share the same basic features.
[34] With respect to Figure 3, the signal and ground contacts 20 and 30 are arranged in an array in the header connector 10. The array includes groups with each group comprising two signal contacts 20 and one ground contact 30. The two signal contacts 20 in each group are associated as a signal contact pair 28, which serves to transmit a pair of differential electrical signals through the header connector 10. One ground contact 30 is associated with each signal contact pair 28. More particularly, along the mating face 17 as shown in Figure 3, the signal contact posts 26 are arranged in parallel rows 41 which are separated by rows 42 of the ground contact blades 36. That is, adjacent rows of signal contact pairs 28 are separated by an intervening row of ground contact blades 36.
[35] As shown in Figure 4, along the board-mounting face 18, the signal contact tails 22 are arranged in parallel rows 43 that also include the ground contact tails 32 due to the ground contact tails 32 being offset from the blades 36 by the bend portions 37 of the ground contacts 30. The ground contact tails 32 intervene between the pairs of signal contact tails 22 within each row 43. [36] The signal contact pairs 28 in the array are staggered from row 43 to row 43. More particularly, the pattern of signal and ground contacts 20 and 30, respectively, in any one row along the board-mounting face 18 shown in Figure 4 is reversed in the next adjacent row. That is, as shown in Figure 4, for example, the orientation of one row 43 is opposite that of the adjacent row. The rows may be termed odd and even according to their sequence from one side of the header connector 10. All of the odd rows have one pattern of signal and ground contacts 20 and 30, respectively, and all of the even rows have another pattern that is reversed from that in the odd rows. For example, as shown in Figures 3 and 4, the pattern of row A is reversed from the pattern of row B. Thus, the signal contact pairs 28 in row A are staggered relative to the signal contact pairs 28 in row B. Along the mating face 17 shown in Figure 3, the pairs of signal contact posts 26 in any one row are staggered with respect to the pairs of signal contact posts 26 in the next adjacent row. This staggered array of signal and ground contacts 20 and 30 serves to isolate each signal contact pair 28 from neighboring signal contact pairs 28, thereby reducing electrical cross-talk and improving electrical performance.
[37] Figure 6 illustrates the receptacle connector 50, which comprises a dielectric housing 52 having a main wall 54, an upper shroud 55 and a lower shroud 56. The receptacle connector 50 holds a plurality of contact modules 60a, 60b, shown in Figures 7-10. Each contact module 60a and 60b includes a dielectric molding 62a, 62b that holds signal contacts and a ground contact. The contact modules 60a and 60b are similar to each other, but each has a respective pattern of signal contacts corresponding to the pattern of signal contacts 20 in a respective one of the rows in the header connector 10.
[38] As shown in Figures 9 and 10, each of the modules 60a, 60b has a plurality of signal contacts 70a, 70b each having a receptacle section 72a, 72b at a mating end and a compliant tail section 74a, 74b at a board-mounting end (only two representative compliant sections are shown in the Figures). The receptacle section 72a, 72b comprises dual contact beams 76a, 76b that engage a corresponding signal contact post 26 that is inserted therebetween.
[39] As shown in Figures 7 and 8, each of the modules 60a, 60b includes a ground shield 80a, 80b with ground contact springs 82a, 82b that are engagable with corresponding ground contact blades 36 of the header connector. The ground shields 80a, 80b include compliant tail sections 84a, 84b configured to engage ground through-holes in a circuit board (not shown). [40] Each of the modules 60a, 60b has a beam 64a, 64b that is receivable in a track in the upper shroud, a projection 65a, 65b that overlies a support on the upper shroud, and a lug 66a, 66b that is receivable in a groove in the lower shroud. Additionally, the modules 60a, 60b have lower beams 68a, 68b, respectively, that are receivable in a track on the lower shroud. The beams 64a, 64b, 68a, 68b, the projections 65a, 65b and the lugs 66a, 66b serve to stabilize and align the module 60a, 60b in the receptacle housing 52.
[41] Each of the ground shields 80a, 80b has a first upper barb 86a, 86b, a second upper barb 87a, 87b, and a lower barb 88a, 88b, all of which dig into the dielectric housing 52 as the modules 60a, 60b are inserted into the dielectric housing 52 to secure the modules 60a, 60b in the dielectric housing 52. Each ground shield 80a, 80b also has a resilient latch tab 89a, 89b that extends from a folded portion 90a, 90b. The latch tabs 89a, 89b engage a corresponding ledge of the dielectric housing 52 to prevent the modules 60a, 60b from backing out of the dielectric housing 52.
[42] Figure 12 is an isometric view of a header connector 100 according to an alternative embodiment of the present invention. The header connector 100 includes a dielectric housing 112 having a main wall 114, an upper shroud 115 and a lower shroud 116. The header connector 100 further includes a plurality of signal contacts 20 and ground contacts 130 that extend through and are secured in the main wall 114. The header connector 100 also includes a mating face 117 that interfaces with a mating face 157 of a corresponding receptacle connector 150 (shown in Figure 15). Further, the header connector 100 includes a board- mating face 118 that interfaces with a circuit board (not shown) on which the header connector 100 is mounted. The header connector 100 mates with the receptacle connector 150 such that the circuit board to which the header connector 100 mounts is oriented perpendicular to the circuit board, backplane, or other such structure on which the receptacle connector 150 is mounted or otherwise positioned.
[43] The signal contacts 20 used with the header connector 100 are the same as those used with the header connector 10. The posts 26 of the signal contacts 20, which are matable with a corresponding contact in the receptacle connector 150, are insertable into respective holes 158 in the mating face 157 of the receptacle connector 150 (as shown in Figure 15).
[44] Figure 13 is an isometric view of a ground contact 130 according to an alternative embodiment of the present invention. Similar to the ground contacts 30, two sets of ground contacts 130 are formed so that one set is a mirror image of the other set. The ground contacts 130 are similar to the ground contacts 30, with some variations. Each ground contact 130 includes a tail 132 formed integrally with a compliant section 134, which in turn is formed integrally with a bend portion 137. The bend portion 137 is formed integrally with a blade 136. The tail 132 is oriented at an angle to the plane of the blade 136. The bend portion 137 is provided along one side edge of the blade 136, such that the tail 132 is offset from a central longitudinal axis 135 of the blade 136. As shown in Figure 13, the plane of the blade 136 may be perpendicular to the plane of the tail 132 and complaint section 134.
[45] The blade 136, which is also formed integrally with a housing retained portion 140, includes a leading edge 142 and a rear edge 143. The blade 136 is recessed from the housing retained portion 140 such that the leading edge 142 is offset from a leading edge 145 of the housing retained portion 140. Because the blade 136 is recessed from the housing retained portion 140, the main wall retained portion 140 includes an exposed upper edge 138. Due to the recessed nature of the blade 136 from the leading edge of the housing retained portion 140, the blade 136 is not as wide as the blade 36 of the ground contact 30. Additionally, as shown in Figure 12, the ground contacts 130 may include a notched upper portion 147 to allow for clearance between internal structures when mated with the receptacle connector 150.
[46] The signal and ground contacts 20 and 130 are arranged in an array in the header connector 100. The array includes a plurality of associated groups, each comprising two signal contacts 20 and one ground contact 130. The two signal contacts 20 in each associated group are associated as signal contact pairs 28 to transmit a pair of differential electrical signals through the header connector 100. One ground contact 130 within an associated group is associated with each signal contact pair 28.
[47] Figure 14 is an isometric view of the mating face 117 of the header connector 100 according to an alternative embodiment of the present invention. The signal contact pairs 28 are staggered relative from row to row with respect to one another. That is, the signal contact pairs 28 in row A are staggered relative to the signal contact pairs 28 is row B. Each signal contact pair 28 in one row, for example, row A, is staggered relative to a signal contact pair 28 in an adjacent row, for example, row B. Further, each signal contact pair 28 in one row, for example, row A, is shielded from a signal contact pair in an adjacent row, for example, row B, by a blade 136 of a ground contact 130. That is, an intervening row of blades 136 of ground contacts 130 is positioned between two rows of signal contact pairs 28, such as rows A and B of signal contact pairs 28. Further, the ground contact tails 132 intervene between signal contact tails 122 of signal contact pairs 28 within each row. Thus, each signal contact pair 28 is shielded from other signal contact pairs 28 by ground contacts 30.
[48] A comparison of blades 36 and 136 (as shown, for example, in Figures 2 and 14, respectively) shows that the recessed nature of the blade 136 from the housing retained portion 140 exhibits a more pronounced staggered effect between ground contacts 136. Further, the recessed nature of the blade 136 requires less material for the blades 136, and also allows for increased space within the header connector 100.
[49] Figure 15 is an isometric view of a portion of a receptacle connector 150 according to an alternative embodiment of the present invention. The receptacle connector 150 is similar to the receptacle connector 50 (shown with respect to Figure 6). The receptacle connector 150 includes a dielectric housing 152 having a main wall 154, an upper shroud 155 and a lower shroud 156. The receptacle connector 150 also includes the mating face 157 having a plurality of holes 158 and slots 159. The holes 158 receive and retain posts 26 of signal contacts 20, while the slots receive and retain blades 136 of ground contacts 130.
[50] Figure 16 is a plan view of the mating face 157 of the receptacle connector 150 according to an alternative embodiment of the present invention. The mating face 157 of the receptacle connector 150 is configured to mate with the mating face 117 of the header connector 100. When the receptacle connector 150 is fully mated with the header connector 100, the staggered nature of the associated groups of signal contact pairs 28 and ground contacts 130 with respect to one another shields signal contact pairs 28 in one row from signal contact pairs 28 in an adjacent row.
[51] Figure 17 is an isometric view showing one side of a contact module 160a, which is configured to be housed in the receptacle connector 150, according to an alternative embodiment of the present invention. Figure 18 is an isometric view showing one side of a contact module 160b, which is configured to be housed in the receptacle connector 150, according to an alternative embodiment of the present invention. The contact modules 160a and 160b are similar to each other, but each has a respective pattern of signal contacts corresponding to the pattern of signal contacts 20 in a respective one of the rows in the header connector 100. [52] The receptacle connector 150 holds a plurality of contact modules 160a and 160b. Each contact module 160a, 160b includes a dielectric molding 162a, 162b that holds signal contacts and a ground shield. The contact modules 160a, 160b may be assembled by inserting signal contacts 170a, 170b into the dielectric molding 162a, 162b, respectively, and mounting ground shields 180a, 180b onto the opposite sides of the dielectric moldings 162a, 162b, respectively. The ground shields 180a, 180b are mounted onto the dielectric moldings 162a, 162b, respectively, such that an interference fit exists between each ground shield 180a, 180b and its corresponding dielectric molding 162, 162b. Alternatively, the ground shields 180a, 180b may be snapably secured into the dielectric moldings 162a, 162b, respectively.
[53] Figure 19 is an isometric view of the contact module 160a from the opposite side of that shown in Figure 17 according to an alternative embodiment of the present invention. Figure 20 is an isometric view of the contact module 160b from the opposite side of that shown in Figure 17 according to an alternative embodiment of the present invention. Each of the contact modules 160a, 160b has a plurality of signal contacts 170a, 170b. Each signal contact 170a, 170b has a receptacle section 172a, 172b at a mating end and a compliant tail section 174a, 174b at a board-mating end. The receptacle sections 172a, 172b include dual contact beams 176a, 176b, respectively, each of which engages a corresponding signal contact post 26 that is inserted therebetween.
[54] Figure 21 is an isometric view of a ground shield 180a configured for the contact module 160a according to an alternative embodiment of the present invention. Figure 22 is an isometric view of a ground shield 180b configured for the contact 160b module according to an alternative embodiment of the present invention. As shown in Figures 17 and 18, each of the contact modules 160a, 160b has a ground shield 180a, 180b, respectively. Each ground shield 180a, 180b has ground contact springs 182a, 182b, respectively, which are engagable with corresponding ground contact blades 136 of the header connector 100. Additionally, each ground shield 180a, 180b has a compliant tail section 184a, 184b, respectively, for engaging ground through-holes in a circuit board (not shown). Each ground shield 180a, 180b also has a first upper barb 186a, 186b, a second upper bard 187a, 187b, and a lower barb 188a, 188b, all of which dig into the dielectric housing 152 as the contact module 160a, 160b is inserted into the receptacle housing 150 to secure the contact module 160a, 160b in the receptacle housing 150. Additionally, each ground shield 180a, 180b includes a resilient latch tab 189a, 189b, respectively, which extends from a folded portion 190a, 190b. The latch tabs 189a, 189b engage a corresponding ledge of the receptacle housing 150 to prevent the contact modules 160a, 160b from backing out of the receptacle housing 150. Additionally, the' ground shields 180a, 180b include protruding members 185a, 187a and 185b, 187b, respectively, which engage corresponding features within the dielectric moldings 162a, 162b, respectively, so that the ground shields 180a, 180b may be secured within the dielectric moldings.
[55] Each of the contact modules 160a, 160b have upper beams 164a, 164b and lower beams 168a, 168b that are receivable in corresponding tracks in the upper and lower shrouds 155 and 156, a projection 165a, 165b that may cooperate with a support on the upper shroud 155, and a lug 166a, 166b that is receivable in a groove in the lower shroud 156. The beams 164a, 164b, the projections 165a, 165b and the lugs 166a, 166b serve to stabilize and align the contact modules 160a, 160b in the receptacle housing 150.
[56] Embodiments of the present invention are not limited to the configurations shown. For example, more or less signal and ground contacts may be used within corresponding header and receptacle connectors. That is, the header connector may include more or less rows of signal contact pairs (and associated ground compliant sections), and the receptacle connector may include a corresponding number of contact modules spaced apart according to the orientation of the rows within the header connector. Additionally, the ground contacts may be configured so that the plane of the blade is not peφendicular to the plane of the compliant section of the ground contact. For example, the ground contact may include a semi-cylindrical blade that partially encircles a signal contact pair. Alternatively, the ground contacts may also include walls that extend perpendicularly from the edges of the blade to complete enclose a signal contact pair.
[57] Thus, the invention provides an electrical connector that exhibits improved signal characteristics in terms of impedance, interference, noise and jitter. Because differential pairs are shielded from one another both physically and electrically (by ground contacts), the effects of impedance, interference, noise and jitter are diminished. The electrical connector may accommodate a high number of signal contacts, while minimizing interference, noise and jitter among the signal contacts, due to the staggered nature of the rows of signal contact pairs and ground contacts within the electrical connector.

Claims

1. An electrical connector (10; 50; 100; 150) comprising a connector housing (12; 42; 112; 152) holding signal contacts (20; 72a, 72b; 172a, 172b) and ground contacts (30; 82a, 82b; 130; 182a, 182b) organized into contact groups, each said contact group having at least two of said signal contacts and one of said ground contacts, said contact groups being aligned in parallel rows (41; 43), characterized in that: said contact groups in each said row are staggered with respect to said contact groups in an adjacent said row.
2. The electrical connector of claim 1 wherein each of said ground contacts (30; 130) has a blade section (36; 136) isolating said signal contacts in its same said contact group from said signal contacts in an adjacent said row.
3. The electrical connector of claim 1 wherein each of said rows includes an alternating sequence of signal contact pairs and said ground contacts such that each said signal contact pair is separated from a next in-row signal contact pair by a said ground contact.
4. The electrical connector of claim 1 wherein adjacent said rows are staggered such that said signal contacts in said adjacent rows are separated from each another by said ground contacts.
5. The electrical connector of claim 1 wherein a first signal contact pair in a first row is shielded from a second signal contact pair in said first row by a first ground contact, and wherein said first row is staggered with respect to a second row such that said first signal contact pair is shielded from a third signal contact pair in said second row by said first ground contact.
6. The electrical connector of claim 1 wherein each of said ground contacts includes a tail section (32; 132) and a blade section (36; 136) which are joined offset from each other by a bend portion (37; 137), wherein said tail sections extend between pairs of said signal contacts in a first row, and said blade sections extend between pairs of said signal contacts in said first row and pairs of said signal contacts in a second row.
PCT/US2003/016089 2002-05-22 2003-05-21 High speed electrical connector WO2003100910A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP03755421A EP1508184B1 (en) 2002-05-22 2003-05-21 High speed electrical connector
DE60316145T DE60316145T2 (en) 2002-05-22 2003-05-21 FAST ELECTRICAL CONNECTOR
AU2003273140A AU2003273140A1 (en) 2002-05-22 2003-05-21 High speed electrical connector

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US38288602P 2002-05-22 2002-05-22
US60/382,886 2002-05-22
US10/255,769 2002-09-25
US10/255,769 US6808420B2 (en) 2002-05-22 2002-09-25 High speed electrical connector

Publications (1)

Publication Number Publication Date
WO2003100910A1 true WO2003100910A1 (en) 2003-12-04

Family

ID=29552929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/016089 WO2003100910A1 (en) 2002-05-22 2003-05-21 High speed electrical connector

Country Status (6)

Country Link
US (2) US6808420B2 (en)
EP (1) EP1508184B1 (en)
CN (1) CN1656653A (en)
AU (1) AU2003273140A1 (en)
DE (1) DE60316145T2 (en)
WO (1) WO2003100910A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102856691A (en) * 2006-12-19 2013-01-02 Fci公司 shieldless, high-speed, low-cross-talk electrical connector

Families Citing this family (162)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6843657B2 (en) * 2001-01-12 2005-01-18 Litton Systems Inc. High speed, high density interconnect system for differential and single-ended transmission applications
US6869292B2 (en) * 2001-07-31 2005-03-22 Fci Americas Technology, Inc. Modular mezzanine connector
US20050196987A1 (en) * 2001-11-14 2005-09-08 Shuey Joseph B. High density, low noise, high speed mezzanine connector
US20050170700A1 (en) * 2001-11-14 2005-08-04 Shuey Joseph B. High speed electrical connector without ground contacts
US6994569B2 (en) * 2001-11-14 2006-02-07 Fci America Technology, Inc. Electrical connectors having contacts that may be selectively designated as either signal or ground contacts
US6981883B2 (en) * 2001-11-14 2006-01-03 Fci Americas Technology, Inc. Impedance control in electrical connectors
US6976886B2 (en) * 2001-11-14 2005-12-20 Fci Americas Technology, Inc. Cross talk reduction and impedance-matching for high speed electrical connectors
US7390200B2 (en) * 2001-11-14 2008-06-24 Fci Americas Technology, Inc. High speed differential transmission structures without grounds
US7270573B2 (en) * 2002-08-30 2007-09-18 Fci Americas Technology, Inc. Electrical connector with load bearing features
US7008250B2 (en) * 2002-08-30 2006-03-07 Fci Americas Technology, Inc. Connector receptacle having a short beam and long wipe dual beam contact
US20040147169A1 (en) 2003-01-28 2004-07-29 Allison Jeffrey W. Power connector with safety feature
US7018246B2 (en) * 2003-03-14 2006-03-28 Fci Americas Technology, Inc. Maintenance of uniform impedance profiles between adjacent contacts in high speed grid array connectors
JP4212955B2 (en) * 2003-05-27 2009-01-21 富士通コンポーネント株式会社 Plug connector for balanced transmission
US7083432B2 (en) * 2003-08-06 2006-08-01 Fci Americas Technology, Inc. Retention member for connector system
US7074086B2 (en) * 2003-09-03 2006-07-11 Amphenol Corporation High speed, high density electrical connector
WO2005031922A2 (en) * 2003-09-26 2005-04-07 Fci Americas Technology, Inc. Improved impedance mating interface for electrical connectors
US7524209B2 (en) * 2003-09-26 2009-04-28 Fci Americas Technology, Inc. Impedance mating interface for electrical connectors
EP1702389B1 (en) 2003-12-31 2020-12-09 Amphenol FCI Asia Pte. Ltd. Electrical power contacts and connectors comprising same
US7458839B2 (en) 2006-02-21 2008-12-02 Fci Americas Technology, Inc. Electrical connectors having power contacts with alignment and/or restraining features
US6932649B1 (en) * 2004-03-19 2005-08-23 Tyco Electronics Corporation Active wafer for improved gigabit signal recovery, in a serial point-to-point architecture
US7137832B2 (en) * 2004-06-10 2006-11-21 Samtec Incorporated Array connector having improved electrical characteristics and increased signal pins with decreased ground pins
US7094102B2 (en) * 2004-07-01 2006-08-22 Amphenol Corporation Differential electrical connector assembly
US7108556B2 (en) * 2004-07-01 2006-09-19 Amphenol Corporation Midplane especially applicable to an orthogonal architecture electronic system
US8444436B1 (en) 2004-07-01 2013-05-21 Amphenol Corporation Midplane especially applicable to an orthogonal architecture electronic system
US7242325B2 (en) * 2004-08-02 2007-07-10 Sony Corporation Error correction compensating ones or zeros string suppression
US7160117B2 (en) * 2004-08-13 2007-01-09 Fci Americas Technology, Inc. High speed, high signal integrity electrical connectors
US7214104B2 (en) * 2004-09-14 2007-05-08 Fci Americas Technology, Inc. Ball grid array connector
US7226296B2 (en) * 2004-12-23 2007-06-05 Fci Americas Technology, Inc. Ball grid array contacts with spring action
US7384289B2 (en) 2005-01-31 2008-06-10 Fci Americas Technology, Inc. Surface-mount connector
US20060245137A1 (en) * 2005-04-29 2006-11-02 Fci Americas Technology, Inc. Backplane connectors
US6986682B1 (en) 2005-05-11 2006-01-17 Myoungsoo Jeon High speed connector assembly with laterally displaceable head portion
EP1732176A1 (en) * 2005-06-08 2006-12-13 Tyco Electronics Nederland B.V. Electrical connector
DE202005009919U1 (en) * 2005-06-24 2005-09-01 Harting Electronics Gmbh & Co. Kg Connector for use with electronic circuit board has series of contact modules that have screening contacts
US7396259B2 (en) * 2005-06-29 2008-07-08 Fci Americas Technology, Inc. Electrical connector housing alignment feature
US7163421B1 (en) * 2005-06-30 2007-01-16 Amphenol Corporation High speed high density electrical connector
US7914304B2 (en) 2005-06-30 2011-03-29 Amphenol Corporation Electrical connector with conductors having diverging portions
US20090291593A1 (en) 2005-06-30 2009-11-26 Prescott Atkinson High frequency broadside-coupled electrical connector
US7258551B2 (en) * 2005-07-29 2007-08-21 Fci Americas Technology, Inc. Electrical connector stress relief at substrate interface
US7326082B2 (en) * 2005-11-21 2008-02-05 Tyco Electronics Corporation Electrical connector
US7819708B2 (en) * 2005-11-21 2010-10-26 Fci Americas Technology, Inc. Receptacle contact for improved mating characteristics
DE202005020474U1 (en) * 2005-12-31 2006-02-23 Erni Elektroapparate Gmbh Connectors
US7384311B2 (en) * 2006-02-27 2008-06-10 Tyco Electronics Corporation Electrical connector having contact modules with terminal exposing slots
US7407413B2 (en) 2006-03-03 2008-08-05 Fci Americas Technology, Inc. Broadside-to-edge-coupling connector system
US7431616B2 (en) 2006-03-03 2008-10-07 Fci Americas Technology, Inc. Orthogonal electrical connectors
US7344391B2 (en) * 2006-03-03 2008-03-18 Fci Americas Technology, Inc. Edge and broadside coupled connector
US7331830B2 (en) * 2006-03-03 2008-02-19 Fci Americas Technology, Inc. High-density orthogonal connector
US7726982B2 (en) 2006-06-15 2010-06-01 Fci Americas Technology, Inc. Electrical connectors with air-circulation features
US7462924B2 (en) * 2006-06-27 2008-12-09 Fci Americas Technology, Inc. Electrical connector with elongated ground contacts
US7549897B2 (en) 2006-08-02 2009-06-23 Tyco Electronics Corporation Electrical connector having improved terminal configuration
US7753742B2 (en) 2006-08-02 2010-07-13 Tyco Electronics Corporation Electrical terminal having improved insertion characteristics and electrical connector for use therewith
US7670196B2 (en) 2006-08-02 2010-03-02 Tyco Electronics Corporation Electrical terminal having tactile feedback tip and electrical connector for use therewith
US8142236B2 (en) 2006-08-02 2012-03-27 Tyco Electronics Corporation Electrical connector having improved density and routing characteristics and related methods
US7500871B2 (en) 2006-08-21 2009-03-10 Fci Americas Technology, Inc. Electrical connector system with jogged contact tails
US7713088B2 (en) 2006-10-05 2010-05-11 Fci Broadside-coupled signal pair configurations for electrical connectors
US7708569B2 (en) 2006-10-30 2010-05-04 Fci Americas Technology, Inc. Broadside-coupled signal pair configurations for electrical connectors
US7413451B2 (en) * 2006-11-07 2008-08-19 Myoungsoo Jeon Connector having self-adjusting surface-mount attachment structures
US7351115B1 (en) * 2007-01-17 2008-04-01 International Business Machines Corporation Method for modifying an electrical connector
US20080203547A1 (en) * 2007-02-26 2008-08-28 Minich Steven E Insert molded leadframe assembly
US7422444B1 (en) * 2007-02-28 2008-09-09 Fci Americas Technology, Inc. Orthogonal header
US7794240B2 (en) * 2007-04-04 2010-09-14 Amphenol Corporation Electrical connector with complementary conductive elements
US7794278B2 (en) * 2007-04-04 2010-09-14 Amphenol Corporation Electrical connector lead frame
US7722401B2 (en) 2007-04-04 2010-05-25 Amphenol Corporation Differential electrical connector with skew control
US7905731B2 (en) 2007-05-21 2011-03-15 Fci Americas Technology, Inc. Electrical connector with stress-distribution features
EP2162959A1 (en) * 2007-05-23 2010-03-17 Fci Electrical connector with staggered single ended contacts
US7811100B2 (en) 2007-07-13 2010-10-12 Fci Americas Technology, Inc. Electrical connector system having a continuous ground at the mating interface thereof
US7762857B2 (en) 2007-10-01 2010-07-27 Fci Americas Technology, Inc. Power connectors with contact-retention features
US7585186B2 (en) * 2007-10-09 2009-09-08 Tyco Electronics Corporation Performance enhancing contact module assemblies
US7416447B1 (en) * 2007-12-21 2008-08-26 Chief Land Electronic Co., Ltd. Terminal module for female connector
US8038465B2 (en) * 2008-01-07 2011-10-18 Lear Corporation Electrical connector and heat sink
US7713096B2 (en) * 2008-01-07 2010-05-11 Lear Corporation Modular electrical connector
US8469720B2 (en) 2008-01-17 2013-06-25 Amphenol Corporation Electrical connector assembly
US7666009B2 (en) * 2008-02-08 2010-02-23 Fci Americas Technology, Inc. Shared hole orthogonal footprints
US8764464B2 (en) 2008-02-29 2014-07-01 Fci Americas Technology Llc Cross talk reduction for high speed electrical connectors
US7651373B2 (en) * 2008-03-26 2010-01-26 Tyco Electronics Corporation Board-to-board electrical connector
US7666014B2 (en) * 2008-04-22 2010-02-23 Hon Hai Precision Ind. Co., Ltd. High density connector assembly having two-leveled contact interface
US8062051B2 (en) 2008-07-29 2011-11-22 Fci Americas Technology Llc Electrical communication system having latching and strain relief features
CN201285845Y (en) * 2008-08-05 2009-08-05 富士康(昆山)电脑接插件有限公司 Electric connector
TWM383226U (en) * 2008-09-09 2010-06-21 Molex Inc Connector with improved manufacturability
US7637777B1 (en) * 2008-10-13 2009-12-29 Tyco Electronics Corporation Connector assembly having a noise-reducing contact pattern
MY164930A (en) 2008-11-14 2018-02-15 Molex Inc Connector with terminals forming differential pairs
US7758357B2 (en) * 2008-12-02 2010-07-20 Hon Hai Precision Ind. Co., Ltd. Receptacle backplane connector having interface mating with plug connectors having different pitch arrangement
CN102318143B (en) 2008-12-12 2015-03-11 莫列斯公司 Resonance modifying connector
CN101771225B (en) * 2009-01-07 2012-07-04 富士康(昆山)电脑接插件有限公司 Application of electric connector
USD606497S1 (en) 2009-01-16 2009-12-22 Fci Americas Technology, Inc. Vertical electrical connector
USD610548S1 (en) 2009-01-16 2010-02-23 Fci Americas Technology, Inc. Right-angle electrical connector
USD608293S1 (en) 2009-01-16 2010-01-19 Fci Americas Technology, Inc. Vertical electrical connector
USD640637S1 (en) 2009-01-16 2011-06-28 Fci Americas Technology Llc Vertical electrical connector
USD664096S1 (en) 2009-01-16 2012-07-24 Fci Americas Technology Llc Vertical electrical connector
USD619099S1 (en) 2009-01-30 2010-07-06 Fci Americas Technology, Inc. Electrical connector
US8323049B2 (en) 2009-01-30 2012-12-04 Fci Americas Technology Llc Electrical connector having power contacts
CN102356517B (en) 2009-02-04 2014-08-13 安费诺有限公司 Differential electrical connector with improved skew control
US9277649B2 (en) 2009-02-26 2016-03-01 Fci Americas Technology Llc Cross talk reduction for high-speed electrical connectors
US8366485B2 (en) 2009-03-19 2013-02-05 Fci Americas Technology Llc Electrical connector having ribbed ground plate
USD618180S1 (en) 2009-04-03 2010-06-22 Fci Americas Technology, Inc. Asymmetrical electrical connector
USD618181S1 (en) 2009-04-03 2010-06-22 Fci Americas Technology, Inc. Asymmetrical electrical connector
US8608510B2 (en) 2009-07-24 2013-12-17 Fci Americas Technology Llc Dual impedance electrical connector
DE102009040487A1 (en) * 2009-09-08 2011-03-24 Erni Electronics Gmbh Plug connection with shielding
US8550861B2 (en) * 2009-09-09 2013-10-08 Amphenol TCS Compressive contact for high speed electrical connector
CN201608369U (en) * 2009-10-12 2010-10-13 富士康(昆山)电脑接插件有限公司 Electric connector
CN102044801B (en) * 2009-10-19 2013-05-08 富士康(昆山)电脑接插件有限公司 Electric connector and assembling method
US8267721B2 (en) 2009-10-28 2012-09-18 Fci Americas Technology Llc Electrical connector having ground plates and ground coupling bar
US8616919B2 (en) 2009-11-13 2013-12-31 Fci Americas Technology Llc Attachment system for electrical connector
TWI416821B (en) * 2009-12-10 2013-11-21 Hon Hai Prec Ind Co Ltd Electrical connector and method of assembling the same
EP2519994A4 (en) 2009-12-30 2015-01-21 Fci Asia Pte Ltd Electrical connector having impedence tuning ribs
DE102010002681B4 (en) * 2010-03-09 2018-10-18 Te Connectivity Germany Gmbh Electrical connector, electrical connector and assembled electrical cable
US7976340B1 (en) 2010-03-12 2011-07-12 Tyco Electronics Corporation Connector system with electromagnetic interference shielding
CN107069274B (en) 2010-05-07 2020-08-18 安费诺有限公司 High performance cable connector
CN101859963B (en) * 2010-05-13 2013-08-21 深圳市德仓科技有限公司 Electric connector
US9136634B2 (en) 2010-09-03 2015-09-15 Fci Americas Technology Llc Low-cross-talk electrical connector
WO2012061142A2 (en) * 2010-10-25 2012-05-10 Molex Incorporated Adapter frame with integrated emi and engagement aspects
US20120120596A1 (en) * 2010-11-16 2012-05-17 Arista Networks, Inc. Air cooling architecture for network switch chassis with orthogonal midplane
US8469745B2 (en) * 2010-11-19 2013-06-25 Tyco Electronics Corporation Electrical connector system
WO2012080839A1 (en) * 2010-12-16 2012-06-21 Fci Contact pin, header connector and connector assembly
US8636543B2 (en) 2011-02-02 2014-01-28 Amphenol Corporation Mezzanine connector
CN102738660B (en) * 2011-03-31 2015-10-07 富士康(昆山)电脑接插件有限公司 Electric connector and assembly thereof
US8262412B1 (en) * 2011-05-10 2012-09-11 Tyco Electronics Corporation Electrical connector having compensation for air pockets
US8430691B2 (en) * 2011-07-13 2013-04-30 Tyco Electronics Corporation Grounding structures for header and receptacle assemblies
EP2624034A1 (en) 2012-01-31 2013-08-07 Fci Dismountable optical coupling device
DE102012005810B4 (en) * 2012-03-22 2019-12-05 Te Connectivity Germany Gmbh Electrical connector, method of making an electrical connector, and kit of making a connector series
USD718253S1 (en) 2012-04-13 2014-11-25 Fci Americas Technology Llc Electrical cable connector
USD727852S1 (en) 2012-04-13 2015-04-28 Fci Americas Technology Llc Ground shield for a right angle electrical connector
USD727268S1 (en) 2012-04-13 2015-04-21 Fci Americas Technology Llc Vertical electrical connector
US9257778B2 (en) 2012-04-13 2016-02-09 Fci Americas Technology High speed electrical connector
US8944831B2 (en) 2012-04-13 2015-02-03 Fci Americas Technology Llc Electrical connector having ribbed ground plate with engagement members
JP5863041B2 (en) * 2012-06-01 2016-02-16 アルプス電気株式会社 Socket for electronic parts
USD751507S1 (en) 2012-07-11 2016-03-15 Fci Americas Technology Llc Electrical connector
US9543703B2 (en) 2012-07-11 2017-01-10 Fci Americas Technology Llc Electrical connector with reduced stack height
US9831588B2 (en) 2012-08-22 2017-11-28 Amphenol Corporation High-frequency electrical connector
US20140073173A1 (en) * 2012-09-07 2014-03-13 All Best Electronics Co., Ltd. Electrical connector
US8961241B2 (en) * 2012-09-27 2015-02-24 Itt Manufacturing Enterprises, Llc Electrical connector
US20140146462A1 (en) * 2012-11-26 2014-05-29 Giovanni Coglitore High Density Storage Applicance
USD745852S1 (en) 2013-01-25 2015-12-22 Fci Americas Technology Llc Electrical connector
JP6127199B2 (en) 2013-03-13 2017-05-10 モレックス エルエルシー Integrated signal-to-element and connector using the same
USD720698S1 (en) 2013-03-15 2015-01-06 Fci Americas Technology Llc Electrical cable connector
CN103219619B (en) * 2013-03-28 2016-03-30 华为技术有限公司 Communication equipment, electric coupler component and electric connector
CN104466546B (en) * 2013-09-17 2017-01-11 通普康电子（昆山）有限公司 Communication connection device and lead frame group thereof
US9905975B2 (en) 2014-01-22 2018-02-27 Amphenol Corporation Very high speed, high density electrical interconnection system with edge to broadside transition
JP6269451B2 (en) * 2014-11-19 2018-01-31 株式会社デンソー Electrical connection structure
CN114552261A (en) 2015-07-07 2022-05-27 安费诺富加宜（亚洲）私人有限公司 Electrical connector
TWI648925B (en) 2015-12-14 2019-01-21 莫仕有限公司 Backplane connector and connector system
TWI747938B (en) 2016-08-23 2021-12-01 美商安芬諾股份有限公司 Connector configurable for high performance
US9831608B1 (en) * 2016-10-31 2017-11-28 Te Connectivity Corporation Electrical connector having ground shield that controls impedance at mating interface
CN107275899B (en) * 2017-05-19 2019-07-23 东莞创宝达电器制品有限公司 A kind of high speed transmission of signals connector body
US10326244B2 (en) * 2017-09-06 2019-06-18 Te Connectivity Corporation Electrical connector and electrical contact configured to reduce resonance
US10490950B2 (en) 2017-09-11 2019-11-26 Te Connectivity Corporation Header connector having header ground shields
CN107623200A (en) * 2017-10-23 2018-01-23 安费诺（常州）高端连接器有限公司 Orthogonal staggeredly crimping back panel connector
CN111512499B (en) 2017-10-30 2022-03-08 安费诺富加宜（亚洲）私人有限公司 Low crosstalk card edge connector
US10559929B2 (en) * 2018-01-25 2020-02-11 Te Connectivity Corporation Electrical connector system having a PCB connector footprint
CN208862209U (en) 2018-09-26 2019-05-14 安费诺东亚电子科技(深圳)有限公司 A kind of connector and its pcb board of application
US11870171B2 (en) 2018-10-09 2024-01-09 Amphenol Commercial Products (Chengdu) Co., Ltd. High-density edge connector
CN109818208B (en) * 2019-03-21 2019-11-08 四川大学 Connector for high data rate
TWM582251U (en) 2019-04-22 2019-08-11 香港商安費諾（東亞）有限公司 Connector set with hidden locking mechanism and socket connector thereof
TW202127754A (en) 2019-11-06 2021-07-16 香港商安費諾（東亞）有限公司 High-frequency electrical connector with interlocking segments
US11588277B2 (en) 2019-11-06 2023-02-21 Amphenol East Asia Ltd. High-frequency electrical connector with lossy member
TW202135385A (en) 2020-01-27 2021-09-16 美商Ｆｃｉ美國有限責任公司 High speed connector
WO2021154718A1 (en) 2020-01-27 2021-08-05 Fci Usa Llc High speed, high density direct mate orthogonal connector
USD987574S1 (en) * 2020-06-30 2023-05-30 Dongguan Luxshare Technologies Co., Ltd Electrical connector
US11652307B2 (en) 2020-08-20 2023-05-16 Amphenol East Asia Electronic Technology (Shenzhen) Co., Ltd. High speed connector
CN212874843U (en) 2020-08-31 2021-04-02 安费诺商用电子产品(成都)有限公司 Electrical connector
CN215816516U (en) 2020-09-22 2022-02-11 安费诺商用电子产品(成都)有限公司 Electrical connector
CN213636403U (en) 2020-09-25 2021-07-06 安费诺商用电子产品(成都)有限公司 Electrical connector
WO2023144755A1 (en) * 2022-01-31 2023-08-03 Molex, Llc High-speed connector system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0959535A1 (en) * 1998-05-21 1999-11-24 Molex Incorporated High-speed edge connector
EP1107387A1 (en) * 1999-12-03 2001-06-13 F.C.I. - Framatome Connectors International Shielded connector
US6347962B1 (en) * 2001-01-30 2002-02-19 Tyco Electronics Corporation Connector assembly with multi-contact ground shields
US6350134B1 (en) * 2000-07-25 2002-02-26 Tyco Electronics Corporation Electrical connector having triad contact groups arranged in an alternating inverted sequence

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3777093A (en) * 1972-05-25 1973-12-04 R Sterns Electromechanical relay
GB9205087D0 (en) * 1992-03-09 1992-04-22 Amp Holland Sheilded back plane connector
US5403206A (en) * 1993-04-05 1995-04-04 Teradyne, Inc. Shielded electrical connector
US6146157A (en) * 1997-07-08 2000-11-14 Framatome Connectors International Connector assembly for printed circuit boards
EP1072069A4 (en) * 1998-04-16 2002-01-09 Thomas & Betts Int Crosstalk reducing electrical jack and plug connector
US6179663B1 (en) * 1998-04-29 2001-01-30 Litton Systems, Inc. High density electrical interconnect system having enhanced grounding and cross-talk reduction capability
US6461202B2 (en) * 2001-01-30 2002-10-08 Tyco Electronics Corporation Terminal module having open side for enhanced electrical performance
US6652318B1 (en) 2002-05-24 2003-11-25 Fci Americas Technology, Inc. Cross-talk canceling technique for high speed electrical connectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0959535A1 (en) * 1998-05-21 1999-11-24 Molex Incorporated High-speed edge connector
EP1107387A1 (en) * 1999-12-03 2001-06-13 F.C.I. - Framatome Connectors International Shielded connector
US6350134B1 (en) * 2000-07-25 2002-02-26 Tyco Electronics Corporation Electrical connector having triad contact groups arranged in an alternating inverted sequence
US6347962B1 (en) * 2001-01-30 2002-02-19 Tyco Electronics Corporation Connector assembly with multi-contact ground shields

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102856691A (en) * 2006-12-19 2013-01-02 Fci公司 shieldless, high-speed, low-cross-talk electrical connector

Also Published As

Publication number Publication date
AU2003273140A1 (en) 2003-12-12
US6808420B2 (en) 2004-10-26
CN1656653A (en) 2005-08-17
US6913490B2 (en) 2005-07-05
EP1508184A1 (en) 2005-02-23
DE60316145D1 (en) 2007-10-18
US20050020135A1 (en) 2005-01-27
DE60316145T2 (en) 2008-05-29
EP1508184B1 (en) 2007-09-05
US20030220021A1 (en) 2003-11-27

Similar Documents

Publication Publication Date Title
EP1508184B1 (en) High speed electrical connector
EP1783871B1 (en) Orthogonal connector
EP0924812B1 (en) High density interstitial connector system
US11637400B2 (en) Electrical cable connector
EP2122767B1 (en) Backplane connector
EP0903816B1 (en) Three row plug and receptacle connectors with ground shield
US6227882B1 (en) Connector for electrical isolation in a condensed area
EP1190469B1 (en) Modular electrical connector and connector system
US8616919B2 (en) Attachment system for electrical connector
EP2122789B1 (en) Shieldless, high-speed, low-cross-talk electrical connector
US7905751B1 (en) Electrical connector module with contacts of a differential pair held in separate chicklets
CN111373611B (en) Keyed input/output connector
US6022245A (en) Filtered modular connector
US10355420B1 (en) Electrical connector with connected ground shields
WO2005011068A2 (en) Modular electrical connector
EP0993081A2 (en) Modular connector with capacitive plates
WO1998022994A1 (en) High speed and high density backplane connector
EP0476883B2 (en) Electrical connector assembly

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2003755421

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 20038116405

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 2003755421

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP

WWG Wipo information: grant in national office

Ref document number: 2003755421

Country of ref document: EP