CN1292636A - Printed circuit board with built-in electronic inductor and manufacturing method, and electronic inductor - Google Patents
Printed circuit board with built-in electronic inductor and manufacturing method, and electronic inductor Download PDFInfo
- Publication number
- CN1292636A CN1292636A CN001297309A CN00129730A CN1292636A CN 1292636 A CN1292636 A CN 1292636A CN 001297309 A CN001297309 A CN 001297309A CN 00129730 A CN00129730 A CN 00129730A CN 1292636 A CN1292636 A CN 1292636A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- pcb
- magnetic core
- inductor
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 230000006698 induction Effects 0.000 abstract description 5
- 239000003292 glue Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
- H05K1/165—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed inductors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/08—Magnetic details
- H05K2201/083—Magnetic materials
- H05K2201/086—Magnetic materials for inductive purposes, e.g. printed inductor with ferrite core
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09009—Substrate related
- H05K2201/09063—Holes or slots in insulating substrate not used for electrical connections
Abstract
The present invention relates to a printed circuit board having a built-in electronic induction device including a transformer or an inductor, a method of manufacturing such, and a electron induction system made by the method. A printed circuit board comprises a pair of core receiving holes perforated on predetermined portions thereof, and a spiral pattern, formed with a conductive material around a center of the core receiving holes, the patterns for performing a role of a coil of the electronic induction device mounted on the printed circuit board.
Description
The present invention relates to printed circuit board (PCB), be specifically related to have printed circuit board (PCB) such as the electronic inductor of transformer or inductor.The invention still further relates to the method for making this printed circuit board (PCB).The invention still further relates to the electronic inductor of making by this method.
Usually, the printed circuit board (PCB) of built-in electronic product has a plurality of elements, comprising: transformer is used for receiving alternating current and utilizing electronic induction that this power supply is provided to other circuit from a circuit; And inductor, be used to use inductance induce representative to around or the value of the outer force intensity disturbed by the magnetic flux change of electric wire or coil.
The structure that is installed in the prior art transformer on the conventional printed circuit board (PCB) is described to 1D with reference to Figure 1A below.Fig. 1 shows the structure of prior art transformer, and wherein Figure 1A is a front view, and Figure 1B is a cross-sectional view, and Fig. 1 C is a top view, and Fig. 1 D is a bottom view.
Conventional transformer 12 comprises bobbin 13, is wrapped in the coil 14 on the bobbin 13, is positioned at a plurality of connection pins 15 of terminal separately that are electrically connected to of bobbin 13 bottoms, around the upper and lower magnetic core 16 and 17 of bobbin 13 whole excircles.
If transformer 12 is installed on the printed circuit board (PCB) 11 as shown in Figure 2, a plurality of connection pins 15 that will be arranged in bobbin 13 bottoms insert or are welded to the fixing hole 11a that forms on the printed circuit board (PCB) 11.
The structure that is installed in the prior art inductor on the conventional printed circuit board (PCB) is described to 3D with reference to Fig. 3 A below.Fig. 3 shows the structure of prior art inductor, and wherein Fig. 3 A is a front view, and Fig. 3 B is a cross-sectional view, and Fig. 3 C is a top view, and Fig. 3 D is a bottom view.
As Fig. 3 A to shown in the 3D, conventional inductor 22 comprises bobbin 23, be wrapped in the coil 24 on the bobbin 23, be positioned at a plurality of pins 25 that are connected that each terminal bobbin 23 bottoms and coil 24 is electrically connected, have the magnetic core 27 and 28 of the fixedly lappet 29 of the permanent opening 26 that forms on the two ends of inserting bobbin 23.
If inductor 22 is installed on the printed circuit board (PCB) 21 as shown in Figure 5, a plurality of connection pins 25 that will be arranged in the bobbin bottom insert or are welded to the fixing hole 21a that forms on the printed circuit board (PCB) 21.
For above-mentioned conventional transformer 12 or inductor 22 are installed on printed circuit board (PCB) 11 or 21, need to make separately transformer 12 or inductor 22, be installed in then on printed circuit board (PCB) 11 or 21.In addition, in order to make transformer 21 or inductor 22, coil 14 or 24 should be wrapped on bobbin 13 or 23.Need coil 14 or 24 be wrapped on bobbin 13 or 23 with coil winding machine.
After being wrapped in coil 14 or 24 on bobbin 13 or 23, each terminals of coil 14 or 24 is electrically connected to a plurality of connection pins 15 or 25 that are positioned at bobbin 13 or 23 bottoms.Manufacturing transformer 12 or inductor 22 need a lot of operations, make productivity ratio descend.In addition, prior art can't be applied to the electronic product with limited height, for example liquid crystal display effectively.
An object of the present invention is to provide a kind of printed circuit board (PCB), the electronic inductor such as transformer or inductor can easily be installed thereon, so that solve prior art problems and defective.
Another object of the present invention provides a kind ofly to be had as the transformer of electronic induction element or the printed circuit board (PCB) of inductor.
Another object of the present invention provides a kind of manufacturing and has method such as the printed circuit board (PCB) of the electronic inductor of built-in transformer or inductor.
Another object of the present invention provides a kind of electronic inductor that can easily be installed on the printed circuit board (PCB).
To achieve these goals, according to an aspect of the present invention, a kind of printed circuit board (PCB) that is built-in with electric equipment is provided, comprise: a pair of magnetic core receiver hole of the predetermined portions of break-through printed circuit board (PCB) and on the printed circuit board (PCB) each magnetic core receiver hole in the spiral figure that constitutes by electric conducting material that is formed centrally.The function of this spiral figure is equivalent to be installed in the coil of the electronic inductor on the printed circuit board (PCB).
According to a further aspect in the invention, provide a kind of method of making printed circuit board (PCB), may further comprise the steps: at the predetermined portions break-through magnetic core receiver hole of printed circuit board (PCB); Around each magnetic core receiver hole, form the spiral figure that constitutes by electric conducting material; The arm of last magnetic core is inserted the magnetic core receiver hole of printed circuit board (PCB); Following magnetic core is connected to the arm of the last magnetic core that stretches out from printed circuit board (PCB) downwards.
On printed circuit board (PCB), form this spiral figure with circular or tetragonal closed circuit.This figure forms in the one or both sides of printed circuit board (PCB).
By reference accompanying drawing description of a preferred embodiment, above-mentioned purpose of the present invention, further feature and advantage will be more obvious, in the accompanying drawing:
Fig. 1 shows the structure of prior art transformer, and wherein Figure 1A is a front view, and Figure 1B is a cross-sectional view, and Fig. 1 C is a top view, and Fig. 1 D is a bottom view;
Fig. 2 is the exploded view of the installment state of prior art transformer on the printed circuit board (PCB) in the presentation graphs 1;
Fig. 3 shows the structure of prior art inductor, and wherein Fig. 3 A is a front view, and Fig. 3 B is a cross-sectional view, and Fig. 3 C is a top view, and Fig. 3 D is a bottom view;
Fig. 4 is the cross-sectional view of prior art inductor;
Fig. 5 is the exploded view of the state of the expression prior art inductor of installing on printed circuit board (PCB) shown in Figure 3;
Fig. 6 is the state of transformer or inductor is installed in expression on printed circuit board (PCB) according to the present invention a exploded view;
Fig. 7 is the transformer that connects among Fig. 6 or the front view of inductor.
With reference to the accompanying drawings printed circuit board (PCB) according to the preferred embodiment of the invention is elaborated.
Fig. 6 is illustrated in the exploded view that the state of transformer or inductor is installed on the printed circuit board (PCB).Fig. 7 is the transformer installed among Fig. 6 or the front view of inductor.
Printed circuit board (PCB) 1 according to the present invention comprises a pair of magnetic core receiver hole 4 of predetermined portions of break-through printed circuit board (PCB) and the spiral figure 5 that forms around magnetic core receiver hole 4.The spiral figure that forms on printed circuit board (PCB) 15 is made of thin conductive film, and the function of its execution is equivalent to the coil in prior art transformer or the inductor.Spiral figure 5 is closed circuits of circle or quadrangle form.In addition, figure 5 can be formed on the both sides or a side of printed circuit board (PCB) 1.
Printed circuit board (PCB) comprises last magnetic core 3 with a pair of arm and the following magnetic core 6 that sticks with glue the arm bottom of tying magnetic core 3.
The magnetic core receiver hole 4 of the arm break-through printed circuit board (PCB) of last magnetic core 3, and stretch out downwards from printed circuit board (PCB).The following magnetic core 6 of plate shape is bonded to the arm of the last magnetic core 3 that stretches out from printed circuit board (PCB) downwards.
Transformer of installing on printed circuit board (PCB) according to the present invention or inductor 2 form the part of printed circuit board (PCB), and need not extra bobbin or coil.
As shown in top Fig. 6 and 7, if desired transformer or inductor 2 are installed to the printed circuit board (PCB) 1 that is built-in with electronic product, the magnetic core receiver hole 4 that transformer or inductor 2 break-through are formed on the predetermined portions of printed circuit board (PCB) 1, and the copper cash spiral is centered around around the magnetic core receiver hole 4.
Then, the arm of last magnetic core 3 is inserted the magnetic core receiver hole 4 of printed circuit board (PCB).To descend magnetic core 6 to be bonded to the arm of the last magnetic core 3 that stretches out from printed circuit board (PCB) downwards with glue, so that produce transformer or inductor 2.
As mentioned above, can will not have the transformer or the inductor of winding around to be installed on the printed circuit board (PCB) of built-in electronic product, thereby significantly reduced the manufacturing cost or the built-up time of transformer or inductor.
The foregoing description is exemplary, and should not be construed as limitation of the present invention.The present invention can easily be applied to the device of other type.Description of the invention is illustrative, does not limit the scope of the claims.Under the situation that does not depart from the scope of the invention, those skilled in the art are easy to carry out various replacements, modification and modification.
Claims (9)
1. printed circuit board (PCB) comprises:
The a pair of magnetic core receiver hole of the predetermined portions of break-through printed circuit board (PCB); With
On the printed circuit board (PCB) each magnetic core receiver hole in the spiral figure that constitutes by electric conducting material that is formed centrally;
Wherein the function of this spiral figure is equivalent to be installed in the coil of the electronic inductor on the printed circuit board (PCB).
2. according to the printed circuit board (PCB) of claim 1, wherein the closed circuit with circle or quadrangle form forms this spiral figure on the surface of printed circuit board (PCB).
3. according to the printed circuit board (PCB) of claim 2, wherein the side at printed circuit board (PCB) forms this spiral figure.
4. according to the printed circuit board (PCB) of claim 2, wherein form this spiral figure in the both sides of printed circuit board (PCB).
5. a manufacturing has the method such as the printed circuit board (PCB) of the built-in electronic inductor of transformer or inductor, may further comprise the steps:
Predetermined portions break-through magnetic core receiver hole at printed circuit board (PCB);
Around each magnetic core receiver hole, form the spiral figure that constitutes by electric conducting material;
The arm of last magnetic core is inserted the magnetic core receiver hole of printed circuit board (PCB);
Following magnetic core is connected to the arm of the last magnetic core that stretches out from printed circuit board (PCB) downwards.
6. according to the method for claim 5, wherein the closed circuit with circle or quadrangle form forms this spiral figure on the surface of printed circuit board (PCB).
7. according to the method for claim 5, wherein the side at printed circuit board (PCB) forms this spiral figure.
8. according to the method for claim 5, wherein form this spiral figure in the both sides of printed circuit board (PCB).
9. electronic inductor is by the method manufacturing of claim 5 to 8.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990043474A KR100339563B1 (en) | 1999-10-08 | 1999-10-08 | Electronic parts attachment structure and its mathod |
| KR43474/1999 | 1999-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1292636A true CN1292636A (en) | 2001-04-25 |
Family
ID=19614510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN001297309A Pending CN1292636A (en) | 1999-10-08 | 2000-10-08 | Printed circuit board with built-in electronic inductor and manufacturing method, and electronic inductor |
Country Status (6)
| Country | Link |
|---|---|
| KR (1) | KR100339563B1 (en) |
| CN (1) | CN1292636A (en) |
| BR (1) | BR0004921A (en) |
| GB (1) | GB2355343A (en) |
| ID (1) | ID28061A (en) |
| MX (1) | MXPA00009775A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7154365B2 (en) | 2002-08-09 | 2006-12-26 | Samsung Electronics Co., Ltd. | Apparatus for fixing bobbin to printed circuit board for use in transformer |
| US7849586B2 (en) | 2003-07-16 | 2010-12-14 | Marvell World Trade Ltd. | Method of making a power inductor with reduced DC current saturation |
| US7868725B2 (en) | 2003-07-16 | 2011-01-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| CN102159037A (en) * | 2011-03-04 | 2011-08-17 | 聚信科技有限公司 | Core burying method for high-current magnetic device and printed circuit board manufacturing method |
| US8035471B2 (en) | 2003-07-16 | 2011-10-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| CN102325429A (en) * | 2011-08-15 | 2012-01-18 | 深圳市核达中远通电源技术有限公司 | Method for bonding upper and lower magnetic cores of module power supply |
| CN101431868B (en) * | 2008-12-11 | 2012-03-21 | 田先平 | Production method of winding integrated multi-layer PCB |
| CN101770853B (en) * | 2008-12-26 | 2012-07-25 | Tdk株式会社 | Coil substrate structure, and switching power supply |
| US8324872B2 (en) | 2004-03-26 | 2012-12-04 | Marvell World Trade, Ltd. | Voltage regulator with coupled inductors having high coefficient of coupling |
| CN103766007A (en) * | 2011-05-24 | 2014-04-30 | 朱马技术有限公司 | Printed circuit board having a molded part and method for the production thereof |
| CN103874407A (en) * | 2012-12-17 | 2014-06-18 | 斯沃奇集团研究和开发有限公司 | Method for manufacturing a flexible portable electronic device |
| CN103956250A (en) * | 2014-05-13 | 2014-07-30 | 华为技术有限公司 | Surface pasting type planar magnetic element and module thereof |
| CN104112576A (en) * | 2014-06-25 | 2014-10-22 | 东莞联宝光电科技有限公司 | Ultra-thin transformer |
| CN107027241A (en) * | 2016-02-02 | 2017-08-08 | 景硕科技股份有限公司 | Has the increasing layer carrying board structure of magnetic induction coil and soft board |
| CN109561580A (en) * | 2017-09-27 | 2019-04-02 | 欣兴电子股份有限公司 | Carrying board structure |
| US10256028B2 (en) | 2016-03-31 | 2019-04-09 | Kinsus Interconnect Technology Corp. | Buildup board structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7432793B2 (en) | 2005-12-19 | 2008-10-07 | Bose Corporation | Amplifier output filter having planar inductor |
| US7332993B1 (en) | 2007-04-10 | 2008-02-19 | Bose Corporation | Planar transformer having fractional windings |
| DE102012003364A1 (en) * | 2012-02-22 | 2013-08-22 | Phoenix Contact Gmbh & Co. Kg | Planar transformer |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4201965A (en) * | 1978-06-29 | 1980-05-06 | Rca Corporation | Inductance fabricated on a metal base printed circuit board |
| DE3425153A1 (en) * | 1984-07-07 | 1986-01-16 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTRIC TRANSMITTER |
| US4864486A (en) * | 1988-07-29 | 1989-09-05 | International Business Machines Corporation | Plank and frame transformer |
| GB2252208B (en) * | 1991-01-24 | 1995-05-03 | Burr Brown Corp | Hybrid integrated circuit planar transformer |
| FI102791B (en) * | 1995-04-04 | 1999-02-15 | Nokia Telecommunications Oy | Inductive component |
| US5801602A (en) * | 1996-04-30 | 1998-09-01 | 3Com Corporation | Isolation and signal filter transformer |
| KR19980037987U (en) * | 1996-12-18 | 1998-09-15 | 조희재 | Through Hole Structure of Circuit Board |
-
1999
- 1999-10-08 KR KR1019990043474A patent/KR100339563B1/en not_active IP Right Cessation
-
2000
- 2000-10-05 GB GB0024401A patent/GB2355343A/en not_active Withdrawn
- 2000-10-05 MX MXPA00009775A patent/MXPA00009775A/en unknown
- 2000-10-08 CN CN001297309A patent/CN1292636A/en active Pending
- 2000-10-09 BR BR0004921-2A patent/BR0004921A/en not_active IP Right Cessation
- 2000-10-09 ID IDP20000876A patent/ID28061A/en unknown
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7154365B2 (en) | 2002-08-09 | 2006-12-26 | Samsung Electronics Co., Ltd. | Apparatus for fixing bobbin to printed circuit board for use in transformer |
| US8098123B2 (en) | 2003-07-16 | 2012-01-17 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US7849586B2 (en) | 2003-07-16 | 2010-12-14 | Marvell World Trade Ltd. | Method of making a power inductor with reduced DC current saturation |
| US7868725B2 (en) | 2003-07-16 | 2011-01-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US7882614B2 (en) | 2003-07-16 | 2011-02-08 | Marvell World Trade Ltd. | Method for providing a power inductor |
| US7987580B2 (en) | 2003-07-16 | 2011-08-02 | Marvell World Trade Ltd. | Method of fabricating conductor crossover structure for power inductor |
| US8028401B2 (en) | 2003-07-16 | 2011-10-04 | Marvell World Trade Ltd. | Method of fabricating a conducting crossover structure for a power inductor |
| US8035471B2 (en) | 2003-07-16 | 2011-10-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US8324872B2 (en) | 2004-03-26 | 2012-12-04 | Marvell World Trade, Ltd. | Voltage regulator with coupled inductors having high coefficient of coupling |
| CN101431868B (en) * | 2008-12-11 | 2012-03-21 | 田先平 | Production method of winding integrated multi-layer PCB |
| CN101770853B (en) * | 2008-12-26 | 2012-07-25 | Tdk株式会社 | Coil substrate structure, and switching power supply |
| CN102159037A (en) * | 2011-03-04 | 2011-08-17 | 聚信科技有限公司 | Core burying method for high-current magnetic device and printed circuit board manufacturing method |
| CN103766007A (en) * | 2011-05-24 | 2014-04-30 | 朱马技术有限公司 | Printed circuit board having a molded part and method for the production thereof |
| US10736214B2 (en) | 2011-05-24 | 2020-08-04 | Jumatech Gmbh | Printed circuit board having a molded part and method for the production thereof |
| CN102325429A (en) * | 2011-08-15 | 2012-01-18 | 深圳市核达中远通电源技术有限公司 | Method for bonding upper and lower magnetic cores of module power supply |
| CN102325429B (en) * | 2011-08-15 | 2016-09-14 | 深圳市核达中远通电源技术有限公司 | A kind of upper and lower magnetic core method of the modular power source that bonds |
| CN103874407B (en) * | 2012-12-17 | 2016-08-17 | 斯沃奇集团研究和开发有限公司 | The manufacture method of flexible portable electronic installation |
| CN103874407A (en) * | 2012-12-17 | 2014-06-18 | 斯沃奇集团研究和开发有限公司 | Method for manufacturing a flexible portable electronic device |
| CN103956250A (en) * | 2014-05-13 | 2014-07-30 | 华为技术有限公司 | Surface pasting type planar magnetic element and module thereof |
| CN103956250B (en) * | 2014-05-13 | 2017-01-25 | 华为技术有限公司 | Surface pasting type planar magnetic element and module thereof |
| CN104112576A (en) * | 2014-06-25 | 2014-10-22 | 东莞联宝光电科技有限公司 | Ultra-thin transformer |
| CN107027241A (en) * | 2016-02-02 | 2017-08-08 | 景硕科技股份有限公司 | Has the increasing layer carrying board structure of magnetic induction coil and soft board |
| CN107027241B (en) * | 2016-02-02 | 2019-07-02 | 景硕科技股份有限公司 | Has the increasing layer carrying board structure of magnetic induction coil and soft board |
| US10256028B2 (en) | 2016-03-31 | 2019-04-09 | Kinsus Interconnect Technology Corp. | Buildup board structure |
| CN109561580A (en) * | 2017-09-27 | 2019-04-02 | 欣兴电子股份有限公司 | Carrying board structure |
Also Published As
| Publication number | Publication date |
|---|---|
| ID28061A (en) | 2001-05-03 |
| GB0024401D0 (en) | 2000-11-22 |
| MXPA00009775A (en) | 2004-09-20 |
| KR100339563B1 (en) | 2002-06-03 |
| KR20010036449A (en) | 2001-05-07 |
| BR0004921A (en) | 2001-05-29 |
| GB2355343A (en) | 2001-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1292636A (en) | Printed circuit board with built-in electronic inductor and manufacturing method, and electronic inductor | |
| CN102460612B (en) | Magnetic components and methods of manufacturing same | |
| CN102460608B (en) | Magnetic components and methods of manufacturing same | |
| US8910373B2 (en) | Method of manufacturing an electromagnetic component | |
| US6717500B2 (en) | Surface mountable electronic component | |
| CN101241795B (en) | Inductor devices | |
| KR100672914B1 (en) | Leakage transformer | |
| US5319342A (en) | Flat transformer | |
| CN1499914A (en) | Structure for installing magnetic core winding on service | |
| JPH04113605A (en) | Multiple winding low-profile magnetic element device using sheet winding pattern | |
| JPH03283404A (en) | Laminated coil device provided with sheet coil connecting terminal base | |
| KR100785445B1 (en) | Low profile inductive component | |
| CN107305808B (en) | Filter inductor for high current application | |
| CN1316750A (en) | Coil for autoamtic erected | |
| KR101187489B1 (en) | Multi transformer and method of make it | |
| US4818960A (en) | Composite part and method of manufacturing same | |
| US6727794B2 (en) | Apparatus for establishing inductive coupling in an electrical circuit and method of manufacture therefor | |
| KR200279789Y1 (en) | Choke coil | |
| US7113066B2 (en) | Electronic inductive and capacitive component | |
| GB2272109A (en) | Laminated coiled conductive pattern and terminal arrangement | |
| KR200151873Y1 (en) | Troidal type choke coil | |
| JPH0513236A (en) | Coil-mounted electronic component board and its manufacture | |
| KR910006954B1 (en) | Picture information processor manufacture of composite parts | |
| JPH11111535A (en) | Surface mount inductor with perforated magnetic core | |
| JPH06251962A (en) | Flat transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |