US20140175625A1 - Semiconductor device including at least one element - Google Patents
Semiconductor device including at least one element Download PDFInfo
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- US20140175625A1 US20140175625A1 US14/189,304 US201414189304A US2014175625A1 US 20140175625 A1 US20140175625 A1 US 20140175625A1 US 201414189304 A US201414189304 A US 201414189304A US 2014175625 A1 US2014175625 A1 US 2014175625A1
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- chip
- semiconductor device
- redistribution layer
- component
- conductive traces
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- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/191—Disposition
- H01L2924/19101—Disposition of discrete passive components
- H01L2924/19105—Disposition of discrete passive components in a side-by-side arrangement on a common die mounting substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/30—Technical effects
- H01L2924/301—Electrical effects
- H01L2924/30107—Inductance
Definitions
- Embedded wafer level ball grid array (eWLB) technology expands on typical wafer level packaging technologies by providing the ability for adding additional surface area for interconnecting silicon components in a semiconductor device. Therefore, eWLB technology provides the possibility of fabricating a semiconductor device by combining both active and passive silicon components into a single module. Passive components, however, are typically very small or include geometries (e.g., small surface area with large height) unfavorable to the molding process used to package the semiconductor device. The small components may not adhere to the carrier foil during the molding process due to the forces applied to the small components by the molding process. This may lead the small components to slip and break contact with the carrier foil.
- eWLB Embedded wafer level ball grid array
- the semiconductor device includes a chip, at least one element electrically coupled to the chip, an adhesive at least partially covering the at least one element, and a mold material at least partially covering the chip and the adhesive.
- FIG. 1 illustrates a cross-sectional view of one embodiment of a semiconductor device.
- FIG. 2 illustrates a cross-sectional view of another embodiment of a semiconductor device.
- FIG. 3 illustrates a cross-sectional view of one embodiment of a carrier.
- FIG. 4 illustrates a cross-sectional view of one embodiment of the carrier and a double-sided adhesive foil.
- FIG. 5A illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, elements, and semiconductor chips.
- FIG. 5B illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, solder elements, and semiconductor chips.
- FIG. 6A illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the elements, the semiconductor chips, and an adhesive material.
- FIG. 6B illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the solder elements, the semiconductor chips, and an adhesive material.
- FIG. 7A illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the elements, the semiconductor chips, the adhesive material, and a molding material.
- FIG. 7B illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the solder elements, the semiconductor chips, the adhesive material, and a molding material.
- FIG. 8A illustrates a cross-sectional view of one embodiment of the elements, the semiconductor chips, the adhesive material, and the molding material after the release of the carrier and the double-sided adhesive foil.
- FIG. 8B illustrates a cross-sectional view of one embodiment of the solder elements, the semiconductor chips, the adhesive material, and the molding material after release of the carrier and the double-sided adhesive foil.
- FIG. 9A illustrates a cross-sectional view one embodiment of multiple semiconductor devices prior to singulation.
- FIG. 9B illustrates a cross-sectional view of another embodiment of multiple semiconductor devices prior to singulation.
- FIG. 1 illustrates a cross-sectional view of one embodiment of a semiconductor device 100 .
- Semiconductor device 100 is fabricated using a wafer level packaging process.
- Semiconductor device 100 includes a semiconductor chip 106 , at least one element 108 , an adhesive material 114 , a molding material 110 , a redistribution layer 128 , and solder balls 112 .
- Adhesive material 114 covers at least a portion of each element 108 .
- Molding material 110 encapsulates at least one side of each semiconductor chip 106 and at least one side of each element 108 and adhesive material 114 .
- Adhesive material 114 provides stability to elements 108 during the molding process so that elements 108 are not shifted, misplaced, or tilted after the molding process.
- adhesive material 114 includes Durimide, a polyimide, an elastomer, a thermoplastic, an epoxy, or another suitable adhesive.
- Semiconductor chip 106 has a first face 105 and an opposing second face 107 .
- Semiconductor chip 106 includes contacts 109 with an exposed surface on the same plane as opposing second face 107 .
- Redistribution layer 128 also has a first face 124 and an opposing second face 122 .
- First face 124 of redistribution layer 128 is attached along second face 107 of chip 106 .
- each element 108 is a passive component.
- each element 108 includes a resistor, a capacitor, an inductor, a conductor, a solder element, a conductive sphere, or another suitable passive component.
- the volume of each element 108 is less than the volume of semiconductor chip 106 by at least a factor of two.
- the height of each element 108 is greater than the height of chip 106 in the direction perpendicular to redistribution layer 128 .
- Redistribution layer 128 includes insulating material 116 and conductive traces 118 , which electrically couple semiconductor chip 106 to at least one element 108 . Further, conductive spheres or solder balls 112 can be electrically coupled to conductive traces 118 at second face 124 of redistribution layer 128 . Conductive traces 118 include Cu or other suitable conductive material or conductive material stack. Insulating material 116 includes a polyimide, an epoxy, or another suitable dielectric material.
- FIG. 2 illustrates a cross-sectional view of another embodiment of a semiconductor device 120 .
- Semiconductor device 120 is similar to semiconductor device 100 previously described and illustrated with reference to FIG. 1 , except that elements 108 are replaced with conductive spheres or solder elements or balls 138 in semiconductor device 120 .
- adhesive material 114 provides stability to solder elements 138 during the molding process so that solder elements 138 are not shifted or misplaced after the molding process.
- Solder elements 138 can be used for 3D-contacts from the front-side to the back-side of the package.
- FIGS. 3 through 9B illustrate embodiments of a process for fabricating a semiconductor device.
- FIGS. 5A , 6 A, 7 A, 8 A, and 9 A illustrate one embodiment for fabricating a semiconductor device, such as semiconductor device 100 previously described and illustrated with reference to FIG. 1 .
- FIGS. 5B , 6 B, 7 B, 8 B, and 9 B illustrate another embodiment for fabricating a semiconductor device, such as semiconductor device 120 previously described and illustrated with reference to FIG. 2 .
- FIG. 3 illustrates a cross-sectional view of one embodiment of a carrier 102 .
- Carrier 102 includes a metal, a polymer, silicon, or another suitable material.
- FIG. 4 illustrates a cross-sectional view of one embodiment of carrier 102 and a double-sided adhesive foil 104 .
- a double-sided, releasable, adhesive foil 104 is laminated to carrier 102 or applied to carrier 102 using another suitable technique. In other embodiments, other suitable adhesives are used in place of adhesive foil 104 .
- FIG. 5A illustrates a cross-sectional view of one embodiment of carrier 102 , double-sided adhesive foil 104 , elements 108 , and semiconductor chips 106 .
- Each element 108 and each semiconductor chip 106 is placed on adhesive foil 104 .
- at least two semiconductor chips 106 and at least two elements 108 are placed on adhesive foil 104 .
- the area of the surface of each element 108 at the interface to adhesive foil 104 is less than the area of the surface of semiconductor chip 106 at the interface to adhesive foil 104 .
- FIG. 5B illustrates a cross-sectional view of one embodiment of carrier 102 , double-sided adhesive foil 104 , solder elements 138 , and semiconductor chips 106 .
- Each semiconductor chip 106 and each solder element 138 is placed on adhesive foil 104 .
- at least two semiconductor chips 106 and at least two solder elements 138 are placed on adhesive foil 104 . Due to the non-planar or spherical form of solder elements 138 , solder elements 138 have less surface area than semiconductor chips 106 for attachment to adhesive foil 104 .
- FIG. 6A illustrates a cross-sectional view of one embodiment of carrier 102 , double-sided adhesive foil 104 , elements 108 , semiconductor chips 106 , and adhesive material 114 .
- a dispensing needle 126 dispenses an adhesive material 114 to adhere each element 108 to adhesive foil 104 .
- Adhesive material 114 includes an epoxy, a thermoplastic, a silicone, a polyimide, an elastomer, or another suitable material.
- Adhesive material 114 at least partially covers each element 108 and provides improved attachment of elements 108 to adhesive foil 104 prior to molding.
- a printing process, a jetting process, or another suitable process is used to apply adhesive material 114 over or at each element 108 .
- Adhesive material 114 can then be cured by using any suitable form of energy (e.g., thermal, chemical) if a curing step is needed for the adhesive material.
- semiconductor chip 106 is placed in close proximity to elements 108 ; thereby adhesive material 114 is also applied to at least one surface of semiconductor chip 106 .
- adhesive material 114 is applied to at least a portion of adhesive foil 104 before elements 108 are placed on adhesive foil 104 . Elements 108 are then placed into adhesive material 114 .
- FIG. 6B illustrates a cross-sectional view of one embodiment of carrier 102 , double-sided adhesive foil 104 , solder elements 138 , semiconductor chips 106 , and adhesive material 114 .
- a dispensing needle dispenses an adhesive material 114 to adhere each solder element 138 to adhesive foil 104 .
- Adhesive material 114 includes an epoxy or another suitable material. Adhesive material 114 at least partially covers each solder element 138 and provides improved attachment of solder elements 138 to adhesive foil 104 prior to molding.
- a printing process, a jetting process, or another suitable process is used to apply adhesive material 114 over or at each solder element 138 .
- Adhesive material 114 can then be cured by using any suitable form of energy (e.g., thermal, chemical) if a curing step is needed for the adhesive material.
- semiconductor chip 106 is placed in close proximity to solder elements 138 ; thereby adhesive material 114 is also applied to at least one surface of semiconductor chip 106 .
- adhesive material 114 is applied to at least a portion of adhesive foil 104 before solder elements 138 are placed on adhesive foil 104 . Solder elements 138 are then placed into adhesive material 114 .
- FIG. 7A illustrates a cross-sectional view of one embodiment of carrier 102 , double-sided adhesive foil 104 , elements 108 , semiconductor chips 106 , adhesive material 114 , and molding material 110 .
- Adhesive material 114 , elements 108 , and semiconductor chips 106 are at least partially encapsulated by molding material 110 .
- the entire encapsulation process is performed by mold encapsulation.
- Carrier 102 is placed in a molding tool.
- a liquid mold compound having a high viscosity is dispensed in the center of carrier 102 where semiconductor chips 106 and elements 108 have been placed.
- the top of the molding tool is closed, causing the liquid mold compound to flow from the center to the edges of the molding tool. Flow of the mold compound applies forces on semiconductor chips 106 and elements 108 . Due to adhesive material 114 , however, elements 108 do not shift or tilt in response to the forces.
- FIG. 7B illustrates a cross-sectional view of one embodiment of carrier 102 , double-sided adhesive foil 104 , solder elements 138 , semiconductor chips 106 , adhesive material 114 , and molding material 110 .
- Adhesive material 114 , solder elements 138 , and semiconductor chips 106 are at least partially encapsulated by molding material 110 using a similar process as described with reference to FIG. 7A . Due to adhesive material 114 , solder elements 138 do not shift during the molding process.
- FIG. 8A illustrates a cross-sectional view of one embodiment of elements 108 , semiconductor chips 106 , adhesive material 114 , and molding material 110 after release of carrier 102 and double-sided adhesive foil 104 .
- the release of adhesive foil 104 and carrier 102 is completed after application of molding material 110 .
- One surface of each element 108 and each semiconductor chip 106 is exposed where adhesive foil 104 was previously attached.
- FIG. 8B illustrates a cross-sectional view of one embodiment of solder elements 138 , semiconductor chips 106 , adhesive material 114 , and molding material 110 after release of carrier 102 and double-sided adhesive foil 104 . A surface of each solder element 138 and each semiconductor chip 106 is exposed where adhesive foil 104 was previously attached.
- FIG. 9A illustrates a cross-sectional view of one embodiment of multiple semiconductor devices prior to singulation.
- a redistribution layer 128 is fabricated.
- Redistribution layer 128 includes conductive traces 118 formed in a conductive layer.
- Conductive traces 118 on first face 124 of redistribution layer 128 are electrically coupled to and directly contact semiconductor chips 106 and/or elements 108 .
- Redistribution layer 128 also includes insulating material 116 surrounding conductive traces 118 .
- Conductive spheres or solder balls 112 are electrically coupled to conductive traces 118 on second face 122 of redistribution layer 128 .
- the semiconductor devices are then separated from one another.
- the dashed line in FIG. 9A indicates where molding material 110 and redistribution layer 128 are cut to separate the semiconductor devices.
- Each semiconductor device includes a semiconductor chip 106 and at least one element 108 .
- the semiconductor devices are separated by sawing, etching, or other suitable method to provide semiconductor devices 100 as previously described and illustrated with reference to FIG. 1 .
- FIG. 9B illustrates a cross-sectional view of another embodiment of multiple semiconductor devices prior to singulation.
- a redistribution layer 128 and conductive spheres or solder balls 112 are fabricated using a similar process as previously described with reference to FIG. 9A .
- the dashed line in FIG. 9B indicates where molding material 110 and redistribution layer 128 are cut to separate the semiconductor devices.
- Each semiconductor device includes a semiconductor chip 106 and at least one solder element 138 .
- the semiconductor devices are separated by sawing, etching, or other suitable method to provide semiconductor devices 120 as previously described and illustrated with reference to FIG. 2 .
- Embodiments provide semiconductor devices using eWLB technology. Elements and/or solder balls are placed on adhesive foil in addition to semiconductor chips. Adhesive material is deposited over or at the elements and/or solder balls to provide increased stability and decreased displacement of the elements and/or solder balls during the molding process. After the adhesive material adheres to the elements and/or solder balls and the adhesive foil, the semiconductor chips, elements and/or solder balls, and adhesive material are encapsulated in mold material.
Abstract
A semiconductor device includes a chip, at least one element electrically coupled to the chip, an adhesive at least partially covering the at least one element, and a mold material at least partially covering the chip and the adhesive.
Description
- This Utility Patent Application is a continuation application of U.S. Ser. No. 12/048,602 filed Mar. 14, 2008, which is herein incorporated by reference.
- Embedded wafer level ball grid array (eWLB) technology expands on typical wafer level packaging technologies by providing the ability for adding additional surface area for interconnecting silicon components in a semiconductor device. Therefore, eWLB technology provides the possibility of fabricating a semiconductor device by combining both active and passive silicon components into a single module. Passive components, however, are typically very small or include geometries (e.g., small surface area with large height) unfavorable to the molding process used to package the semiconductor device. The small components may not adhere to the carrier foil during the molding process due to the forces applied to the small components by the molding process. This may lead the small components to slip and break contact with the carrier foil.
- For these and other reasons, there is a need for the present invention.
- One embodiment provides a semiconductor device. The semiconductor device includes a chip, at least one element electrically coupled to the chip, an adhesive at least partially covering the at least one element, and a mold material at least partially covering the chip and the adhesive.
- The accompanying drawings are included to provide a further understanding of embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and together with the description serve to explain principles of embodiments. Other embodiments and many of the intended advantages of embodiments will be readily appreciated as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale relative to each other. Like reference numerals designate corresponding similar parts.
-
FIG. 1 illustrates a cross-sectional view of one embodiment of a semiconductor device. -
FIG. 2 illustrates a cross-sectional view of another embodiment of a semiconductor device. -
FIG. 3 illustrates a cross-sectional view of one embodiment of a carrier. -
FIG. 4 illustrates a cross-sectional view of one embodiment of the carrier and a double-sided adhesive foil. -
FIG. 5A illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, elements, and semiconductor chips. -
FIG. 5B illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, solder elements, and semiconductor chips. -
FIG. 6A illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the elements, the semiconductor chips, and an adhesive material. -
FIG. 6B illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the solder elements, the semiconductor chips, and an adhesive material. -
FIG. 7A illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the elements, the semiconductor chips, the adhesive material, and a molding material. -
FIG. 7B illustrates a cross-sectional view of one embodiment of the carrier, the double-sided adhesive foil, the solder elements, the semiconductor chips, the adhesive material, and a molding material. -
FIG. 8A illustrates a cross-sectional view of one embodiment of the elements, the semiconductor chips, the adhesive material, and the molding material after the release of the carrier and the double-sided adhesive foil. -
FIG. 8B illustrates a cross-sectional view of one embodiment of the solder elements, the semiconductor chips, the adhesive material, and the molding material after release of the carrier and the double-sided adhesive foil. -
FIG. 9A illustrates a cross-sectional view one embodiment of multiple semiconductor devices prior to singulation. -
FIG. 9B illustrates a cross-sectional view of another embodiment of multiple semiconductor devices prior to singulation. - In the following Detailed Description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as “top,” “bottom,” “front,” “back,” “leading,” “trailing,” etc., is used with reference to the orientation of the Figure(s) being described. Because components of embodiments can be positioned in a number of different orientations, the directional terminology is used for purposes of illustration and is in no way limiting. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.
- It is to be understood that the features of the various exemplary embodiments described herein may be combined with each other, unless specifically noted otherwise.
-
FIG. 1 illustrates a cross-sectional view of one embodiment of asemiconductor device 100.Semiconductor device 100 is fabricated using a wafer level packaging process.Semiconductor device 100 includes asemiconductor chip 106, at least oneelement 108, anadhesive material 114, amolding material 110, aredistribution layer 128, andsolder balls 112.Adhesive material 114 covers at least a portion of eachelement 108. Moldingmaterial 110 encapsulates at least one side of eachsemiconductor chip 106 and at least one side of eachelement 108 andadhesive material 114.Adhesive material 114 provides stability toelements 108 during the molding process so thatelements 108 are not shifted, misplaced, or tilted after the molding process. In one embodiment,adhesive material 114 includes Durimide, a polyimide, an elastomer, a thermoplastic, an epoxy, or another suitable adhesive. -
Semiconductor chip 106 has afirst face 105 and an opposingsecond face 107.Semiconductor chip 106 includescontacts 109 with an exposed surface on the same plane as opposingsecond face 107.Redistribution layer 128 also has afirst face 124 and an opposingsecond face 122.First face 124 ofredistribution layer 128 is attached alongsecond face 107 ofchip 106. - In one embodiment, each
element 108 is a passive component. In one embodiment, eachelement 108 includes a resistor, a capacitor, an inductor, a conductor, a solder element, a conductive sphere, or another suitable passive component. In one embodiment, the volume of eachelement 108 is less than the volume ofsemiconductor chip 106 by at least a factor of two. In another embodiment, the height of eachelement 108 is greater than the height ofchip 106 in the direction perpendicular toredistribution layer 128. -
Redistribution layer 128 includes insulatingmaterial 116 andconductive traces 118, which electricallycouple semiconductor chip 106 to at least oneelement 108. Further, conductive spheres orsolder balls 112 can be electrically coupled toconductive traces 118 atsecond face 124 ofredistribution layer 128. Conductive traces 118 include Cu or other suitable conductive material or conductive material stack. Insulatingmaterial 116 includes a polyimide, an epoxy, or another suitable dielectric material. -
FIG. 2 illustrates a cross-sectional view of another embodiment of asemiconductor device 120.Semiconductor device 120 is similar tosemiconductor device 100 previously described and illustrated with reference toFIG. 1 , except thatelements 108 are replaced with conductive spheres or solder elements orballs 138 insemiconductor device 120. In this embodiment,adhesive material 114 provides stability to solderelements 138 during the molding process so thatsolder elements 138 are not shifted or misplaced after the molding process.Solder elements 138 can be used for 3D-contacts from the front-side to the back-side of the package. - The following
FIGS. 3 through 9B illustrate embodiments of a process for fabricating a semiconductor device.FIGS. 5A , 6A, 7A, 8A, and 9A illustrate one embodiment for fabricating a semiconductor device, such assemiconductor device 100 previously described and illustrated with reference toFIG. 1 .FIGS. 5B , 6B, 7B, 8B, and 9B illustrate another embodiment for fabricating a semiconductor device, such assemiconductor device 120 previously described and illustrated with reference toFIG. 2 . -
FIG. 3 illustrates a cross-sectional view of one embodiment of acarrier 102.Carrier 102 includes a metal, a polymer, silicon, or another suitable material. -
FIG. 4 illustrates a cross-sectional view of one embodiment ofcarrier 102 and a double-sidedadhesive foil 104. A double-sided, releasable,adhesive foil 104 is laminated tocarrier 102 or applied tocarrier 102 using another suitable technique. In other embodiments, other suitable adhesives are used in place ofadhesive foil 104. -
FIG. 5A illustrates a cross-sectional view of one embodiment ofcarrier 102, double-sidedadhesive foil 104,elements 108, andsemiconductor chips 106. Eachelement 108 and eachsemiconductor chip 106 is placed onadhesive foil 104. In one embodiment, at least twosemiconductor chips 106 and at least twoelements 108 are placed onadhesive foil 104. In one embodiment, the area of the surface of eachelement 108 at the interface toadhesive foil 104 is less than the area of the surface ofsemiconductor chip 106 at the interface toadhesive foil 104. -
FIG. 5B illustrates a cross-sectional view of one embodiment ofcarrier 102, double-sidedadhesive foil 104,solder elements 138, andsemiconductor chips 106. Eachsemiconductor chip 106 and eachsolder element 138 is placed onadhesive foil 104. In one embodiment, at least twosemiconductor chips 106 and at least twosolder elements 138 are placed onadhesive foil 104. Due to the non-planar or spherical form ofsolder elements 138,solder elements 138 have less surface area thansemiconductor chips 106 for attachment toadhesive foil 104. -
FIG. 6A illustrates a cross-sectional view of one embodiment ofcarrier 102, double-sidedadhesive foil 104,elements 108,semiconductor chips 106, andadhesive material 114. In one embodiment, a dispensingneedle 126 dispenses anadhesive material 114 to adhere eachelement 108 toadhesive foil 104.Adhesive material 114 includes an epoxy, a thermoplastic, a silicone, a polyimide, an elastomer, or another suitable material.Adhesive material 114 at least partially covers eachelement 108 and provides improved attachment ofelements 108 toadhesive foil 104 prior to molding. In another embodiment, a printing process, a jetting process, or another suitable process is used to applyadhesive material 114 over or at eachelement 108. -
Adhesive material 114 can then be cured by using any suitable form of energy (e.g., thermal, chemical) if a curing step is needed for the adhesive material. In one embodiment,semiconductor chip 106 is placed in close proximity toelements 108; therebyadhesive material 114 is also applied to at least one surface ofsemiconductor chip 106. In another embodiment,adhesive material 114 is applied to at least a portion ofadhesive foil 104 beforeelements 108 are placed onadhesive foil 104.Elements 108 are then placed intoadhesive material 114. -
FIG. 6B illustrates a cross-sectional view of one embodiment ofcarrier 102, double-sidedadhesive foil 104,solder elements 138,semiconductor chips 106, andadhesive material 114. In one embodiment, a dispensing needle dispenses anadhesive material 114 to adhere eachsolder element 138 toadhesive foil 104.Adhesive material 114 includes an epoxy or another suitable material.Adhesive material 114 at least partially covers eachsolder element 138 and provides improved attachment ofsolder elements 138 toadhesive foil 104 prior to molding. In another embodiment, a printing process, a jetting process, or another suitable process is used to applyadhesive material 114 over or at eachsolder element 138. -
Adhesive material 114 can then be cured by using any suitable form of energy (e.g., thermal, chemical) if a curing step is needed for the adhesive material. In one embodiment,semiconductor chip 106 is placed in close proximity to solderelements 138; therebyadhesive material 114 is also applied to at least one surface ofsemiconductor chip 106. In another embodiment,adhesive material 114 is applied to at least a portion ofadhesive foil 104 beforesolder elements 138 are placed onadhesive foil 104.Solder elements 138 are then placed intoadhesive material 114. -
FIG. 7A illustrates a cross-sectional view of one embodiment ofcarrier 102, double-sidedadhesive foil 104,elements 108,semiconductor chips 106,adhesive material 114, andmolding material 110.Adhesive material 114,elements 108, andsemiconductor chips 106 are at least partially encapsulated bymolding material 110. In one embodiment, the entire encapsulation process is performed by mold encapsulation.Carrier 102 is placed in a molding tool. A liquid mold compound having a high viscosity is dispensed in the center ofcarrier 102 wheresemiconductor chips 106 andelements 108 have been placed. The top of the molding tool is closed, causing the liquid mold compound to flow from the center to the edges of the molding tool. Flow of the mold compound applies forces onsemiconductor chips 106 andelements 108. Due toadhesive material 114, however,elements 108 do not shift or tilt in response to the forces. -
FIG. 7B illustrates a cross-sectional view of one embodiment ofcarrier 102, double-sidedadhesive foil 104,solder elements 138,semiconductor chips 106,adhesive material 114, andmolding material 110.Adhesive material 114,solder elements 138, andsemiconductor chips 106 are at least partially encapsulated bymolding material 110 using a similar process as described with reference toFIG. 7A . Due toadhesive material 114,solder elements 138 do not shift during the molding process. -
FIG. 8A illustrates a cross-sectional view of one embodiment ofelements 108,semiconductor chips 106,adhesive material 114, andmolding material 110 after release ofcarrier 102 and double-sidedadhesive foil 104. The release ofadhesive foil 104 andcarrier 102 is completed after application ofmolding material 110. One surface of eachelement 108 and eachsemiconductor chip 106 is exposed whereadhesive foil 104 was previously attached. -
FIG. 8B illustrates a cross-sectional view of one embodiment ofsolder elements 138,semiconductor chips 106,adhesive material 114, andmolding material 110 after release ofcarrier 102 and double-sidedadhesive foil 104. A surface of eachsolder element 138 and eachsemiconductor chip 106 is exposed whereadhesive foil 104 was previously attached. -
FIG. 9A illustrates a cross-sectional view of one embodiment of multiple semiconductor devices prior to singulation. Aredistribution layer 128 is fabricated.Redistribution layer 128 includesconductive traces 118 formed in a conductive layer. Conductive traces 118 onfirst face 124 ofredistribution layer 128 are electrically coupled to and directly contactsemiconductor chips 106 and/orelements 108.Redistribution layer 128 also includes insulatingmaterial 116 surrounding conductive traces 118. Conductive spheres orsolder balls 112 are electrically coupled toconductive traces 118 onsecond face 122 ofredistribution layer 128. - The semiconductor devices are then separated from one another. The dashed line in
FIG. 9A indicates wheremolding material 110 andredistribution layer 128 are cut to separate the semiconductor devices. Each semiconductor device includes asemiconductor chip 106 and at least oneelement 108. The semiconductor devices are separated by sawing, etching, or other suitable method to providesemiconductor devices 100 as previously described and illustrated with reference toFIG. 1 . -
FIG. 9B illustrates a cross-sectional view of another embodiment of multiple semiconductor devices prior to singulation. Aredistribution layer 128 and conductive spheres orsolder balls 112 are fabricated using a similar process as previously described with reference toFIG. 9A . The dashed line inFIG. 9B indicates wheremolding material 110 andredistribution layer 128 are cut to separate the semiconductor devices. Each semiconductor device includes asemiconductor chip 106 and at least onesolder element 138. The semiconductor devices are separated by sawing, etching, or other suitable method to providesemiconductor devices 120 as previously described and illustrated with reference toFIG. 2 . - Embodiments provide semiconductor devices using eWLB technology. Elements and/or solder balls are placed on adhesive foil in addition to semiconductor chips. Adhesive material is deposited over or at the elements and/or solder balls to provide increased stability and decreased displacement of the elements and/or solder balls during the molding process. After the adhesive material adheres to the elements and/or solder balls and the adhesive foil, the semiconductor chips, elements and/or solder balls, and adhesive material are encapsulated in mold material.
- Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that a variety of alternate and/or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the present invention. This application is intended to cover any adaptations or variations of the specific embodiments discussed herein. Therefore, it is intended that this invention be limited only by the claims and the equivalents thereof.
Claims (20)
1. A semiconductor device comprising:
a chip;
at least one element electrically coupled to the chip;
an encapsulation material at least partially covering the chip, the encapsulation material directly contacting the chip; and
a planar redistribution layer consisting of one or more conductive traces and an insulating material, one of the conductive traces contacting the chip and the at least one element,
wherein the at least one element is laterally adjacent to the chip along a direction that is in a plane of an active surface of the chip.
2. The semiconductor device of claim 1 , wherein the at least one element comprises one of a resistor, a capacitor, an inductor, a conductor, a solder element, and a conductive sphere.
3. The semiconductor device of claim 1 , further comprising:
an array of solder elements electrically coupled to the redistribution layer.
4. The semiconductor device of claim 1 , further comprising:
a redistribution layer electrically coupling the chip to the at least one element; and
an array of conductive spheres electrically coupled to the redistribution layer.
5. The semiconductor device of claim 1 , wherein a volume of the at least one element is less than a volume of the chip by at least a factor of two.
6. The semiconductor device of claim 1 , further comprising:
wherein in a direction perpendicular to the redistribution layer, a height of the at least one element is greater than a height of the chip.
7. The semiconductor device of claim 6 , including a redistribution layer electrically coupling the chip to the at least one element.
8. The semiconductor device of claim 1 , wherein one of the conductive traces directly contacts the semiconductor die and the component.
9. The semiconductor device of claim 1 , wherein one of conductive traces directly connects the semiconductor die and the component.
10. A wafer level package comprising:
a semiconductor die;
a component;
a planar redistribution layer consisting of one or more conductive traces and an insulating material, one of the conductive traces contacting the semiconductor die and the component; and
a material encapsulating at least one side of the semiconductor die and at least one side of the component,
wherein the component is laterally adjacent to the semiconductor die with respect to the redistribution layer.
11. The package of claim 10 , wherein the component comprises one of a resistor, a capacitor, an inductor, a conductor, a solder element, and a conductive sphere.
12. The package of claim 10 , wherein a height of the component perpendicular to the redistribution layer is greater than a width of the component.
13. The package of claim 10 , further comprising:
a plurality of solder balls electrically coupled to the redistribution layer.
14. The package of claim 10 , further comprising:
an adhesive at least partially covering the at least one element; and
wherein the encapsulating material covers at least one side of the component and the adhesive material.
15. The package of claim 10 , wherein one of the conductive traces directly contacts the semiconductor die and the component.
16. A semiconductor device comprising:
a chip;
at least one element electrically coupled to the chip;
an encapsulant at least partially covering the chip, the encapsulant directly contacting the chip; and
a planar redistribution layer consisting of conductive traces and an insulating material, one of the conductive traces contacting the chip and the at least one element,
wherein the at least one element is laterally adjacent to the chip along a direction that is in a plane of an active surface of the chip.
17. The semiconductor device of claim 16 , further comprising:
an array of solder elements electrically coupled to the redistribution layer.
18. The semiconductor device of claim 16 , further comprising:
a redistribution layer electrically coupling the chip to the at least one element; and
an array of conductive spheres electrically coupled to the redistribution layer.
19. The semiconductor device of claim 16 , wherein a volume of the at least one element is less than a volume of the chip by at least a factor of two.
20. The semiconductor device of claim 16 , further comprising:
wherein in a direction perpendicular to the redistribution layer, a height of the at least one element is greater than a height of the chip.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/189,304 US20140175625A1 (en) | 2008-03-14 | 2014-02-25 | Semiconductor device including at least one element |
US15/226,260 US9984900B2 (en) | 2008-03-14 | 2016-08-02 | Semiconductor device including at least one element |
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US12/048,602 US8659154B2 (en) | 2008-03-14 | 2008-03-14 | Semiconductor device including adhesive covered element |
US14/189,304 US20140175625A1 (en) | 2008-03-14 | 2014-02-25 | Semiconductor device including at least one element |
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US12/048,602 Continuation US8659154B2 (en) | 2008-03-14 | 2008-03-14 | Semiconductor device including adhesive covered element |
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US14/189,304 Abandoned US20140175625A1 (en) | 2008-03-14 | 2014-02-25 | Semiconductor device including at least one element |
US15/226,260 Expired - Fee Related US9984900B2 (en) | 2008-03-14 | 2016-08-02 | Semiconductor device including at least one element |
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US15/226,260 Expired - Fee Related US9984900B2 (en) | 2008-03-14 | 2016-08-02 | Semiconductor device including at least one element |
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Cited By (1)
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US9711492B2 (en) | 2014-12-09 | 2017-07-18 | Intel Corporation | Three dimensional structures within mold compound |
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TWI528514B (en) * | 2009-08-20 | 2016-04-01 | 精材科技股份有限公司 | Chip package and fabrication method thereof |
EP2337068A1 (en) * | 2009-12-18 | 2011-06-22 | Nxp B.V. | Pre-soldered leadless package |
US9117682B2 (en) * | 2011-10-11 | 2015-08-25 | Taiwan Semiconductor Manufacturing Company, Ltd. | Methods of packaging semiconductor devices and structures thereof |
US8980687B2 (en) * | 2012-02-08 | 2015-03-17 | Infineon Technologies Ag | Semiconductor device and method of manufacturing thereof |
US9312193B2 (en) | 2012-11-09 | 2016-04-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Stress relief structures in package assemblies |
US10163687B2 (en) | 2015-05-22 | 2018-12-25 | Qualcomm Incorporated | System, apparatus, and method for embedding a 3D component with an interconnect structure |
KR101982056B1 (en) * | 2017-10-31 | 2019-05-24 | 삼성전기주식회사 | Fan-out semiconductor package module |
US10546817B2 (en) * | 2017-12-28 | 2020-01-28 | Intel IP Corporation | Face-up fan-out electronic package with passive components using a support |
CN110600432A (en) * | 2019-05-27 | 2019-12-20 | 华为技术有限公司 | Packaging structure and mobile terminal |
CN110164839B (en) * | 2019-05-27 | 2020-01-31 | 广东工业大学 | Fan-out type packaging structure and method for embedding and transferring high-density lines |
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Also Published As
Publication number | Publication date |
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DE102009011975B4 (en) | 2018-04-19 |
DE102009011975A1 (en) | 2009-09-24 |
US20160343616A1 (en) | 2016-11-24 |
US9984900B2 (en) | 2018-05-29 |
US8659154B2 (en) | 2014-02-25 |
US20090230553A1 (en) | 2009-09-17 |
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