PATENT DOCUMENT

Publication Number: US-9685425-B2
Application Number: US-201414165982-A
Country: US
Kind Code: B2

Title: Integrated circuit package

Abstract:
An integrated circuit package may have a package substrate with a surface to which an integrated circuit die is soldered. A first set of contacts on the package substrate may mate with contacts on the integrated circuit die. Solder may be used to connect the integrated circuit die to the first set of contacts. A covering material such as a plastic mold cap may be used to cover the integrated circuit die and the first set of contacts. The mold cap may have a rectangular shape or other footprint. A rectangular ring-shaped border region or a border region of other shapes may surround the mold cap and may be free of mold cap material. A second set of contacts on the package substrate may be formed on the surface in the border region.

Claims:
What is claimed is: 
     
       1. Apparatus, comprising:
 a printed circuit board having first and second opposing surfaces and first and second separate, laterally adjacent openings that extend from the first surface to the second surface; 
 a first integrated circuit package including a first package substrate that is soldered to the first surface of the printed circuit board, a first integrated circuit die mounted on a surface the first package substrate, and a first mold cap that covers the first integrated circuit die and that extends into the first opening, the first mold cap having a non-rectangular perimeter with at least five sides, and the surface of the first package substrate having a region that is covered by the first mold cap and having a non-rectangular uncovered border region that surrounds the non-rectangular perimeter of the mold cap and that is uncovered by the first mold cap; and 
 a second integrated circuit package including a second package substrate that is soldered to the second surface of the printed circuit board, a second integrated circuit die mounted on the second package substrate, and a second mold cap that covers the second integrated circuit die and that extends into the second opening. 
 
     
     
       2. The apparatus defined in  claim 1  wherein the first integrated circuit die has first contacts, wherein the first package substrate has a surface with mating second contacts, and wherein solder is used to solder the first contacts to the second contacts. 
     
     
       3. The apparatus defined in  claim 1  further comprising another integrated circuit die that is mounted on the first package substrate laterally adjacent to the first integrated circuit die. 
     
     
       4. The apparatus defined in  claim 2  further comprising an additional integrated circuit die stacked with the first integrated circuit die under the first mold cap. 
     
     
       5. The apparatus defined in  claim 2  wherein the printed circuit board has printed circuit board contacts, wherein the first integrated circuit package has package substrate contacts on the first package substrate, and wherein the printed circuit board contacts are soldered to the integrated circuit package contacts. 
     
     
       6. The apparatus defined in  claim 4  further comprising wire bonds that connect the additional integrated circuit die to pads on the surface. 
     
     
       7. The apparatus defined in  claim 5  wherein the package substrate contacts are formed in the non-rectangular uncovered border region. 
     
     
       8. The apparatus defined in  claim 7  wherein the package substrate contacts comprise metal pads on the surface, the apparatus further comprising components mounted on an opposing surface of the first package substrate. 
     
     
       9. An apparatus, comprising:
 a printed circuit having an opening; and 
 an integrated circuit package having a package substrate with a surface and an integrated circuit die that is soldered to first contacts on the surface, wherein the integrated circuit package has second contacts on the surface, wherein the surface has a non-rectangular region defined by a perimeter having at least five sides and that has covering material that covers the integrated circuit die and the first contacts, wherein the surface has a non-rectangular uncovered border region that surrounds the perimeter of the non-rectangular region and that is free of covering material, wherein the second contacts are in the non-rectangular uncovered border region, and wherein the integrated circuit package is mounted to the printed circuit with the surface of the package substrate facing the printed circuit and with the covering material protruding into the opening. 
 
     
     
       10. The apparatus defined in  claim 9  wherein the printed circuit comprises a rigid printed circuit board with printed circuit board contacts and wherein the second contacts are soldered to the printed circuit board contacts. 
     
     
       11. The apparatus defined in  claim 9  wherein non-rectangular region is L-shaped, and wherein the perimeter of the L-shaped non-rectangular region has six sides. 
     
     
       12. The apparatus defined in  claim 9  wherein the second contacts in the non-rectangular uncovered border region are formed along each of the at least five sides of the perimeter of the non-rectangular region. 
     
     
       13. The apparatus defined in  claim 10  wherein the covering material comprises a plastic mold cap. 
     
     
       14. The apparatus defined in  claim 13  further comprising an additional integrated circuit die that is covered by the plastic mold cap. 
     
     
       15. The apparatus defined in  claim 14  wherein the additional integrated circuit die is stacked on the integrated circuit die and is wire bonded to the package substrate and wherein the package substrate comprises multiple dielectric layers and metal traces. 
     
     
       16. The apparatus defined in  claim 14  wherein the additional integrated circuit die is soldered to the package substrate at a location that is laterally adjacent to the integrated circuit die. 
     
     
       17. The apparatus defined in  claim 14  wherein the package substrate has opposing first and second sides, wherein the surface is located on the first side, and wherein the apparatus further comprises electrical components soldered to the second side of the package substrate. 
     
     
       18. Apparatus, comprising:
 a printed circuit board having first and second opposing surfaces and first and second separate, laterally adjacent openings that extend from the first surface to the second surface; 
 a first integrated circuit package including a first package substrate that is soldered to the first surface of the printed circuit board, a first integrated circuit die mounted on the first package substrate, and a first mold cap that covers the first integrated circuit die and that extends into the first opening; 
 a second integrated circuit package including a second package substrate that is soldered to the first surface of the printed circuit board, a second integrated circuit die mounted on the second package substrate, and a second mold cap that covers the second integrated circuit die and that extends into the second opening; 
 an electronic device housing in which the printed circuit board, the first integrated circuit package, and the second integrated circuit package are mounted; 
 a first electrical component mounted within the housing; and 
 a second electrical component mounted within the housing, wherein the first integrated circuit package is interposed between the first and second electrical components. 
 
     
     
       19. The apparatus defined in  claim 18  wherein the first opening and a portion of the printed circuit board are interposed between the first and second electrical components. 
     
     
       20. The apparatus defined in  claim 18  wherein the first integrated circuit die is mounted on a surface of the first package substrate, wherein the surface of the first package substrate has a non-rectangular region defined by a perimeter having at least five sides that is covered by the first mold cap, and wherein the surface of the first package substrate has a non-rectangular uncovered border region that surrounds the perimeter of the non-rectangular region and that is uncovered by the first mold cap. 
     
     
       21. The apparatus defined in  claim 19  wherein the first and second opposing surfaces of the printed circuit board are interposed between the first and second electrical components.

Description:
BACKGROUND 
     This relates generally to integrated circuits and, more particularly, to integrated circuit packages and ways for mounting integrated circuit packages to printed circuit boards. 
     Electronic devices such as computers and handheld electronic devices are often provided with packaged integrated circuits mounted to printed circuit boards. In a typical scenario, an integrated circuit is packaged by flip-chip mounting an integrated circuit die to the surface of a package substrate. An additional die may be placed on top of the die and wire bonded to pads on the package substrate. A plastic mold cap covers the die and the additional die and exposed portions of the surface of the package substrate to form a integrated circuit package. Solder pads on the lower surface of the package substrate are used in mounting the integrated circuit package to the surface of a printed circuit board. 
     Conventional packaging and mounting arrangements such as these may consume more space within a device than desired. For example, the total thickness of the printed circuit board and packaged integrated circuit may be larger that desired. 
     It would therefore be desirable to be able to provide improved integrated circuit packaging and mounting arrangements. 
     SUMMARY 
     Integrated circuits may be packaged in integrated circuit packages. An integrated circuit package may have a package substrate formed from printed circuit board material. The package substrate may have a surface to which an integrated circuit die is soldered. One or more additional integrated circuit dies may be stacked above the integrated circuit die or mounted laterally adjacent to the integrated circuit die. 
     A first set of contacts on the package substrate may mate with contacts on the integrated circuit die. Solder may be used to connect contacts on the integrated circuit die to the first set of contacts. A covering material such as a plastic mold cap may be used to cover the integrated circuit die and the first set of contacts. The mold cap may have a rectangular outline or other footprint. A rectangular ring-shaped border region or a border region of other shapes may surround the mold cap and may be free of covering material. A second set of contacts on the package substrate may be formed on the surface of the package substrate in the border region. 
     The integrated circuit package may be mounted on a printed circuit board. The printed circuit board may have an opening that is configured to receive the mold cap. The printed circuit board may have printed circuit contacts. The integrated circuit package may be mounted to the printed circuit so that the surface of the package substrate faces the printed circuit board and so that the mold cap protrudes into the opening. Solder may be used to solder the second set of contacts on the package substrate to the printed circuit contacts. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view of an illustrative electronic device of the type that may be provided with packaged integrated circuits and printed circuit boards in accordance with an embodiment. 
         FIG. 2  is a cross-sectional side view of the electronic device of  FIG. 1  in accordance with an embodiment. 
         FIG. 3  is a cross-sectional side view of an illustrative integrated circuit package in accordance with an embodiment. 
         FIG. 4  is a cross-sectional side view of an integrated circuit package of the type shown in  FIG. 3  mounted to a printed circuit board so that a die covering structure such as a mold cap on the package protrudes through an opening in the printed circuit board in accordance with an embodiment. 
         FIG. 5  is a cross-sectional side view of an illustrative integrated circuit package that is mounted to a printed circuit board so that the mold cap on a first side of a package substrate protrudes through an opening in the printed circuit board and that has external components mounted to an opposing second side of the package substrate in accordance with an embodiment. 
         FIG. 6  is a perspective view of an illustrative printed circuit board having openings that receive protruding portions of integrated circuit packages in accordance with an embodiment. 
         FIG. 7  is a cross-sectional side view of a printed circuit board with openings that receive protruding mold cap portions of packaged integrated circuits in accordance with an embodiment. 
         FIG. 8  is a cross-sectional side view of an illustrative integrated circuit package in which multiple side-by-side integrated circuit die are mounted to a package substrate in accordance with an embodiment. 
         FIG. 9  is a top view of an illustrative integrated circuit package in which multiple laterally adjacent integrated circuit die are mounted in an L shape to a package substrate in accordance with an embodiment. 
     
    
    
     DETAILED DESCRIPTION 
     Electronic devices may be provided with electrical components. The electrical components may include integrated circuits, switches, connectors, sensors, light-emitting diodes, audio components, and other circuits. Electrical components such as these may include semiconductor dies mounted within semiconductor packages. For example, one or more integrated circuit dies may be packaged within an integrated circuit package. 
     Electrical components such as integrated circuit packages (i.e., packaged integrated circuit dies) may be mounted to substrates within an electronic device. The substrates may include printed circuits boards and other dielectric support structures. Printed circuit boards with mounted components such as packaged integrated circuits may be housed in the housing of an electronic device. 
     A perspective view of an illustrative electronic device of the type that may contain one or more printed circuits with mounted electrical components is shown in  FIG. 1 . Electronic devices such as illustrative electronic device  10  of  FIG. 1  may be laptop computers, tablet computers, cellular telephones, media players, other handheld and portable electronic devices, smaller devices such as wrist-watch devices, pendant devices, headphone and earpiece devices, other wearable and miniature devices, or other electronic equipment. 
     As shown in  FIG. 1 , device  10  includes housing  12 . Housing  12 , which is sometimes referred to as a case, may be formed of materials such as plastic, glass, ceramics, carbon-fiber composites and other composites, metal, other materials, or a combination of these materials. Device  10  may be formed using a unibody construction in which most or all of housing  12  is formed from a single structural element (e.g., a piece of machined metal or a piece of molded plastic) or may be formed from multiple housing structures (e.g., outer housing structures that have been mounted to internal frame elements or other internal housing structures). 
     Device  10  may, if desired, have a display such as display  14 . Display  14  may, for example, be a touch screen that incorporates capacitive touch electrodes or other touch sensor structures. Display  14  may include image pixels formed from light-emitting diodes (LEDs), organic LEDs (OLEDs), plasma cells, liquid crystal display (LCD) components, or other suitable image pixel structures. A cover layer such as a cover glass member may cover the surface of display  14 . Buttons such as button  16  may pass through openings in the cover glass. Openings may also be formed in the cover glass of display  14  or in housing  12  to form a speaker port, openings for connector input-output ports, a microphone port, button openings, etc. 
     A cross-sectional side view of device  10  taken along line  18  and viewed in direction  20  of  FIG. 1  is shown in  FIG. 2 . As shown in  FIG. 2 , display  14  may include display module  24  and display cover layer  22 . Display module  24  may include one or more display layers such as liquid crystal display layers, organic light-emitting display layers, or display structures associated with displays using other types of display technology. A touch sensor such as a capacitive touch sensor may, if desired, be incorporated into display  14 . 
     Display  14  may be mounted in housing  12  (e.g., display  14  may be mounted on the front face of device  10 ). Internal components such as electrical components  28  may be mounted on one or more substrates within housing  12  such as substrate  26 . Electrical components  28  may include integrated circuits and other electronic devices. Solder, conductive adhesive, and other attachment mechanisms may be used to mount electrical components  28  to substrate  26 . 
     Substrate  26  may be a rigid printed circuit board (e.g., a printed circuit board formed from fiberglass-filled epoxy or other rigid printed circuit board material) or a flexible printed circuit (e.g., a printed circuit formed from a sheet of polyimide or a layer of other flexible polymer). Substrate  26  may be a printed circuit having one layer of dielectric, two layers of dielectric, three layers of dielectric, or four or more layers of dielectric. One or more layers of metal traces may be used to form interconnect pathways (e.g., vias, contact pads, signal lines, etc.) in a printed circuit (i.e., within the layers of dielectric). If desired, substrate  26  may be formed from a plastic carrier structure (e.g., a molded thermoplastic carrier), a ceramic layer, a glass layer, or other dielectric support structure. Configurations in which substrate  26  is a printed circuit such as a rigid printed circuit board are sometimes described herein as an example. This is, however, merely illustrative. Substrate  26  may be formed from any suitable substrate material. 
     As shown in  FIG. 2 , a substrate such as printed circuit board  26  may have one or more openings such as opening (hole)  30 . Integrated circuit package  32 , which may sometimes be referred to as an electrical device package or component package, may be mounted on printed circuit  26  so that part of integrated circuit package  32  extends into opening  30 . Integrated circuit package  32  may contain one or more integrated circuit dies. The dies may be mounted to package substrate  34 . Package substrate  34  may be formed from printed circuit board material (i.e., package substrate  34  may be a piece of printed circuit board). The protruding portion of integrated circuit package  32  may be formed form a covering material that covers the die(s) mounted to package substrate  34 . The covering material may sometimes be referred to as a mold cap. Mold cap  40  of  FIG. 2  may be formed from a dielectric such as plastic and may be molded over the die that have been mounted to package substrate  34 . 
     Contacts (solder pads) are formed on the surface of package substrate  34  that faces printed circuit  26  (i.e., surface  36  of package substrate  34 ). These contacts are used to solder integrated circuit package  32  to mating contacts (solder pads) on surface  38  of printed circuit  26 . Because mold cap  40  protrudes vertically downwards in direction −Z into opening  30  rather than vertically upwards in direction Z, the assembly formed from printed circuit  26  and integrated circuit package  32  will have an overall thickness that is less than the thickness associated with mounting a comparably thick integrated circuit package  28  on printed circuit board  26  (i.e., thickness T 1  will be less than thickness T 2 ). This creates additional space within electronic device  10  in those portions of device  10  that overlap integrated circuit package  32  such as portion  42 . 
       FIG. 3  is a cross-sectional side view of an illustrative integrated circuit package. In the example of  FIG. 3 , integrated circuit package  32  includes two integrated circuit dies—first die  44  and second die  58 . In general, integrated circuit package  32  may include one die, two dies, three dies, or more than three dies. The example of  FIG. 3  is merely illustrative. 
     As shown in  FIG. 3 , integrated circuit die  44  may have metal solder pads such as contacts  46 . Package substrate  34  may have corresponding metal solder pads such as contacts  48  on surface  36 . Solder  50  may be used to mount integrated circuit die  44  to surface  36  of package substrate  34  (i.e., die  44  may be flip-chip mounted to the printed circuit forming substrate  34  using a ball grid array or other suitable mounting arrangement). Integrated circuit die  58  may be stacked on top of integrated circuit die  44 . For example, die  44  may be a processor or application-specific integrated circuit and die  58  may be a memory chip (as an example). Wire bonds  54  may be used to connect metal pads such as contacts  56  on integrated circuit die  58  to metal pads such as contacts  52  on surface  36  of package substrate  34 . Dielectric such as molded plastic may be used to form mold cap  40  (i.e., mold cap  40  may be from plastic that is molded over integrated circuit die  44  and integrated circuit die  58  to environmentally seal dies  44  and  58  and the contacts, solder, and wires used in electrically connecting these dies to package substrate  34 ). 
     Package substrate  34  may be formed from a printed circuit board having one or more dielectric layers. Metal traces may form signal paths  64  that interconnect the contacts under mold cap  40  such as contacts  52  and  48  to package substrate contacts in  60  in uncovered peripheral region  66 . Peripheral region  66  may form a ring-shaped border that surrounds mold cap  40  or may have other suitable shapes. The center of substrate  32  is a mold cap region that is covered with mold cap  40 . Uncovered peripheral region  66  is free of mold cap material, so contacts  60  and the spaces between contacts  60  in region  66  are not covered with any molded plastic material. Solder  62  on contacts  60  in uncovered region(s)  66  is also uncovered by mold cap material, so solder  62  may be used to solder integrated circuit package  32  to printed circuit  26 . Mold cap  40  may have a rectangular outline, an L-shaped outline, or other suitable shape. Region  66  may be a rectangular ring-shaped region that surrounds a rectangular mold cap, or may have other shapes surrounding mold cap  40 . 
     The package configuration of  FIG. 3  allows signals to be routed to upper surface  36  of package substrate  34 . This allows packaged integrated circuit  32  to be mounted so that mold cap protrudes into opening such as opening  30  of  FIG. 2  in printed circuit board  26  and so that upper surface  36  faces printed circuit board  26 . A cross-sectional side view of packaged integrated circuit  32  of  FIG. 3  following mounting of packaged integrated circuit  32  to printed circuit board  26  in this way is shown in  FIG. 4 . As shown in  FIG. 4 , printed circuit  26  may have an opening such as opening  30 . Opening  30  may have the shape of mold cap  40 . If, for example, mold cap  40  has a rectangular footprint (i.e., a rectangular outline when viewed in vertical dimension Z), opening  30  may have a corresponding rectangular shape. Mold cap  40  may have a thickness that is the same as the thickness of printed circuit  26 , may be thinner than printed circuit  26 , or may be thicker than printed circuit  26  (i.e., so that a portion of mold cap  40  protrudes out of the opposite side of printed circuit  26  from substrate  34 ). 
     Printed circuit  26  may contain multiple layers of printed circuit board material and metal traces for forming printed circuit signal lines  68  and printed circuit board contacts  68 ′ to which contacts  60  of package substrate  34  are soldered using solder  62 . Printed circuit signal lines (interconnects)  68  may be used to route signals between integrated circuit package  32  (i.e., integrated circuits in package  32 ) and external components mounted elsewhere in device  10  (e.g., integrated circuits or other components soldered to printed circuit board contacts  68 ′ or otherwise mounted on printed circuit  26 ). 
     If desired, additional components may be mounted on integrated circuit package  32  such as components  70  of  FIG. 5 . Package substrate  34  may have opposing first and second sides. Surface  36  may be formed on the first side of substrate  34 , facing printed circuit board  26 . Surface  76  may be formed on the opposing second side of substrate  34  (i.e., surfaces  36  and  76  may be opposing surfaces on the front and back of substrate  34 ). As shown in  FIG. 5 , components  70  may have contacts such as terminals  72 . Terminals  72  may be soldered to mating contacts such as contacts  74  on surface  76  of package substrate  34  using solder  78 . Components  70  may be discrete components (e.g., surface-mount technology components such as capacitors, inductors, resistors, etc.), may be packaged integrated circuits, or may be other suitable electronic devices. As an example, components  70  may be direct current (DC) blocking capacitors. 
     Multiple openings  30  may be formed in printed circuit  26 . Integrated circuit packages  32  may be mounted to the upper and lower surfaces of printed circuit  26 . An illustrative printed circuit board with multiple openings  30  is shown in  FIG. 6 . As shown in  FIG. 6 , printed circuit  26  may have upper surface  80  and opposing lower surface  82 . Integrated circuit package  32 - 1  has a downward-facing mold cap  40 - 1  that is received within opening  30 - 1 . Package substrate  34 - 1  of integrated circuit package  32 - 1  has contacts that are soldered to mating contacts on upper surface  80  of printed circuit. Integrated circuit package  32 - 2  has upwards-facing mold cap  40 - 2  that extends into opening  30 - 2 . Package substrate  34 - 2  of integrated circuit package  32 - 2  has contacts that are soldered to mating contacts on lower surface  82  of printed circuit  26 . Additional components (e.g., packaged integrated circuits  28 ) may be soldered to upper surface  80  and lower surface  82  (see, e.g., packaged integrated circuit  28 B). In the configuration of  FIG. 6 , two integrated circuit packages  32 - 1  and  32 - 2  have been mounted in two respective openings  30 - 1  and  30 - 2  of printed circuit board  26 . This is merely illustrative. Printed circuit  26  may have any suitable number of openings  30  and any suitable number of integrated circuit packages may be mounted so that their mold cap portions extend into those openings. 
     As shown in the cross-sectional side view of  FIG. 7 , the relatively small thicknesses associated with mounting protruding portions of integrated circuit packages  32  within openings  30  creates additional space within the interior of device housing  12  for accommodating internal device structures  86 . Internal device structures  86  may include integrated circuits, electrical components such as buttons, light-emitting diodes, sensors, light detectors, printed circuits, internal housing structures, and other internal components in device  10 . Packaged integrated circuits  32  occupy a smaller thickness in vertical dimension Z than comparable packaging arrangements for packaged integrated circuits  28  that do not have mold caps extending into printed circuit openings  30 . Accordingly, structures  86  that overlap packaged integrated circuits  32  and openings  30  are provided with more vertical space than structures  86  that overlap components  28  on printed circuit  26  of  FIG. 7 . 
     If desired, multiple laterally adjacent integrated circuit dies may be mounted (soldered) to package substrate  34 . As shown in  FIG. 8 , for example, integrated circuit package  32  may contain first integrated circuit die  44 - 1  that is flip-chip mounted (i.e., mounted using a ball grid array arrangement) onto package substrate  34  and may contain a second integrated circuit die  44 - 2  that is also flip-chip mounted onto substrate  34 . Die  44 - 1  and die  44 - 2  may be mounted to surface  36  of substrate  34  at respective laterally adjacent locations (i.e., at different respective locations in lateral dimensions X and Y of  FIG. 8 ), so that die  44 - 1  is next to die  44 - 2 . Optional additional die may be stacked on top of die  44 - 1  (see, e.g., die  58 - 1 ) and/or on top of die  44 - 2  (see, e.g., die  58 - 2 ). There are two laterally adjacent dies and two corresponding stacked dies in the example of  FIG. 8  all of which are covered by a common mold cap  40 , while leaving border regions  66  free of any mold cap material. If desired, three or more dies may be arranged at laterally adjacent positions on package substrate  34  and may be covered by a common mold cap  40 . Mold cap  40  may, if desired, be segmented so that there are two or more mold cap portions on surface  36  of substrate  34  and so that each of these separate mold caps overlaps one or more respective dies. The configuration of  FIG. 8  is merely illustrative. 
       FIG. 9  is a top view of an illustrative configuration for integrated circuit package  32  in which dies  44 - 1  and  44 - 2  are arranged to form a lateral bend (i.e., a non-rectangular L-shape). Other non-rectangular layouts may be used for the integrated circuit die(s) on package substrate  34 , if desired. Mold cap  40  may have a shape that covers the integrated circuit dies on substrate  34 . In the example of  FIG. 9 , die  44 - 1  and die  44 - 2  form a non-rectangular L shape, so mold cap  40  has a corresponding non-rectangular L shape and mold-cap-free border region  66  has a shape that surrounds the L-shaped outline of the mold cap. In configurations in which the integrated circuit dies are arranged differently on surface  36  of package substrate  34 , mold cap  40  can be implemented with correspondingly different shapes. To mount integrated circuit package  32  on printed circuit  34  so that mold cap  40  extends through opening  30 , opening  30  may be provided with a shape that matches that of mold cap  40 . If, for example, mold cap  40  has a non-rectangular shape such as an L shape, opening  30  may be provided with a corresponding non-rectangular shape such as an L shape. 
     The foregoing is merely illustrative and various modifications can be made by those skilled in the art without departing from the scope and spirit of the described embodiments. The foregoing embodiments may be implemented individually or in any combination.

Metadata:
Filing Date: 20140128
Publication Date: 20170620
Grant Date: 20170620
Priority Date: 20140128
Inventors: SAUER MATTHIAS
Assignee: APPLE INC
CPC Classifications: [{"code": "H01L2224/73265", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01L2225/06517", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01L25/0657", "inventive": true, "first": true, "tree": "[]"}, {"code": "H05K3/284", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01L2225/0651", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K2203/1316", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01L2225/0651", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01L2224/48091", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/182", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01L2224/16225", "inventive": false, "first": false, "tree": "[]"}, {"code": "H01L2224/0401", "inventive": false, "first": false, "tree": "[]"}, {"code": "H05K1/141", "inventive": true, "first": false, "tree": "[]"}, {"code": "H01L2924/19106", "inventive": false, "first": false, 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Family ID: 53680484