[특허]Contact carriers (tiles) for populating larger substrates with spring contacts

[미국특허] Contact carriers (tiles) for populating larger substrates with spring contacts 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01R-012/00
출원번호	US-0561297 (2006-11-17)
등록번호	US-7347702 (2008-03-25)
발명자 / 주소	Eldridge,Benjamin N. Dozier, II,Thomas H. Khandros,Igor Y. Mathieu,Gaetan L. Smith,William D.
출원인 / 주소	FormFactor, Inc.
대리인 / 주소	Burraston,N. Kenneth
인용정보	피인용 횟수 : 10 인용 특허 : 92

초록 ▼

An interconnection apparatus and a method of forming an interconnection apparatus. Contact structures are attached to or formed on a first substrate. The first substrate is attached to a second substrate, which is larger than the first substrate. Multiple such first substrates may be attached to the second substrate in order to create an array of contact structures. Each contact structure may be elongate and resilient and may comprise a core that is over coated with a material that imparts desired structural properties to the contact structure.

대표청구항 ▼

What is claimed is: 1. An assembly for contacting a semiconductor wafer, the assembly comprising: a plurality of tile subassemblies, each tile subassembly comprising: a tile substrate having two opposite surfaces; a plurality of resilient contacts extending from a first of the two opposite surfaces; a plurality of first terminals on a second of the two opposite surfaces and each one of the plurality of first terminals connected to a corresponding one of the plurality of contacts; and a second substrate having a plurality of second terminals on a surface thereof, the tile assemblies fixed to the second substrate with the plurality of first terminals connected to the plurality of second terminals. 2. The assembly of claim 1, wherein the second substrate comprises an insulating material. 3. The assembly of claim 1, wherein the second substrate is a space transformer comprised of a ceramic material. 4. The assembly of claim 1 further comprising: a plurality of third terminals adjacent the second substrate, selected ones of the plurality of third terminals connected with corresponding ones of the plurality of second terminals. 5. The assembly of claim 4 further comprising a first spacing between first and second closest-spaced ones of the plurality of third terminals and a second spacing between the corresponding ones of the plurality of second terminals. 6. The assembly of claim 5 wherein the first spacing is closer than the second spacing. 7. The assembly of claim 1, wherein the first surface of a first of the plurality of tile subassemblies and the first surface of a second of the plurality of tile subassemblies are substantially coplanar. 8. The assembly of claim 1, wherein a plurality of contacts comprise composite interconnection elements, each interconnection element having a base portion attached to the first surface of the tile and connected to a respective one of the first terminals, and a resilient, elongate, free standing section extending from the base portion. 9. The assembly of claim 8 wherein each interconnection element further comprises: a core of soft material having a relatively low yield strength; and a shell of hard material having a yield strength higher than the soft material, deposited on the core to a thickness sufficient to impart a desired resiliency to the interconnection element. 10. The assembly of claim 8, wherein each interconnection element further comprises a tip structure mounted on a free end thereof. 11. The assembly of claim 1, wherein the second substrate comprises a space transformer component of a probe assembly. 12. The assembly of claim 1, further comprising z-axis alignment means for maintaining tips of said plurality of contacts on each of said plurality of tile assemblies at a prescribed height relative to the surface of the second substrate. 13. The assembly of claim 12, wherein the z-axis alignment means comprises a plurality of compliant connections disposed between and connecting the selected ones of the plurality of first terminals and the selected ones of the plurality of second terminals. 14. The assembly of claim 12, wherein the z-axis alignment means comprises a plurality of substantially equal volumes of solder disposed between and connecting the selected ones of the plurality of first terminals and the selected ones of the plurality of second terminals. 15. The assembly of claim 1, further comprising x-y alignment means for maintaining a prescribed spacing between individual ones of the plurality of tile subassemblies. 16. The assembly of claim 1, further comprising a passive substrate adhered to a bottom surface of the second substrate, wherein the bottom surface is opposite to the surface mounted to the plurality of tile subassemblies. 17. The assembly of claim 16, wherein the passive substrate comprises a copper/invar/copper laminate. 18. The assembly of claim 1, wherein an average pitch between adjacent ones of the plurality of tiles is substantially the same as an average pitch between adjacent semiconductor devices on the semiconductor wafer.

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[미국특허] Contact carriers (tiles) for populating larger substrates with spring contacts 원문보기

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[미국특허] Contact carriers (tiles) for populating larger substrates with spring contacts 원문보기

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