Active solid-state devices (e.g. – transistors – solid-state diode – Housing or package – With contact or lead
Patent
1998-01-23
1999-10-26
Chaudhuri, Olik
Active solid-state devices (e.g., transistors, solid-state diode
Housing or package
With contact or lead
257738, 257669, 439 82, H01L 2348, H01L 2352
Patent
active
059733942
ABSTRACT:
An electrical contact element that solves many problems associated with making electrical connections to integrated circuit chips. The contact element fits in small areas, but in some configurations can provide compliance in multiple directions to provide the required compliance. The contacts are shaped to provide relatively large stroke and also large force for good electrical contact. Contact elements according to the invention are incorporated into contactors for making electrical contact to Ball Grid Arrays for testing. Contact elements according to the invention are also incorporated into Ball Grid Array packages, and used as a mounting point for solder balls. The contact elements make the electrical connection withstand stress associated with differential thermal expansion.
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Richard Robert A.
Slocum Alexander H.
Ziegenhagen, II R. Scott
Cao Phat X.
Chaudhuri Olik
Kinetrix, Inc.
Walsh Edmund J.
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