Tightening rings for integrated circuit tester heads

Details Tightening rings for integrated circuit tester heads Tightening rings for integrated circuit tester heads

1998-04-24

2000-10-03

Metjahic, Safet

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324754, 324758, G01R 3102

Patent

active

061278181

ABSTRACT:
An assembly ring includes a collar for removable assembly of the ring on a test head. The assembly ring further includes a disk having an open central portion and meant for supporting a periphery of a wafer, which provides an interface of electrical contact transfer between a test head and a circuit to be tested. A rotatable connection including a ball bearing is provided between the disk and the collar.

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French Search Report from French Patent Application 97 05317, filed Apr. 24, 1997.
Patent Abstracts of Japan vol. 95, No. 8, Sep. 29, 1995 & JP-A-07 130800 (NEC).

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