Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1990-01-31
1991-10-08
Wieder, Kenneth
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324156P, 324 725, G01R 3102, G01R 1512
Patent
active
050557777
ABSTRACT:
An apparatus for testing of integrated circuits (ICs) has parallel plates arranged at a fixed distance from each other, each having a plurality of aligning bores, and a plurality of equally oriented contact elements made of resilient sheet material. The elements have a first straight end portion sitting in a bore of one of said plates and a second straight end portion sitting in an aligning bore of the other of said plates. A pressure member is used to move an IC toward the outer side of one of the plates and the first end portions of the contact elements, which first ends extend slightly beyond the outer side of one of the plates and form a pattern which corresponds to the pattern of contact points of the IC to be tested. The second end portions of the contact elements are adapted to be connected to a testing device, and the portion of the contact elements between said first and second end portions lie between the plates and are offset relative to the end portions and experience multiple deflections as axial pressure is exerted on the first end portions. The contact elements are formed out of a flat strip, and the center portion of each element is bent out of the plane defined by the strip.
REFERENCES:
patent: 4318042 (1982-03-01), Eda et al.
patent: 4897598 (1990-01-01), Doemens et al.
Garparri et al., "Bucking Beam Probe"; IBM Technical Disclosure Bulletin; vol. 16, No. 5, Oct. 1973 (324/158P).
Bonelli Riccardo
Plohn Gunter
Barnes John C.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Nguyen Vinh P.
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