Probe card

Details Probe card Probe card

2007-12-11

2007-12-11

Hollington, Jermele (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

Reexamination Certificate

active

11229843

ABSTRACT:
A probe card includes a main substrate, a main reinforcing plate attached to the upper surface of the main substrate, a sub-reinforcing plate attached to the upper surface of the main reinforcing plate, and coupling force adjusting means that couples the main reinforcing plate with the sub-reinforcing plate and adjusts the coupling force therebetween. The coupling force adjusting means has a plurality of threaded holes provided at intersections of a plurality of imaginary concentric circles, which is provided with a distance from a center of a probe card on a surface of the sub-reinforcing plate, and a plurality of imaginary straight lines, which is provided radially from the center at an predetermined angle; a plurality of screw holes provided at same intersections on a surface of the main reinforcing plate; and a plurality of coupling screws threaded selectively into the threaded holes23aand the screw holes.

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European Search Report dated Sep. 26, 2005; 2 pages (double-sided).

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