Flexible interface IC test clip

Details Flexible interface IC test clip Flexible interface IC test clip

1994-09-13

1996-03-05

Karlsen, Ernest F.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

439912, G01R 1073, H01R 2372

Patent

active

054971047

ABSTRACT:
A test clip is provided, of the type that has multiple contacts that engage the leads of an IC (integrated circuit) device with closely spaced leads, which can be constructed reliably and at low cost. The test clip includes a flat flexible cable (52, FIG. 5) mounted on the clip housing (30), the cable having parallel conductors mounted on an insulative layer. The lower ends (58) of the conductors serve as lead-engaging contacts, and have exposed inner surfaces that directly engage largely vertical parts (60) of the IC device leads. A stiffener (70) formed by a sheet of stiff but flexible material, is attached to the lower portion of the cable on its outer surface, the stiffener having a lower portion that biases the lower ends of the conductors towards the leads. A circuit board (40) is mounted on the clip housing to lie in a horizontal plane, and has contact pads (80) on its lower surface. The flexible cable is bent so its upper end extends horizontally and has exposed upper conductor ends (92) that connect to the pads on the lower surface of the circuit board, the pads being connected to contact elements (36) of connectors on the upper surface of the circuit board.

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12 Sheets of various Advanced Circuit Technology sales bulletins/catalogs received by Applicant during years 1990-1991.

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