Method of making contact surface for contact element

Details Method of making contact surface for contact element Method of making contact surface for contact element

1992-05-26

1993-09-14

Arbes, Carl J.

Metal working

Method of mechanical manufacture

Electrical device making

29874, 29883, 264 61, 439 71, H01R 4304

Patent

active

052437574

ABSTRACT:
A miniature socket (10) for electrically interconnecting contact pads on a bare integrated circuit chip (16) to circuit pads (64) on a substrate (18) is disclosed. The socket includes a housing (12) and contact elements (14) having a diameter of about 0.003 inches. The housing (12) includes a recess (28) on one surface (30) for receiving the circuit chip (16) and cavities (44) on an opposite surface (38) for receiving the contact elements (14) and passages (56) leading to the recess (28) from the cavities (44) for receiving the pin sections (80) on the elements (14). Methods of forming a gold tip (84) on the pin sections (80) and for providing cavities (44) and passages (56) in the housing (12) are also disclosed.

REFERENCES:
patent: Re32370 (1987-03-01), Bright
patent: 3927841 (1975-12-01), Iacobucci
patent: 3975079 (1976-08-01), Blakesley et al.
patent: 4657325 (1987-04-01), Marks
patent: 4755146 (1988-07-01), Rishworth et al.
patent: 4823234 (1989-04-01), Konishi et al.
patent: 4902233 (1990-02-01), Maillot
patent: 4969828 (1990-11-01), Bright et al.

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