Zero insertion force pin grid array socket

Details Zero insertion force pin grid array socket Zero insertion force pin grid array socket

1994-10-11

1996-02-06

Nguyen, Khiem

Electrical connectors

With coupling movement-actuating means or retaining means in...

Including compound movement of coupling part

439948, 439266, H01R 450

Patent

active

054892171

ABSTRACT:
A zero insertion force pin grid array socket includes a cover slidably engaged to a base and having an array of holes formed therethrough. The base has an array of corresponding passages, the passages receiving pins of an IC package inserted through corresponding holes of the cover. Contacts are mounted within the passages and include a generally tuning fork shaped contact having beams which deflect the insertion forces of the pin of the IC package which have a surface area of at least forty percent of the entire surface area of contacts. The contacts include wiping areas which are plated which have a surface area of less than an eightieth of the entire surface area of the contact. The socket cover includes a means for providing an air-gap between the socket cover and the IC package.

REFERENCES:
patent: 3058037 (1962-10-01), Naab et al.
patent: 4531792 (1985-07-01), Oshitani et al.
patent: 4647134 (1987-03-01), Nonaka
patent: 4725692 (1988-02-01), Ishii et al.
patent: 5013256 (1991-05-01), Matsuoka et al.
patent: 5342214 (1994-08-01), Hsu
patent: 5387121 (1995-02-01), Kurz
3M, Electronic Interconnection Systems: Product Selection Guide, with reference in particular to the Textool Test and Interconnect Systems at p. 15.

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