The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 23, 2004
Filed:
Oct. 27, 2003
Katsumi Suzuki, Tokyo, JP;
Takahiro Ishibashi, Tokyo, JP;
Yuji Nakamura, Tokyo, JP;
Shuuji Kunioka, Yokohama, JP;
Yamaichi Electronics Co., Ltd., Tokyo, JP;
Abstract
An IC socket for the fine pitch IC package includes a socket body having an opening for guiding the IC package, an insulation base having a plurality of through-holes corresponding to the external terminals of the IC package, the contact pins placed in the through-holes, and a cover member for applying a predetermined pressure to bring the external terminals of the IC package and the contact pins into contact with one another. Each of the contact pins is formed with a first plunger including a terminal portion to be in contact with the external terminal of the IC package, a wider portion whose width is larger than the width of the terminal portion and the shaft whose width is equal to or smaller than the terminal portion, the coil spring, and the second plunger having a U-shape section, to be connected with the contact terminal of external circuit.