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:
Sep. 04, 2001
Filed:
Aug. 10, 1999
Applicant:
Inventors:
Takayuki Suyama, Tokyo, JP;
Hironobu Ikeda, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/20 ;
U.S. Cl.
CPC ...
H05K 7/20 ;
Abstract
A PCB is fixed to a PCB stiffener to be held thereby, while an LSI is fixed to an LSI stiffener to be held thereby. The distal ends of four supporting bars provided in the LSI stiffener are screwed on the PCB stiffener, whereby the two stiffeners are firmly integrated with each other to be prevented from being warped. Since a heat sink can be mounted through tapped holes provided in the LSI stiffener, even if the PCB is a thin board such as a build-up substrate, it is possible to mount the heat sink without any difficulties.