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:
Apr. 22, 2003
Filed:
Sep. 11, 2001
Applicant:
Inventor:
Yoshihisa Kanada, Yokohama, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 ;
U.S. Cl.
CPC ...
H05K 7/20 ;
Abstract
To prevent generation of air bubbles in thermal grease when a wired board is bent due to a difference of thermal expansibility between a CPU chip and a heat sink in a CPU package , the thermal grease being filled between the CPU chip and a plate member of the heat sink . A through-hole is formed almost in the center of a plate member so as to go through the plate member