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:
Jan. 30, 1996
Filed:
Dec. 07, 1993
Applicant:
Inventors:
Kazuo Sato, Tokyo, JP;
Mitsuhiro Shikida, Tsuchiura, JP;
Shigeo Ohashi, Tsuchiura, JP;
Toshio Hatada, Tsuchiura, JP;
Noriyuki Ashiwake, Tsuchiura, JP;
Shinji Tanaka, Ushiku, JP;
Takeshi Harada, Abiko, JP;
Yukio Honda, Fuchu, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257718 ; 257719 ; 257717 ;
Abstract
A cooling device according to the present invention, in which a space is formed by means of flat electrodes and side plates disposed on the ends of the flat electrodes, and a flexible film fastened in that space in a shape of the letter S, is fixed to a semiconductor package so that one of the flat electrodes is fitted on the semiconductor package. The respective flat electrodes are alternately powered to move the S shaped section of the flexible film.