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.

Date of Patent:
Nov. 29, 2005

Filed:

Oct. 03, 2002
Applicants:

Makoto Imai, Toyota, JP;

Naoki Ogawa, Toyota, JP;

Yuji Yagi, Aichi, JP;

Takashi Kojima, Aichi, JP;

Yasushi Yamada, Aichi, JP;

Inventors:

Makoto Imai, Toyota, JP;

Naoki Ogawa, Toyota, JP;

Yuji Yagi, Aichi, JP;

Takashi Kojima, Aichi, JP;

Yasushi Yamada, Aichi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L023/34 ; H01L023/02 ; H01L023/28 ; H01L023/38 ; H01L023/40 ;
U.S. Cl.
CPC ...
Abstract

A first electronic device, a second electronic device which generates less heat than the first electric device, and an electrode are connected by a heat leveling plate formed of an electrically conductive material having high thermal conductivity. A heat radiation plate is provided below an insulated substrate to which the first and second electronic devices are mounted. The second electronic device is cooled by a heat radiation path which extends through the insulated substrate and the heat radiation plate and a heat radiation path which extends through the second electronic device and the electrode to the heat radiation plate. The first and the second electronic device have substantially the same temperature due to heat radiation through the heat leveling plate. As a result, cooling effect of the electronic devices can be enhanced.


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