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. 21, 1987
Filed:
Feb. 27, 1985
Applicant:
Inventors:
Nobuo Iwase, Kamakura, JP;
Kazuo Anzai, Tokyo, JP;
Kazuo Shinozaki, Inagi, JP;
Akihiko Tsuge, Yokohama, JP;
Kazutaka Saitoh, Kawasaki, JP;
Kiyoshi Iyogi, Tokyo, JP;
Noboru Sato, Yokohama, JP;
Mitsuo Kasori, Kawasaki, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428209 ; 428210 ; 428698 ; 428699 ; 428901 ; 501 96 ; 501 98 ;
Abstract
A high thermal conductivity circuit substrate is provided comprising a sintered aluminum nitride ceramic substrate consisting essentially of one member selected from the group of yttrium, the rare earth metals and the alkali earth metals and an electrically conductive thick film paste for a conductive layer formed on the substrate.