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. 12, 1988
Filed:
Feb. 20, 1986
Applicant:
Inventors:
Tetsuo Akoh, Tokyo, JP;
Hiroshi Tsuyuki, Tokyo, JP;
Toshihiro Suzuki, Tokyo, JP;
Kentaro Sawamura, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
428469 ; 204 371 ; 204 384 ; 427 96 ; 427 98 ; 427123 ; 427124 ; 4273833 ;
Abstract
A copper electrode is firmly bonded to a sintered aluminum nitride body by applying a copper film on a sintered aluminum nitride body by electroless or electrolytic plating, evaporation or sputtering, and heat treating the copper film on the body at a temperature of 900.degree. to 1083.degree. C. in a weakly oxidizing atmosphere.