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:
Mar. 17, 1992
Filed:
Sep. 27, 1990
Shigeki Harada, Kawasaki, JP;
Masahiro Sugimoto, Yokosuka, JP;
Fujitsu Limited, Kanagawa, JP;
Abstract
A metallization layer structure containing, in order, an aluminum nitride ceramic base layer, an aluminum titanium nitride layer, a titanium layer, a heat-resistant metallic layer and a metallic layer for facilitating soldering and brazing. The aluminum titanium nitride layer is formed at the interface between the aluminum nitride ceramic base layer and the titanium layer by subjecting a laminate containing, in order, an aluminum nitride ceramic base layer, a titanium layer, a heat-resistant metallic layer and a metallic layer for facilitating soldering and brazing to a heat treatment within the range of 350.degree.-1000.degree. C. for 40 minutes.