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:
Feb. 03, 1987
Filed:
Mar. 05, 1986
Applicant:
Inventors:
Akio Miyoshi, Nishitama, JP;
Akira Fukami, Nishitama, JP;
Assignee:
Sumitomo Metal Mining Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220359 ; 220200 ; 29588 ; 174 / ;
Abstract
A hermetic sealing cover assembly for a semiconductor device, etc. has a seal ring and a metallic cover joined thereto. The seal ring has a thin layer of gold, silver, platinum or palladium. The cover has a film of a material of high solderability, such as gold or nickel, formed at least on the peripheral edge of its surface facing the seal ring. The ring is joined in its entirety to the peripheral edge of the cover so that the layer on the ring may be bonded to the film on the cover. A method of producing such a sealing cover assembly is also disclosed.