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:
Aug. 19, 2025
Filed:
Sep. 30, 2020
Applicant:
Kyocera Corporation, Kyoto, JP;
Inventors:
Takayuki Kimura, Omihachiman, JP;
Hisaki Masuda, Hikone, JP;
Yuko Tanaka, Kyoto, JP;
Takayuki Ohyama, Higashine, JP;
Yoshihiro Uemura, Moriyama, JP;
Hiroyuki Miura, Helsinki, FI;
Assignee:
KYOCERA Corporation, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 23/06 (2006.01); H01L 23/00 (2006.01);
U.S. Cl.
CPC ...
H01L 23/06 (2013.01); H01L 24/29 (2013.01); H01L 2224/29139 (2013.01); H01L 2224/29147 (2013.01); H01L 2224/83447 (2013.01); H01L 2224/83455 (2013.01);
Abstract
A lid body includes a base containing an alloy of iron and nickel, a first film positioned on a lower surface of the base and containing nickel, and a second film positioned on a lower surface of the first film and containing copper. During welding of the lid body, penetration of crystal grain boundaries of the base by Cu of the second film is reduced by the first film. Therefore, occurrence of cracks in the base is reduced and thus a package with high airtightness can be formed.