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:
Dec. 12, 2023
Filed:
Feb. 19, 2018
Applicant:
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Inventors:
Nobuhiro Hidaka, Tokyo, JP;
Hironori Kugimoto, Tokyo, JP;
Assignee:
SUMITOMO OSAKA CEMENT CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/683 (2006.01); C04B 35/103 (2006.01); H01J 37/32 (2006.01); H01L 21/67 (2006.01);
U.S. Cl.
CPC ...
H01L 21/6833 (2013.01); C04B 35/103 (2013.01); H01J 37/32724 (2013.01); H01L 21/67103 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/785 (2013.01); C04B 2235/786 (2013.01); C04B 2235/85 (2013.01); C04B 2235/9669 (2013.01); H01J 2237/002 (2013.01);
Abstract
This composite sintered body is a ceramic composite sintered body which includes aluminum oxide which is a main phase, and silicon carbide which is a sub-phase, the composite sintered body including an interface layer which includes, as a forming material, a material other than the aluminum oxide and the silicon carbide, at an interface between a crystal grain of the aluminum oxide and a crystal grain of the silicon carbide in a grain boundary.