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:
Jun. 13, 2017
Filed:
Sep. 08, 2015
Applicant:
Ngk Insulators, Ltd., Aichi-prefecture, JP;
Inventor:
Sugio Miyazawa, Kasugai, JP;
Assignee:
NGK INSULATORS, LTD., Aichi-prefecture, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/10 (2006.01); H01L 21/762 (2006.01); C04B 35/115 (2006.01);
U.S. Cl.
CPC ...
C04B 35/10 (2013.01); C04B 35/115 (2013.01); H01L 21/7624 (2013.01); H01L 21/76251 (2013.01); C04B 2235/3206 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/6025 (2013.01); C04B 2235/6027 (2013.01); C04B 2235/6582 (2013.01); C04B 2235/661 (2013.01); C04B 2235/786 (2013.01); Y10T 428/24413 (2015.01);
Abstract
A handle substrate is composed of a translucent alumina sintered body containing a sintering aid including at least magnesium. A concentration of magnesium at a bonding face of the handle substrate to a donor substrate is half or less of an average concentration of magnesium of the handle substrate.