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:
Oct. 10, 2023
Filed:
Jul. 08, 2020
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Shin Takane, Tokyo, JP;
Yousuke Futamata, Tokyo, JP;
Kenichi Sakai, Tokyo, JP;
Yasuharu Miyauchi, Tokyo, JP;
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 10/00 (2006.01); H01L 23/15 (2006.01); H05K 1/03 (2006.01); B32B 17/06 (2006.01); H05K 1/02 (2006.01);
U.S. Cl.
CPC ...
C03C 10/0009 (2013.01); B32B 17/06 (2013.01); C03C 10/0036 (2013.01); C03C 10/0045 (2013.01); H01L 23/15 (2013.01); H05K 1/0306 (2013.01); B32B 2307/206 (2013.01); B32B 2315/08 (2013.01); B32B 2457/08 (2013.01); C03C 2204/00 (2013.01); H05K 1/0298 (2013.01);
Abstract
A glass ceramic sintered body having a small dielectric loss in a high frequency band of 10 GHz or higher and a wiring substrate using the same are provided. The glass ceramic sintered body contains crystallized glass, an alumina filler, and silica. The content of the crystallized glass is 45 mass % to 85 mass %, the content of the alumina filler is 14.8 mass % to 50.1 mass % in terms of AlO, and the content of silica is 0.2 mass % to 4.9 mass % in terms of SiO.