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:
Jul. 01, 2025
Filed:
May. 13, 2021
Applicant:
Agc Inc., Tokyo, JP;
Inventors:
Assignee:
AGC Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/089 (2006.01); C03C 3/085 (2006.01); C03C 3/091 (2006.01); C03C 4/16 (2006.01); H01Q 1/22 (2006.01); H01Q 1/38 (2006.01);
U.S. Cl.
CPC ...
C03C 3/089 (2013.01); C03C 3/085 (2013.01); C03C 3/091 (2013.01); C03C 4/16 (2013.01); H01Q 1/2283 (2013.01); H01Q 1/2291 (2013.01); H01Q 1/38 (2013.01); C03C 2204/08 (2013.01);
Abstract
A glass substrate for high-frequency devices includes, in terms of molar percentage based on oxides: one or more alkaline-earth metal oxides in a total amount of 0.1 to 13%; AlOand BOin a total amount of 1 to 40%, in which a molar ratio of the contents represented by AlO/(AlO+BO) is 0 to 0.45; at least one oxide selected from the group consisting of ScO, TiO, ZnO, GaO, GeO, YO, ZrO, NbO, InO, TeO, HfO, TaO, WO, BiO, LaO, GdO, YbO, and LuO, in a total amount of 0.1 to 1.0%; and SiOas a main component. The glass substrate has a dielectric dissipation factor at 35 GHz of 0.007 or less.