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:
Nov. 27, 2007
Filed:
Apr. 14, 2004
Applicants:
Naoki Kidani, Ishikawa, JP;
Kiyoshi Mizushima, Ishikawa, JP;
Mikio Takimoto, Ishikawa, JP;
Inventors:
Assignee:
Nikko Company, Ishikawa—Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/20 (2006.01); C04B 35/22 (2006.01); B32B 18/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low temperature sintering ceramic composition can be sintered at 850 to 1,000° C., and the sintered ceramic has a low dielectric constant (9 or less at 16 Ghz or more) and a high Qf (10,000 or more). The composition can be co-sintered with wiring material containing Ag, Au, or Cu. The ceramic composition includes (by mass) CaO, MgO, and SiOin total: over 60% to 98.6%; BiO: from 1% to under 35%; and LiO: from 0.4% to under 6%; wherein (CaO+MgO) and SiOare contained in the molar ratio of from 1:1 to under 1:2.5.