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:
May. 28, 2002
Filed:
Jun. 16, 2000
Applicant:
Inventors:
San-Yuan Chen, Hsinchu, TW;
Yih-Jaw Lin, Nan tou, TW;
Assignee:
National Science Council, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07B 3/5453 ; C07B 3/5495 ;
U.S. Cl.
CPC ...
C07B 3/5453 ; C07B 3/5495 ;
Abstract
A dielectric ceramic material is provided. The ceramic material includes a mixture represented by the formula of Bi (Zn Nb )O (BZN), 0≦x≦0.67, and a flux having an eutectic composition for lowering the sintering temperature of the mixture from 950˜1100° C. to 800˜850° C. The dielectric material has a dielectric constant larger than 45 (∈ >45) and a quality factor larger than 1200 (or Q·f>4500) at 3.5 GHz.