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:
Sep. 15, 1992
Filed:
Mar. 05, 1991
Applicant:
Inventors:
Agnes A Franzak, Albuquerque, NM (US);
Wei-Yean Howng, Albuquerque, NM (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ;
U.S. Cl.
CPC ...
501134 ; 501135 ; 501136 ; 264 66 ;
Abstract
A sintered, composite ceramic material if formed of a plurality of titanate and aluminate compounds that cooperate to produce improved dielectric properties, including a dielectric constant between about 10 and 25, preferably between 14 and 21, and a temperature coefficient less than 15 ppm per .degree.C., preferably less than 10 ppm per .degree.C. The material exhibits an oxide composition generally characterized by the formula