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. 05, 2002
Filed:
Sep. 05, 2001
Applicant:
Inventors:
Tatsuya Ueda, Takefu, JP;
Kimihide Sugou, Kyoto-fu, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B32B 7/00 ; B32B 1/700 ; C03C 1/400 ;
U.S. Cl.
CPC ...
B32B 7/00 ; B32B 1/700 ; C03C 1/400 ;
Abstract
A multilayered ceramic substrate is produced by laminating and sintering insulating ceramic layers and one or more dielectric ceramic layers. The insulating ceramic layer is composed of a BaO—Al O -SiO low temperature sintering ceramic material. The dielectric ceramic layer is composed of a dielectric ceramic material containing a dielectric ceramic component represented by BaO—TiO -(Nd Me )O wherein Me is a lanthanoid and 0≦m≦1.0, and a glass component of about 20.0 to 65.0 mole percent of barium oxide, about 5.0 to 50.0 mole percent of silicon oxide and about 10.0 to 50.0 mole percent of boron oxide.