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:
Mar. 14, 1989
Filed:
Jun. 03, 1986
Satoru Yuhaku, Osaka, JP;
Seiichi Nakatani, Neyagawa, JP;
Tsutomu Nishimura, Uji, JP;
Toru Ishida, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
Disclosed is a dielectric paste for a ceramic multilayer wiring substrate, of which feature, among others, lies in the composition of inorganic components comprised of ceramics made of Al.sub.2 O.sub.3, SiO.sub.2, CaO and MgO, and a borosilicate glass. This can be prepared by mixing a part of the glass with the ceramic, calcining the mixture at a high temperature, and then adding the remaining glass to mix with the calcined product. The insulation layer is densely formed, and a dielectric paste excelling in electric insulating property can be obtained by mixing this composition with an organic liquid.