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:
Oct. 17, 1989
Filed:
Aug. 31, 1988
Abstract
A ceramic capacitor obtained by preparing a ceramic compact containing a ceramic composition which is not semiconductive upon firing in a reducing atmosphere, applying first paste containing a reducing agent or dopant to the surface of the ceramic compact, applying second paste containing a base metal on the first paste and firing the ceramic compact with the first paste and the second paste in a reducing atmosphere. A ceramic body included in the ceramic capacitor is provided with a semiconductive layer by thermal diffusion of the dopant contained in the first paste. In a portion of the capacitor enclosed between a pair of capacitance extracting electrodes defined by the second paste, the thickness of a dielectric layer is reduced by that of the semiconductive layer.