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:
Aug. 15, 2000
Filed:
Apr. 23, 1998
Nobuhiro Sasaki, Tokyo, JP;
Taiyo Yuden Co., Ltd., Tokyo, JP;
Abstract
The ceramic electronic part has a ceramic material and an electrode formed on the surface of the ceramic material. The ceramic material has rod-shaped particles formed projecting from the surface thereof, the rod-shaped particles having an aspect ratio (a long axis/short axis ratio) of from 3 to 30. The ceramic material is formed using a dielectric ceramic composition containing, as a major component, a composite oxide which, for example, comprises an oxide of barium (Ba), an oxide of titanium (Ti) an oxide of at least one rare earth element and one or both of an oxide of bismuth (Bi) and an oxide of lead (Pb). The ceramic electronic part can improve its characteristics at high frequency inherent in conventional ones which suffer from the remarkably worsening of their high frequency characteristics due to a rise in the specific resistance of the electrode when it attempts to improve the adherence strength of the electrode are made using an electrode paste to which a component capable of causing a chemical reaction with the ceramic material or which worsen their high frequency characteristics by the remaining of materials obtained by the reaction with a treatment liquid on the surface of the ceramic material when attempts are made to improve the adherence strength between the ceramic material and the electrode by chemical treatment.