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:
May. 16, 2006
Filed:
Mar. 30, 2005
Takako Murosawa, Chuo-ku, JP;
Mari Miyauchi, Chuo-ku, JP;
Kazunori Noguchi, Chuo-ku, JP;
Akira Sato, Chuo-ku, JP;
Takako Murosawa, Chuo-ku, JP;
Mari Miyauchi, Chuo-ku, JP;
Kazunori Noguchi, Chuo-ku, JP;
Akira Sato, Chuo-ku, JP;
TDK Corporation, Tokyo, JP;
Abstract
A multilayer ceramic capacitor having an internal electrode layer and a dielectric layer having a thickness of less than 2 μm is provided, wherein the dielectric layer contains a plurality of dielectric particles, and when it is assumed that standard deviation of a particle distribution of the entire dielectric particles in the dielectric layer is σ (no unit), an average particle diameter of the entire dielectric particles in the dielectric layer is D(unit: μm), and a rate that dielectric particles (coarse particles) having an average particle diameter of 2.25 times of the Dexist in the entire dielectric particles is p (unit: %), the σ and p satisfy σ<0.130 and p<12%; by which a TC bias characteristic can be expected to be improved while maintaining various electric characteristics, particularly a sufficient permittivity, even when the interlayer dielectric layer is made thin.