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. 16, 2005
Filed:
Jan. 27, 2005
Kazunori Noguchi, Tokyo, JP;
Takako Hibi, Tokyo, JP;
Mari Miyauchi, Tokyo, JP;
Akira Sato, Tokyo, JP;
Kazunori Noguchi, Tokyo, JP;
Takako Hibi, Tokyo, JP;
Mari Miyauchi, Tokyo, JP;
Akira Sato, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A multilayer ceramic capacitorhaving internal electrode layersand internal dielectric layershaving thickness of at most 3.5 μm wherein; the internal dielectric layerscomprising dielectric particles contacting the internal electrode layers (contacting dielectric particles) and dielectric particles not contacting the internal electrode layers (non-contacting dielectric particles), and when an average particle size of an entire plural number of dielectric particles included in the internal dielectric layersis D50, and standard deviation for particle size range of the contacting dielectric particles is σ, the multilayer ceramic capacitor satisfy the following equations; D50≦0.25 μm and σ≦0.14. According to the present invention, multilayer ceramic capacitoris provided wherein the capacitor is expected to have improved DC bias characteristic even when the internal dielectric layersare made thinner.