Monolithic ceramic capacitor

Details Monolithic ceramic capacitor Monolithic ceramic capacitor

2007-08-14

2010-12-28

Thomas, Eric (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S303000

Reexamination Certificate

active

07859822

ABSTRACT:
A capacitor body includes a capacitance-forming section including an alternately arranged plurality of internal electrodes and plurality of dielectric ceramic layers and outer layer sections disposed on the upper or lower face of the capacitance-forming section (28). The outer layer sections include an outermost layer and a second layer (31) inwardly located therefrom. The second layer has a thermal expansion coefficient greater than that of the outermost layer by 1×10−6/° C. to 3×10−6/° C. The outermost layer has a thickness of 50 to 80 μm. The second layer has a thickness of 20 to 50 μm. The arrangement prevents cracks from being formed in a monolithic ceramic capacitor when external electrodes are formed by baking and cooling, and cracks caused by fatigue failure due to low-stress cycles such as heat cycles are prevented from reaching internal electrodes.

REFERENCES:
patent: 4574329 (1986-03-01), Eijkelenkamp et al.
patent: 2-086109 (1990-03-01), None
patent: 3-136308 (1991-06-01), None
patent: 03136308 (1991-06-01), None
patent: 06-243725 (1994-09-01), None
patent: 9-148175 (1997-06-01), None
patent: 9-320887 (1997-12-01), None
patent: 11340083 (1999-12-01), None
patent: 2004-149341 (2004-05-01), None
English Translation of JPO Action dated Nov. 24, 2009.
Written Opinion of the International Searching Authority dated May 16, 2006.

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