Multilayer capacitor

Details Multilayer capacitor Multilayer capacitor

2006-01-03

2006-01-03

Dinkins, Anthony (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S321200, C361S321500

Reexamination Certificate

active

06982862

ABSTRACT:
A multilayer capacitor includes a multilayer body as a main body of the multilayer capacitor, in which a plurality of internal electrodes and stacked dielectric layers each interposed between the internal electrodes are disposed and dielectrics are disposed on an outer periphery side of the plural internal electrodes, the multilayer body being formed in a rectangular parallelepiped shape with a width dimension of 2 mm or less, wherein: margin portions, in which no internal electrode exists, between end faces of the multilayer body and end portions of the internal electrodes are disposed on both end sides of the internal electrodes respectively; and a margin ratio which is a ratio of a dimension of each of the margin portions to the width dimension of the multilayer body is set to a percentage within a range of 10% to 25% per one-side margin portion of the multilayer body. Therefore, a multilayer capacitor is obtained that not only can realize both downsizing and higher capacity, but also has reliability not lowered with time.

REFERENCES:
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patent: 4931849 (1990-06-01), Tajima
patent: 5072329 (1991-12-01), Galvagni
patent: 5550705 (1996-08-01), Moncrieff
patent: 6542352 (2003-04-01), Devoe et al.
patent: 2000-124064 (2000-04-01), None
U.S. Appl. No. 10/959,191, filed Oct. 7, 2004, Kobayashi.
U.S. Appl. No. 10/958,288, filed Oct. 6, 2004, Kobayashi.

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