Capacitor having a dielectric ceramic layer

Details Capacitor having a dielectric ceramic layer Capacitor having a dielectric ceramic layer

2007-05-29

2007-05-29

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S321200, C501S138000

Reexamination Certificate

active

10363221

ABSTRACT:
A capacitor includes at least two pairs of opposing electrode layers and an intermediate dielectric layer. The intermediate dielectric layer includes a ceramic material that contains at least two different components existing in separate phases. The at least two different components have a perovskite structure that contains silver in A-positions and niobium and tantalum in B-positions. A composition of a first component and a composition of a second component are such that temperature coefficients of respective permittivities TkεAand TkεBhave different signs within a temperature range.

REFERENCES:
patent: 4283752 (1981-08-01), Layton
patent: 5434742 (1995-07-01), Saito et al.
patent: 5619051 (1997-04-01), Endo
patent: 2003/0179617 (2003-09-01), Gudesen et al.
patent: 36 88 098 (1993-07-01), None
patent: 38 89 614 (1994-12-01), None
patent: 690 22 535 (1996-03-01), None
patent: 196 53 792 (1998-06-01), None
patent: 19722618 (1998-03-01), None
patent: 2000044339 (2000-02-01), None
patent: WO 98/03446 (1998-01-01), None
M. Valant, D. Suvorov, “Microwave Ceramics with Permittivity over 400”; The 9thInternational Meeting on Ferroelectricity, Seuol, South Korea, 1997, Absract Book, P-05-TH-067.
M. Valant, D. Suvorov, “New High-Permittivity Ag (Nb1-xTax)O3 Microwave Ceramics: Part 1, Crystal Structures and Phase-Decomposition Relations”; Journal of the American Ceramic Society, 82 [1], pp. 81-87 (1999).
M. Valant, D. Suvorov, “New High-Permittivity Ag (Nb1-xTax)O3 Microwave Ceramics: Part 2, Dielectric Characteristics”; Journal of the American Ceramic Society, 82 [1], pp. 88-93 (1999).
A. Kania, “Ag(Nb1-xTax)O3 Solid Solutions-Dielectric Properties and Phase Transitions” Phase Transitions, 1983, vol. 3, pp. 131 bis 140.
Moulsen, A. J. et al, “Electroceramics”, Chapman and Hall, 1990.
English-Language Translation of IPER in PCT/DE01/02971 (Aug. 6, 2002).

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