Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Reexamination Certificate
2007-06-12
2007-06-12
Group, Karl (Department: 1755)
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
C361S321500, C501S138000, C501S139000
Reexamination Certificate
active
11107358
ABSTRACT:
Multilayer ceramic chip capacitors which satisfy Y5V requirements and which are compatible with reducing atmosphere sintering conditions so that non-noble metals such as nickel, copper, and alloys thereof may be used for internal and external electrodes are made in accordance with the invention. The capacitors exhibit desirable dielectric properties (high capacitance, low dissipation factor, high insulation resistance), excellent performance on highly accelerated life testing, and very good resistance to dielectric breakdown. The dielectric layers comprise BaTiO3doped with other metal oxides such as MgO, CaO, ZnO, MnO2, ZrO2, SiO2, Nd2O3, Nb2O5, and Y2O3.
REFERENCES:
patent: 4558020 (1985-12-01), Itakura et al.
patent: 4855266 (1989-08-01), Burn
patent: 5070047 (1991-12-01), Gardner et al.
patent: 5071794 (1991-12-01), Shaikh
patent: 5097391 (1992-03-01), Nomura et al.
patent: 5120579 (1992-06-01), Gardner et al.
patent: 5128289 (1992-07-01), Wilson
patent: 5164342 (1992-11-01), Muralidhar et al.
patent: 5258335 (1993-11-01), Muralidhar et al.
patent: 5296425 (1994-03-01), Chazano et al.
patent: 5361187 (1994-11-01), Srinivasan
patent: 5397830 (1995-03-01), Shaikh et al.
patent: 5510305 (1996-04-01), Sano et al.
patent: 5571767 (1996-11-01), Wilson et al.
patent: 5599757 (1997-02-01), Wilson et al.
patent: 5604167 (1997-02-01), Wilson et al.
patent: 5790367 (1998-08-01), Mateika et al.
patent: 5841625 (1998-11-01), Hennings et al.
patent: 5900223 (1999-05-01), Matijevic et al.
patent: 6072688 (2000-06-01), Hennings et al.
patent: 6078494 (2000-06-01), Hansen
patent: 6185087 (2001-02-01), Park et al.
patent: 6610241 (2003-08-01), Shrout et al.
patent: 6649554 (2003-11-01), Chang et al.
patent: 6721164 (2004-04-01), Albertsen et al.
patent: 6727200 (2004-04-01), Maher et al.
patent: 6797661 (2004-09-01), Mikkenie et al.
patent: 6828266 (2004-12-01), Park et al.
patent: 7161795 (2007-01-01), Megherhi et al.
Albertsen Knuth
Chu Mike S. H.
Coppens Willibrordus J.
McCauley Daniel E.
Megherhi Mohammed H.
Ferro Corporation
Group Karl
Rankin, Hill Porter & Clark LLP
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