Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Reexamination Certificate
2005-01-11
2005-01-11
Dinkins, Anthony (Department: 2831)
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
C361S321400, C361S321500, C361S311000, C501S134000, C501S137000
Reexamination Certificate
active
06842329
ABSTRACT:
A ceramic mass has a phase-heterogeneous ceramic of m weight percent of a phase composed of BaNd2Ti4O12with negative temperature coefficient of the dielectric constant and 100-m weight percent of a phase composed of Nd2Ti2O7with positive temperature coefficient of the dielectric constant, with m having a value of 50<m<70, and an additive of glass frit that contains ZnO, B2O3and SiO2and whose weight amounts to between 3 and 10 weight percent of the ceramic. The ceramic mass is used to construct a multi-layer capacitor with copper electrodes.
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Feltz Adalbert
Sedlmaier Peter
Dinkins Anthony
Epcos AG
Schiff & Hardin LLP
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