Ceramic laminated device and method for manufacturing same

Details Ceramic laminated device and method for manufacturing same Ceramic laminated device and method for manufacturing same

2007-03-06

2010-11-02

Thomas, Eric (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S303000, C029S025420

Reexamination Certificate

active

07826196

ABSTRACT:
The present invention relates to a ceramic laminated device including a dielectric ceramic and an Ag electrode. In a dielectric ceramic that can be sintered at low temperatures and has a high dielectric constant and Q value, reactivity between the ceramic and Ag during sintering is suppressed low and segregation of specific elements in the proximity of the electrode is controlled. Thus, a filter having a high Q value and low loss is produced stably. For this purpose, in a ceramic laminated body including at least a ceramic and a Si-containing glass, a ratio of A/B, i.e. a ratio of a Si element concentration (A) within a range at a distance of 5 μm or smaller from the Ag electrode to a Si element concentration (B) within a range at a distance larger than 5 μm from the Ag electrode, is set equal to or smaller than 2.

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