Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1989-07-20
1991-07-02
Griffin, Donald A.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
252 623BT, H01G 410, C09K 160
Patent
active
050290428
ABSTRACT:
The present invention provides ceramic compositions for preparing multi-layer capacitors, having high dielectric constants between about 4900 and 5400, dissipation factors below about 2.0%, high insulation resistance capacitance products and stable temperature coefficient characteristics, by a process of mixing a major ceramic component with one or more precipitated dopant components. By controlling the conditions of the system, precipitated dopant particles are charged oppositely to major ceramic component particles and are thus associated with the major ceramic component particles.
REFERENCES:
patent: 3028248 (1962-04-01), Glaister
patent: 3764529 (1973-10-01), Matsuo et al.
patent: 4148853 (1979-04-01), Schuber
patent: 4347167 (1982-08-01), Payne et al.
Griffin Donald A.
TAM Ceramics, Inc.
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