Global Patent Index - EP 0000864 B1

EP 0000864 B1 19810415 - PROCESS FOR MANUFACTURING THICK FILM VARISTORS

Title (en)

PROCESS FOR MANUFACTURING THICK FILM VARISTORS

Publication

EP 0000864 B1 19810415 (DE)

Application

EP 78100192 A 19780619

Priority

DE 2735484 A 19770805

Abstract (en)

[origin: US4186367A] A glass-free thick film varistor operable at operating voltages ranging from about 30 to 200 volts per mm of active varistor material is produced by providing a screen-printable paste comprised of a non-glass containing substantially homogeneous mixture of granular varistor materials which have ZnO as the main component thereof and an organic binder, applying such paste in a desired pattern onto an insulating substrate and sintering such applied paste at relatively high temperatures so as to convert the paste into thick film varistors.

IPC 1-7

H01C 7/10; H01C 17/06; C04B 35/00

IPC 8 full level

H01C 7/10 (2006.01); H01C 17/065 (2006.01)

CPC (source: EP US)

H01C 7/1006 (2013.01 - EP US); H01C 17/06546 (2013.01 - EP US); Y10T 29/49082 (2015.01 - EP US)

Designated contracting state (EPC)

FR GB NL SE

DOCDB simple family (publication)

EP 0000864 A1 19790307; EP 0000864 B1 19810415; CA 1117223 A 19820126; DE 2735484 A1 19790215; DE 2735484 C2 19840607; IT 1097664 B 19850831; IT 7826492 A0 19780804; JP S5429096 A 19790303; JP S5928962 B2 19840717; US 4186367 A 19800129

DOCDB simple family (application)

EP 78100192 A 19780619; CA 308575 A 19780802; DE 2735484 A 19770805; IT 2649278 A 19780804; JP 9445278 A 19780802; US 91785778 A 19780622