Self-limiting capacitor formed using a plurality of thin film se

Details Self-limiting capacitor formed using a plurality of thin film se Self-limiting capacitor formed using a plurality of thin film se

1986-12-11

1988-03-01

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

29 2542, 252 623B, H01G 410, H01G 700

Patent

active

047290587

ABSTRACT:
The invention discloses a self-limiting ceramic capacitor characterized by high capacitance and transient voltage protective properties comprising a plurality of thin layers of a zinc oxide-based ceramic material having non-linear resistance characteristics with each layer having a conductive coating on at least one surface thereof and the coated ceramic layers sintered together to form a laminated stack. A conductive coating comprising a first electrode of the capacitor is formed on a first edge of the laminated stack of layers and is in electrical communication with a portion of the conductive coating on some of the layers extending to that edge of the layer. Conductive material comprising a second electrode of the capacitor is formed on a second and opposite edge of the laminated stack of layers in electrical communication with a portion of the conductive coating on at least some of the other layers in the plurality of layers having a portion of the conductive coating thereon extending to the second and opposite edge of the layers.

REFERENCES:
patent: 3458455 (1969-07-01), Jonker
patent: 3694710 (1972-09-01), Kirschner
patent: 4081857 (1978-03-01), Hanold
patent: 4452728 (1984-06-01), Carlson et al.
patent: 4452729 (1984-06-01), Carlson et al.
patent: 4460497 (1984-07-01), Gupta et al.
patent: 4513350 (1985-04-01), Coleman
patent: 4641221 (1987-02-01), Khoury et al.
"Technical Information Ceramic Capacitors", Centre Engineering, State College, Pa.

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