Barrier-layer capacitor and process for the production thereof

Details Barrier-layer capacitor and process for the production thereof Barrier-layer capacitor and process for the production thereof

1979-05-07

1982-07-20

Larkins, William D.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

357 14, 357 68, 357 71, 361310, 361322, H01L 2992

Patent

active

043408982

ABSTRACT:
A barrier layer capacitor and a process for producing that capacitor: A central reduction layer formed of ceramic material is produced with a rectangular cross-section. A reoxidation layer is formed on all of the surfaces and is removed from one of the surfaces. Grooves are formed in opposite surfaces, including the one from which the reoxidation layer has been removed. A metal layer is applied around the entire capacitor body, except on the surface from which the reoxidation layer has been removed. Narrow strips are removed from the metal layer on the sides adjacent the surface without the reoxidation layer and at a location slightly away from that reoxidation layer free surface. On the reoxidation layer free surface, a connection coating is applied which extends up to the unremoved portion of the solderable metal coating. The capacitor may be cut from an elongated bar. The bar from which the capacitor may be cut may be the width of two capacitors and it may be separated along the line running through the center into two individual capacitors. In that event, the ceramic bar has a longitudinally extending borehole therethrough which becomes the conductor receiving grooves upon separation of the bar into two pieces.

REFERENCES:
patent: 3274468 (1966-09-01), Rodriquez et al.
patent: 3676757 (1972-07-01), Ramisch
patent: 3967167 (1976-06-01), Scharrer et al.
patent: 4221033 (1980-09-01), Kobayashi

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