Over charge protection device

Details Over charge protection device Over charge protection device

2007-08-28

2007-08-28

Munson, Gene M. (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

C257S656000, C257S657000

Reexamination Certificate

active

10930276

ABSTRACT:
An over-voltage protection device includes a substrate including an upper surface and a lower surface; a first electrode provided on the upper surface of the substrate; a second electrode provided on the lower surface on the substrate; a first conductive layer overlying the lower surface of the substrate, the first conductive region being a conductive region of a first type; a plurality of first conductive regions provided proximate the upper surface of the substrate, the plurality of first conductive regions being conductive regions of the first type; and a plurality of second conductive region provided proximate the upper surface of the substrate, the plurality of second conductive region being conductive regions of a second type. The plurality of the first conductive regions are provided in an alternating manner with the plurality of second conductive regions. The first electrode is contacting the plurality of the first and second conductive regions.

REFERENCES:
patent: 4982260 (1991-01-01), Chang et al.
patent: 5086330 (1992-02-01), Minato
patent: 5500377 (1996-03-01), Flores et al.
patent: 5682044 (1997-10-01), Tamamushi et al.
patent: 5880513 (1999-03-01), Temple et al.
patent: 6670776 (2003-12-01), Guthrio et al.
patent: 6728275 (2004-04-01), Stephens, IV et al.

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