Semiconductor device and method for manufacturing same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11532608
APP PUB NO 20210280573A1
SERIAL NO

17260702

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Importance

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Abstract

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A semiconductor device including a protected element, a contact region, wiring, and a channel stopper region. The protected element is configured including a p-n junction diode between an anode region and a cathode region, and is arranged in an active layer of a substrate. The periphery of the diode is surrounded by an element isolation region. The contact region is arranged at a portion on a main face of the anode region, and is set with a same conductivity type as the anode region, and set with a higher impurity concentration than the anode region. The wiring is arranged over the diode. One end portion of the wiring is connected to the contact region and another end portion extends over a passivation film. The channel stopper region is arranged at a portion on the main face of the anode region under the wiring between the contact region and the element isolation region, and is set with an opposite conductivity type to the contact region.

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First Claim

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Patent Owner(s)

  • KABUSHIKI KAISHA TOKAI-RIKA-DENKI-SEISAKUSHO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kataoka, Yoshikazu Aichi-ken, JP 24 436

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