Integrated circuit including power diode

Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Including high voltage or high power devices isolated from...

Reexamination Certificate

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C257S501000, C257S528000, C257SE27016

Reexamination Certificate

active

11040180

ABSTRACT:
A method of fabricating a semiconductor integrated circuit including a power diode includes providing a semiconductor substrate of first conductivity type, fabricating a integrated circuit such as a CMOS transistor circuit in a first region of the substrate, and fabricating a power diode in a second region in the semiconductor substrate. Dielectric material is formed between the first region and the second regions thereby providing electrical isolation between the integrated circuit in the first region and the power diode in the second region. The power diode can comprise a plurality of MOS source/drain elements and associated gate elements all connected together by one electrode of the diode, and a semiconductor layer in the second region can function as another source/drain of the power diode.

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patent: 2004/0022025 (2004-02-01), Yokogawa et al.
patent: 2004/0084721 (2004-05-01), Kocon et al.

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