Distributed high voltage JFET

Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Junction field effect transistor

Reexamination Certificate

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Details

C257S285000, C257SE21630, C438S186000

Reexamination Certificate

active

07605412

ABSTRACT:
A Junction Field Effect Transistor (JFET) can be fabricated with a well region that include a channel region having an average dopant concentration substantially less the average doping concentration of the remaining portions of the well region. The lower average doping concentration of channel region compared to the remaining portions of the well region reduces the pinch-off voltage of the JFET.

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patent: 2003/0117825 (2003-06-01), Liaw et al.
patent: 2004/0222475 (2004-11-01), Hao et al.
U.S. Appl. No. 12/176,488.

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