Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2009-02-06
2010-12-07
Lee, Calvin (Department: 2892)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C438S149000
Reexamination Certificate
active
07847354
ABSTRACT:
A semiconductor device comprises a partially depleted semiconductor-on-insulator structure having both a three terminal JFET and a four terminal JFET constructed thereon. The four terminal JFET comprises a source region, a drain region, a channel region, a front gate region, and a back gate region formed in a semiconductor layer of the partially depleted semiconductor-on-insulator structure. The three terminal JFET comprises a source region formed in the semiconductor layer of the partially depleted semiconductor-on-insulator structure, and a drain region spaced apart from the source region and formed in the semiconductor layer of the partially depleted semiconductor-on-insulator structure. The three terminal JFET further comprises a channel region between the source region and the drain region and formed in the semiconductor layer of the partially depleted semiconductor-on-insulator structure. The three terminal JFET also comprises a gate region formed in the semiconductor layer of the partially depleted semiconductor-on-insulator structure. A gate-to-channel junction of the three terminal JFET is formed deep enough in the semiconductor layer such that the channel region of the three terminal JFET abuts an insulating layer of the semiconductor-on-insulator structure.
REFERENCES:
patent: 7291521 (2007-11-01), Orlowski et al.
patent: 2008/0308816 (2008-12-01), Miller et al.
patent: 2010/0171154 (2010-07-01), Saha
Baker & Botts L.L.P.
Lee Calvin
SuVolta, Inc.
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