Appeal No. 2000-0131
Application No. 08/800,972
a third MOSFET connected between said body and said drain
terminal, said third MOSFET having a third gate connected to said
source terminal; and
a gate control circuit, said gate control circuit alternately
biasing said first gate to a voltage at said body so as to turn
said first MOSFET off or to a positive voltage so as to turn said
first MOSFET on,
wherein said second MOSFET is adapted to turn on and conduct a
first current between said body and said source terminal at a
voltage drop across said second MOSFET which is less than a first
voltage drop required to turn on said first intrinsic diode and
said third MOSFET is adapted to turn on and conduct a second
current between said body and said drain terminal at a voltage drop
across said third MOSFET which is less than a second voltage drop
required to turn on said second intrinsic diode.
The Examiner’s Answer cites the following prior art
references:
Fuller et al. (Fuller) 4,847,522 Jul. 11, 1989
Moyer et al. (Moyer) 5,430,403 Jul. 04, 1995
(filed Sep. 20, 1993)
Claims 16-20, 24-29, and 31 stand finally rejected under
35 U.S.C. § 103(a) as being unpatentable over Fuller.2
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