Appeal No. 1996-3113
Application 08/099,243
the transistor and substrate. In their reply brief,
Appellants argue:
Most representations of bipolar transistors
show only three connections to the bipolar
transistor: emitter, base, and collector. (In some
cases multiple-emitter or multiple-collector devices
have been proposed, and multiple collectors
naturally imply the possibility of multiple separate
collector currents.) The types of current which are
considered in Tatsuya are only the usual three,
namely emitter, collector, and base currents
(although there are two collector current
components, from the two collectors).
By contrast, the present application
extensively discusses, and shows how to use, a
FOURTH type of current component, namely the
substrate current. As extensively discussed in the
application (and also shown by the expert
testimony), substrate current is not the same as
emitter current, base current, or collector current.
(Emphasis added.)
Appellants have also submitted a Rule 132 Declaration
from Richard A. Blanchard stating:
It is NOT TRUE that “Tatsuya’s leaked
current to the substrate is continually
monitored/generated as the potential across the
sensing resistor 26 and that potential is compared
with the forward voltage drops of the diode 28.”
Resistor 26 measures auxiliary collector current,
NOT substrate current. Tatsuya deals ONLY with the
three basic types of current which are used in
normal circuit connections of bipolar transistors,
namely base, collector and emitter currents. The
current application deals with a fourth type of
current, the substrate current. (Paragraph No. 12.)
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