Appeal No. 96-2614
Application 08/098,740
constant resistor by biasing the transistor with a constant
biasing voltage” (Examiner’s Answer at page 10). The only
evidence the examiner cited in support of the finding
concerning using transistors as resistors is Carroll. The
examiner stated (Answer at pages 8-9) that “Carroll teaches
transistors can be used as resistors,” that “[Carroll’s]
transistor operates as a switch but also as a resistor when it
is turned on,” and that “the resistance across the channel of
the [Carroll] transistors is desirable and intentional.”
We agree with the appellant that the examiner’s reading
of Carroll is misplaced and erroneous. The fact that
transistors have intrinsic resistance/conductance does not
translate or equate to a general teaching for using
transistors as resistors. That such intrinsic resistance can
be selected to vary the operating characteristics of a
transistor in one way or another as a switch, either for
changing the acquisition time or for affecting charge
injection, is not a suggestion for using the transistor as a
resistor. We have read the portions of Carroll cited by the
examiner, i.e., column 1, lines 20-48, and column 2, line 67
to column 3, line 67, and do not find therein any teaching or
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