Appeal No. 1999-1647
Application 08/934,088
(pages referred to as "RBr__") for a statement of Appellants'
arguments thereagainst.
OPINION
Claims 17-20
The Examiner finds that Wieder discloses a
phototransistor which can be used in VLSI (very large scale
integration) circuits, but does not disclose integrating
phototransistors and peripheral drive circuit transistors on
the same substrate. The Examiner finds that Tasch teaches
providing display element transistors and peripheral circuit
transistors on the same structure with both types of devices
fabricated from the same layer of material (FR2). The
Examiner concludes that it would have been obvious to provide
the phototransistors of Wieder and the associated drive
circuitry on the same substrate given the suggestion in Tasch
(FR2-3). This obviousness conclusion is not contested and is,
therefore, not at issue on appeal. Nevertheless, we agree
that forming phototransistors and drive transistors on the
same substrate would have been obvious in view of Tasch.
Tasch discloses fabricating liquid crystal- or
electrochromic-type display elements (including address
- 4 -
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007