Appeal No. 96-3998
Application No. 08/344,397
the claims pending in the application. Claims 1-15, 17, 19,
and
25-27 have been canceled.
The claimed invention relates to a thermal ink jet
printhead with an incorporated field plated power MOS driver
transistor. Appellants state at page 6 of the specification
that the particular transistor structure illustrated in
Figures 4, 5A, and 5B of the drawings results in a reduction
in size and enhanced transconductance without decreasing
breakdown voltage.
Claim 16 is illustrative of the invention and reads as
follows:
16. A thermal ink jet printhead comprising:
a silicon substrate having a surface;
a plurality of MOS transistors, each of said plurality of
MOS transistors located adjacently to another of said MOS
transistors, each of said MOS transistors comprising,
a) a drain region comprising a contact region formed in
said substrate adjacent said surface and a drift region formed
in said substrate adjacent to said contact region, said drift
region being lateral to and in substantially non-subtending
relation with said contact region;
b) a source region substantially surrounding said drain
region, said source region formed in said substrate adjacent
to said surface, said source region defining with said drift
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007