Appeal No. 1997-3484
Application 08/089,359
layer and a second region could have a substrate, a
power-channel layer, and a wide bandgap layer. The same
planar layer in Takikawa could have different functions in
the different regions because the regions are separated by
an isolation region 11. Of course, the same planar region
on the same side of the isolation region 11 cannot have
different functions. However, the Examiner's interpretation
fails to account for the language that both the first source
and drain contacts and second source and drain contacts are
recited to be "driven into said material structure," which
requires the same "material structure" in both active
regions, not just parts of this structure.
The Examiner makes at least three errors.
First, Takikawa does not disclose the same four layers
in the two different regions and, therefore, does not
disclose that the contacts are "driven into said material
structure."
Second, we agree with Appellants' argument (Br4) that
Takikawa does not disclose "a first gate contact to said
low-noise buffer layer." The Examiner relies on potential
barrier layer 5 in Takikawa as the wide bandgap layer in
- 5 -
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007