Appeal No. 2002-2086
Application 09/010,396
on the delay DRC, where "DRC is the propagation delay of a signal
along the branch of the net of the segment which couples the
output of the component of the segment to the input of the
component of the next segment of the critical path" (col. 6,
lines 45-49). The limitation of "a second delay that accounts
for a contribution of a portion of the net that does not include
the direct path to the interconnect delay" appears to read on the
delay SACin where "S is the effective resistance of the component,
Cin is the total capacitance of all inputs to which the net of
the segment is coupled" (col. 6, lines 42-44) because this delay
accounts for contributions of capacitances of the net that are
not in a direct path from source to sink. To the extent SACin
includes the capacitance of the sink and might be considered part
of the "first delay," this is merely a matter of grouping terms.
The limitation "wherein calculation of the interconnect delay
comprises" does not exclude other delay terms. Absent some
explanation by appellants as to why this interpretation of the
claims is not reasonable, we sustain the rejection of claims 1,
6-8, 12, 18, and 22.
Group 2 - claims 23-26
These dependent claims recite "wherein modeling the
interconnect comprises utilizing a term that corresponds to a
length of an overlapping wire."
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