Appeal No. 95-3265
Application 08/047,162
This is a decision on appeal from the final rejection
of claims 1 through 22, all of the claims pending in the
application.
The invention pertains to techniques for combining one
or more existing integrated circuits onto a single integrated
circuit chip.
Representative independent claim 1 is reproduced as
follows:
1. A method of combining polygon databases defining
mask sets of at least first and second integrated circuit cells
to produce a polygon database defining a mask set for a single
integrated circuit that combines the functions of the first and
second integrated circuit cells, wherein said databases define
the respective first and second cells with at least one design
rule specified differently, comprising the steps of:
editing the polygon databases for at least one of the
first and second integrated circuit cells by making at least one
global change to its polygon data in a manner to cause said at
least one design rule to be specified the same in the databases
of at said at least first and second cells, and
combining the polygon databases in a manner that the
data of the first and second cells occupy non-overlapping first
and second respective mask area regions of the combined
integrated circuit mask set.
The examiner cites the following reference:
Morishita et al. (Morishita) 5,046,012 Sep. 3, 1991
(filed June 15, 1989)
-2-
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 Next
Last modified: November 3, 2007