US 20070011637A1
(i9) United States
(12) Patent Application Publication oo) Pub. No.: US 2007/0011637 Al
Seidl et al. (43) Pub. Date: Jan. 11,2007
Compute eel! pair graph 1000
i
Step through virtual inverse layout tree (ILT) using
the cell pair graph in post order (bottom first) and
generate input pattern
