Help: hierarchy LVS incorrect in PEX

Discussion created by qianyue79 on Jul 21, 2011
Latest reply on Aug 3, 2011 by qianyue79

When doing hierarchical PEX , the LVS is incorrect with H-cells which is generated by H-cells analysis.  In nmLVS , it is correct with H-cells.

PEX warning --- there are most cells in hcell not found in layout - ignored  and  most cells listed in the xcell file has no device and will not be extracted as an xcell.

And file xcells is same with hcells here.

Basically  hierarchy LVS is correct in nmLVS with H-cells , and incorrect in hierarchical PEX LVS with H-cells.

Anyone can help? Thanks