empty cells ??? help plz :)

Discussion created by eng.marwa_ahmed on Jun 21, 2010
Latest reply on Jun 24, 2010 by yijun_tong


i wonder about a problem opening a layout in calibre DESIGNrev

when i open the layout , in the terminal it reports this message (for all cells in the layout).. an example of this message is as following :

WARNING: Cell CLKINVX1 is referenced but not defined. Empty cell used.

N.B. this is an ASIC design . and i use synopsys design compiler for synthesis and cadence first encounter for placement and rounting . calibre for verification .


can u plz explain for me this message ?


is this warning will affect my DRC , LVS and PEX run ?


thx very much