why unity gain frequency not improved after change finger?

[maninnet]

in an opamp design, some of the transisters' widths are big that (in the range from
60u to 200u in tsmc0.35 process) i set fingers for all of them in cadence, and i expect parasitic will be reduced such that unity gain frequency will be improved, but the simulation yields the same result, could anyone share some experience?

 

[hung_wai_ming@hotmail.com]

Can u show which so called "fingers" you did change?

 

[maninnet]

for example, the width is 200u, and the default finger is 1, so i change the finger to 10;

and if the width is 50 to 60u, i change finger to 2, somethin like that.

 

[hung_wai_ming@hotmail.com]

Can u show me your netlist?
I doubt you made sth wrong with your netlist
and you'd better show us your netlist to confirm