Designer’s Guide Community

‹ Previous topic | Next topic ›

Pages: 1

Unrealatic simulation of Fmax for IBM90nm in cadence (Read 1765 times)

nadroit

Junior Member

Offline

Posts: 14

Unrealatic simulation of Fmax for IBM90nm in cadence
Jul 12^th, 2012, 8:49am

Hello All,
I am trying to measure Fmax of IBM 90nm technology in cadence. I am measuring S parameters and plotting Gumx. I get Fmax around 500GHz for 90nm while reported Fmax for 90nm are around 300GHz. I am using rfmos transistor & technology uses BSIM4.4 model. I am not sure what I am doing wrong please help.

Thanks

IP Logged

Geoffrey_Coram Senior Fellow Offline Posts: 1998 Massachusetts, USA	Re: Unrealatic simulation of Fmax for IBM90nm in cadence Reply #1 - Jul 18^th, 2012, 10:01am Are you including any layout parasitics? The metal stack that's needed to connect to the device can add a lot of capacitance, which may not be accounted for in the rfmos model.
Back to top	If at first you do succeed, STOP, raise your standards, and stop wasting your time. IP Logged

Pages: 1

‹ Previous topic | Next topic ›