Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

parameters for mmos in cadence

Status
Not open for further replies.

dipanjan

Member level 2
Joined
Sep 9, 2010
Messages
50
Helped
4
Reputation
8
Reaction score
4
Trophy points
1,288
Activity points
1,709
in cadence the various parameters for gpdk090 library for a mos are given in the scs file.the parameters are given under various sections namely section tt s1v/ section ff s1v and so on
can neone tell me what is the meaning of those sections. and what do they signify
thank you in advance
 

They are the corners of that process, They are used to see if the circuit will still be in spec when NMOS transistors are "slower" than PMOS and vice-versa.

For NMOS,PMOS
tt - Typical, Typical
ff - Fast, Fast
ss - Slow, Slow
sf - Slow, Fast
fs - Fast, Slow

If your circuit simulation results are as expected in all the corners then there is "some" level of assurance that a "decent" number of chips will function properly after fabrication. For even "more" assurance you need to run Monte-Carlo analysis which varies the parameters of transistors statistically rather than fixed values like "slow" or "fast"

BTW, when you simulate by default the model used is "tt" typical,typical.
 

can u elaborate on the monte carlo analysis and the speed of operatn...how are the parameters changing.
if u hav ne material i can read thru it would be very helpfull.thank you for your time.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top