Simulate fmax of a MOSFET

Luckily one of my colleagues wrote a blog: Measuring Fmax for MOS Transistors

Regards,

Andrew

Hi Andrew, I took a look at your colleague blog and to be honest and with all respect that blog doesn't say absolutely nothing about how to simulate the Fmax of a mosfet. Absolutely nothing. I have put together all the components. It doesn't say which analysis to perform, how to configure, doesn't say if we need to use any expression and it's funny that the author says:

"So, for example, we can measure ft directly in simulation instead of extracting it from s-parameters as we would have to do if we tried to measure it in the lab. On the other hand, simulation also ignores all the higher order device behavior that designers do not specify. As a result, effects that can degrade design performance are ignored."

but doesn't tell how.

I took a look the the other entries in his blog and the same applies.

So I remain in the same step.

Any other suggestion?

Regards

There was an earlier blog (which this was referring to, but didn't give an explicit link):

http://community.cadence.com/cadence_blogs_8/b/rf/archive/2010/12/07/measuring-transistor-fmax

That gives more step-by-step details. The blog I'd posted the link to (which I had found with a quick google search) was really more about the additional things you need to consider when dealing with MOS - and didn't reiterate the details in the earlier blog (which I found by searching through the blogs - reading it I could see it was a follow on from an earlier blog).

Hopefully that gives you more clues. 

Andrew.