请问ic工艺仿真中tt ff ss都是什么意思

xiongzhh · 发表于 2011-5-16 13:56:29

1楼已回了。

shikaicool · 发表于 2011-5-16 21:03:47

这三种仿真模式！

shikaicool · 发表于 2011-7-15 13:07:58

thank you

duke2050 · 发表于 2012-10-29 13:23:51

回复 25# lipenghbu

我仿真的情况也是ff情况下管子的阈值电压大，ss时阈值电压小，不知道为什么？

kongliuer · 发表于 2012-10-29 14:33:39

刚看了下自己的model文件，里面ff情况下阈值小，ss下阈值大。这也符合器件物理层规律吧

duke2050 · 发表于 2012-10-29 16:37:35

回复 35# kongliuer

我也看了下模型文件，确实是ff情况下阈值电压要低一些，但是在直流仿真的时候，为什么ff情况下仿真得到的阈值电压要比ss情况下的大了？这与模型文件的描述相反了啊？

talanton · 发表于 2012-11-1 17:17:43

Actually in real life what we simulate in the simulators we don't get exactly that in the physical design.So as every thing is probabilistic you have to ensure that the chipyou fabricate should work in all process corners. .They are what you have listed.Now suppose you have a speed spec.So if the functionality is achieved in all specs then u have to simulate in Slow-Slow corner to figure out the worst case speed.Similarly for power spec u simulate in FF corner as in that corner the Current is maximum as the transistors have low Vt there.

haozhou812 · 发表于 2012-11-1 23:14:03

二楼正解

jack12liang · 发表于 2014-6-1 16:33:34

非常感谢！

峰情万种 · 发表于 2014-6-2 13:25:00

这个是从一个用到的库文件里的截图，可以作为参考应该清楚了吧。。

请问ic工艺仿真中tt ff ss都是什么意思

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