syncmaster
Member level 2
cascode layout
I am a beginner in RFIC design, and met some diffcuity in cascode LNA design, May someone could help me.
the following question assume the finger number is 4.
1.Should I merge the drain (common source nmos) with the soure (common gate nmos)?
2.If I merge the 2 nmos, how can I ensure that the parasitic cap of changed cascode 2 nmos is the same with the orignal schematic simulation?
3.What should I do to merge the 2 nmos, to aline them? in AABBBBAA
format or BAABBAAB format?
Thanks for your attention on my posts!
I am a beginner in RFIC design, and met some diffcuity in cascode LNA design, May someone could help me.
the following question assume the finger number is 4.
1.Should I merge the drain (common source nmos) with the soure (common gate nmos)?
2.If I merge the 2 nmos, how can I ensure that the parasitic cap of changed cascode 2 nmos is the same with the orignal schematic simulation?
3.What should I do to merge the 2 nmos, to aline them? in AABBBBAA
format or BAABBAAB format?
Thanks for your attention on my posts!