Re: Layout question
ANSWERS:
1,the leftmost green region is the PMOS Ndiff region,it is connected with The source of PMOS and both are connected to VDD,the Ndiff is to provide a electrical connection to the Nwell.And so the Pdiff in the NMOS.
2.In the Drain and source formation step in fabrication,the Poly gate can be used to mask the channel region,and the dope can only be diffused or implanted in the unmasked sourec and drain region,the channel is masked and not influced,this is the self aligned process.
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