supermoment
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I use global foundry (ex Chartered semiconductor). It has two options, normal PDK (digital), and the other one is RFCMOS PDK.
The digital PDK has a calculated PD, PS, AD, AS in the netlist whereas RFCMOS does not have this in the netlist since parasitic has embedded somewhere. Besides this, the parameter for RFCMOS has longer and need long simulation time. In term of layout, it has fixed structure like guardring, double gate contact etc..
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