The PSP Model in RF CMOS Design
While the Penn State Philips (PSP) transistor model is rightly hailed as an excellent alternative to traditional BSIM models for RFIC design, RF designers need to be aware of how PSP models relate to actual device behavior. PSP models do require some judgment on the part of model developers. Equally important is an understanding of the way these models are used in an RF Process Design Kit (PDK). Simply including PSP models in a PDK does not guarantee that designers get all of the advantages in simulation accuracy and efficiency promised by the improved modeling technique. Today's RF PDKs must support the models appropriately and also provide capabilities such as statistical evaluations and an effective inductance tool.