The use of extracted BSIM3v3 MOS parameters for fast design of circuits on weak inversion

This work describes a methodology for the extraction of DC parameters of MOS transistors on weak inversion from BSIM3v3 model. Once the optimum model for manual calculations has been defined, the parameters are obtained using the minimum square method. The results show that the proposed method improves the precision of the transistors ´dimensions´ calculations, by giving a determination index r³ to the I vs V relation, which is 99.31% of the worst case, when compared to the BSIM3v3.