A simple and analytical parameter-extraction method of a microwave MOSFET

A simple and accurate parameter-extraction method of a high-frequency small-signal MOSFET model including the substrate-related parameters and nonreciprocal capacitors is proposed. Direct extraction of each parameter using a linear regression approach is performed by Y-parameter analysis on the proposed equivalent circuit of the MOSFET for high-frequency operation. The extracted results are physically meaningful and good agreement has been obtained between the simulation results of the equivalent circuit and measured data without any optimization. Also, the extracted parameters, such as g/sub m/ and g/sub ds/, match very well with those obtained by DC measurement.

[1]  R. Gharpurey,et al.  RF MOSFET modeling accounting for distributed substrate and channel resistances with emphasis on the BSIM3v3 SPICE model , 1997, International Electron Devices Meeting. IEDM Technical Digest.

[2]  Paul R. Gray,et al.  CMOS RF modeling for GHz communication IC's , 1998, 1998 Symposium on VLSI Technology Digest of Technical Papers (Cat. No.98CH36216).

[3]  G. Dambrine,et al.  A new method for determining the FET small-signal equivalent circuit , 1988 .

[4]  P.K. Chatterjee,et al.  An Investigation of the Charge Conservation Problem for MOSFET Circuit Simulation , 1983, IEEE Journal of Solid-State Circuits.

[5]  M.J. Deen,et al.  An effective gate resistance model for CMOS RF and noise modeling , 1998, International Electron Devices Meeting 1998. Technical Digest (Cat. No.98CH36217).

[6]  P. Bendix,et al.  Extraction of high-frequency equivalent circuit parameters of submicron gate-length MOSFET's , 1998 .

[7]  Ban-Leong Ooi,et al.  A novel approach for determining the GaAs MESFET small-signal equivalent-circuit elements , 1997 .

[8]  Cheon Soo Kim,et al.  Unique extraction of substrate parameters of common-source MOSFETs , 1999 .

[9]  Mau-Chung Frank Chang,et al.  High-frequency application of MOS compact models and their development for scalable RF model libraries , 1998, Proceedings of the IEEE 1998 Custom Integrated Circuits Conference (Cat. No.98CH36143).

[10]  Y. Tsividis Operation and modeling of the MOS transistor , 1987 .

[11]  Martin L. Schmatz,et al.  A nonlinear microwave MOSFET model for SPICE simulators , 1998 .