Hu C. – Page 2 – TechConnect Briefs

Compact Modeling for RF and Microwave Integrated Circuits

Niknejad A.M., Chan M., Hu C., Brodersen B., Xi J., He J., Emami S., Doan C., Cao Y., Su P., Wan H., Dunga M., Lin C.H., University of California at Berkeley, US

Compact modeling has been an integral part of the design of integrated circuits for digital and analog applications. The availability of scalable CMOS device models has enabled rapid simulation and design of present and future [...]

A Framework for Generic Physics Based Double-Gate MOSFET Modeling

Chan M., Taur Y., Lin C.H., He J., Niknejad A., Hu C., Hong Kong University of Science & Technology, HK

This paper presents a framework to develop a generic and physical Double-Gate MOSFET model. Due to limited available physical data and existence of a large variety of device structures, flexibility to assemble model modules to [...]

An Advanced Surface-Potential-Plus MOSFET Model

He J., Xi X., Chan M., Niknejad A., Hu C., University of California at Berkeley, US

Like other surface-potential based model, our surface-potential-plus model starts with charge-sheet approximation, uses the quasi-Fermi-potential to integrate drift and diffusion current and formulates an inversion charge equation that can be analytically solved for given terminal [...]

Quasi-2D Compact Modeling for Double-Gate MOSFET

Chan M., Man T.Y., He J., Xi X., Lin C.H., Lin X., Lin C.H., Lin X., Ko P.K., Niknejad A.M., Hu C., Hong Kong University of Science and Technology, HK

This paper presents an approach to model the characteristics of undoped Double-Gate MOSFETs without relying on the charge-sheet approximation. Due to the extremely thin silicon film used, the inversion charge thickness becomes comparable to the [...]

The Development of Next Generation BSIM for Sub-100nm Mixed-Signal Circuit Simulation

Xi X., He J., Heyderi B., Dunga M., Lin C.H., Heyderi B., Wan H., Chan M., Niknejad A.M., Hu C., University of California at Berkeley, US

This paper describes the next generation BSIM model for aggressively scaled CMOS technology. New features in the model include more accurate non-charge-sheet based physics, completely continuous current and derivatives, and extendibility to non-traditional CMOS based [...]

A Compact Model to Predict Quantized Sub-Band Energy Levels and Inversion Layer Centroid of MOSFET with Parabolic Potential Well Approximation

He J., Chan M., Hu C., University of California-Berkeley, US

A novel analytical model to predict the sub-band energy levels and inversion charge centroid in MOS surface inversion layer with the parabolic potential well approximation has been presented in this paper. Based on coupled solution [...]

Challenges in Compact Modeling for RF and Microwave Applications

Niknejad A., Dunga M., Heydari B., Wan H., Lin C.H., Emami S., Doan C., Xi X., He J., Heydari B., Hu C., University of California at Berkeley, US

Commercial CMOS chips routinely operate at frequencies up to 5 GHz and exciting new opportunities exists in higher frequency bands such as 3-10 GHz, 17 GHz, 24 GHz, and 60 GHz. Many research groups have [...]

Advanced Compact Models for MOSFETs

Watts J., McAndrew C., Enz C., Galup-Montoro C., Gildenblat G., Hu C., van Langevelde R., Miura-Mattausch M., Rios R., Sah C-T, Joint Paper, US

The combination of decreasing MOSFET dimensions and increasing use of MOSFETs for analog and RF application has created the need for advanced compact models for MOSFET circuit design. The first generation of MOSFET models rely [...]

Linear Cofactor Difference Extrema of MOSFETs Drain Current and Their Application in Parameter Extraction

He J., Xi X., Chan M., Niknejad A., Hu C., University of California-Berkeley, US

The linear cofactor difference extrema of metal-oxide-semiconductor field effect transistor (MOSFET) drain current are presented in this paper and their application to extract MOSFET parameters is demonstrated. The extrema of the characteristic drain current are [...]

An Exact Analytic Model of Undoped Body MOSFETs using the SPP Approach

He J., Xi X., Chan M., Niknejad A., Hu C., University of California-Berkeley, US

An exact analytic model for undoped (or lightly doped) body MOSFETs has been derived in this paper by incorporating the mobile charge density in the 1-D Poissons equation. The formulation starts with deriving a close [...]