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A New Device Model of Amorphous Silicon Thin-Film Transistor for Circuit Simulation

  • Hong S. Choi (a1), Jin S. Park (a2), Chang H. Oh (a1), In S. Joo (a2), Yong S. Kim (a2), Min K. Han (a2), Yearn I. Choi (a3), Jung G. Yun (a1), Won K. Park (a1) and Woo Y. Kim (a1)...


We present a new analytical model of amorphous silicon thin-film transistor (a-Si TFT) suitable for circuit simulators such as SPICE. The effects of localized gap state distributions of a-Si as well as temperatures on the a-Si TFT performances have been fully considered in the presented model. The parameters used in SPICE, such as transconductance, channel-length modulation, and power factor of source-drain current, are evaluated from the measured current-voltage and capacitance-voltage characteristics by employing the proposed extraction method. It has been found out that the analytical model is in good agreement with experimental data at both room temperature and elevated temperature and successfully implemented in a widely used circuit simulator.



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[1] lto, H., Nishimura, Y., Nobue, M., Fuse, M., Nakamura, T., Ozawa, T., Tomiyama, S., Weisfield, R., Tuan, H.C., and Thompson, M.J., IEDM Tech. Digest, Washington, D.C. Dec. (1985).
[2] Thompson, M.J. and Tuan, H.C., IEDM Tech. Digest, Los Angeles, Dec. (1986).
[3] Morizono, M., SID 90 Digest, Las Vegas, May (1990).
[4] Tuinenga, P.W., SPICE:A Guide Circuit Simulation & Analysis Using Pspice. (Prentice Hall, New Jersey, 1988).
[5] Shur, M. and Hack, M., J. Appl. Phys. 55 (10) 3831 (1984).
[6] Powell, M.J., IEEE Trans. Electron. Devices ED-36 (12) 2753 (1989).
[7] Choi, H.S., Park, J.S., Oh, C.H., Han, M.K., and Choi, Y.I., Trans, of Korean Institute of Electrical Engineers, 1991 (to be published).
[8] Lustig, N. and Kanicki, J., J. Appl. Phys. 65 (10) 3951 (1989).
Meyer, J.E., RCA Rev. 32 42 (1971).


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