A continuous, analytic drain-current model for DG MOSFETs

被引：316

作者：

Taur, Y ^{[1
]}

Liang, XP ^{[1
]}

Wang, W ^{[1
]}

Lu, HX ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA

来源：

IEEE ELECTRON DEVICE LETTERS | 2004年 / 25卷 / 02期

关键词：

modeling; MOSFETs; transistors;

D O I：

10.1109/LED.2003.822661

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter presents a continuous analytic current-voltage (I-V) model for double-gate (DG) MOSFETs. It is derived from closed-form solutions of Poisson's equation, and current continuity equation without the charge-sheet approximation. The entire I-ds(V-g, V-ds) characteristics for all regions of MOSFET operation: linear, saturation, and subthreshold, are covered under one continuous function, making it ideally suited for compact modeling. By preserving the proper physics, this model readily depicts "volume inversion" in symmetric DG MOSFETs-a distinctively noncharge-sheet phenomenon that cannot be reproduced by standard charge-sheet based I-V models. It is shown that the I-V curves generated by the analytic model are in complete agreement with two-dimensional numerical simulation results for all ranges of gate and drain voltages.

引用

页码：107 / 109

页数：3

共 6 条

[1] CHARGE-SHEET MODEL OF MOSFET [J].

BREWS, JR .

SOLID-STATE ELECTRONICS, 1978, 21 (02) :345-355

[2] Device scaling limits of Si MOSFETs and their application dependencies [J].

Frank, DJ ;

Dennard, RH ;

Nowak, E ;

Solomon, PM ;

Taur, Y ;

Wong, HSP .

PROCEEDINGS OF THE IEEE, 2001, 89 (03) :259-288

[3] EFFECTS OF DIFFUSION CURRENT ON CHARACTERISTICS OF METAL-OXIDE (INSULATOR)-SEMICONDUCTOR TRANSISTORS [J].

PAO, HC ;

SAH, CT .

SOLID-STATE ELECTRONICS, 1966, 9 (10) :927-+

[4] Analytic solutions of charge and capacitance in symmetric and asymmetric double-gate MOSFETs [J].

Taur, Y .

IEEE TRANSACTIONS ON ELECTRON DEVICES, 2001, 48 (12) :2861-2869

[5]

Taur Y., 1998, FUNDAMENTALS MODERN

[6]

TAUR Y, 2000, IEEE ELECTR DEVICE L, V21, P245

← 1 →