Modeling and design of a low-voltage SOI suspended-gate MOSFET (SG-MOSFET) with a metal-over-gate architecture

被引:46
作者
Ionescu, AM [1 ]
Pott, V [1 ]
Fritschi, R [1 ]
Banerjee, K [1 ]
Declercq, MJ [1 ]
Renaud, P [1 ]
Hibert, C [1 ]
Fluckiger, P [1 ]
Racine, GA [1 ]
机构
[1] Swiss Fed Inst Technol, Elect Lab LEG, CH-1015 Lausanne, Switzerland
来源
PROCEEDING OF THE 2002 3RD INTERNATIONAL SYMPOSIUM ON QUALITY ELECTRONIC DESIGN | 2002年
关键词
Analytical models; Biomembranes; Micromechanical devices; MOS capacitors; MOSFET circuits; Radio frequency; Radiofrequency microelectromechanical systems; Switches; Switching circuits; Voltage;
D O I
10.1109/ISQED.2002.996794
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
A novel MEMS device architecture: the SOI SG-MOSFET, which combines a solid-state MOS transistor and a sits vended metal membrane in a unique metal-over-gate architecture, is proposed. A unified physical analytical model (weak, moderate and strong inversions) is developed and used to investigate main electrostatic characteristics in order to provide first-order design criteria for low-voltage operation and high-performance. It is demonstrated that the use of a thin gate oxide (<20nm) is essential for a high C-on/Co-ff ratio (>100) and a low spring constant (<100N/m) is needed for low voltage (<5V) actuation. An adapted fabrication process is reported.
引用
收藏
页码:496 / 501
页数:6
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