Fabrication and characterisation of suspended narrow silicon nanowire channels for low-power nano-electro-mechanical (NEM) switch applications

被引:23
作者
Boodhoo, L. [1 ]
Crudgington, L. [1 ]
Chong, H. M. H. [1 ]
Tsuchiya, Y. [1 ]
Moktadir, Z. [1 ]
Hasegawa, T. [2 ]
Mizuta, H. [1 ,3 ]
机构
[1] Univ Southampton, Nano Res Grp Elect & Comp Sci, Southampton SO17 1BJ, Hants, England
[2] Natl Inst Mat Sci, Atom Elect Grp, Tsukuba, Ibaraki 3050047, Japan
[3] Japan Adv Inst Sci & Technol, Sch Mat Sci, Tokyo, Japan
基金
英国工程与自然科学研究理事会;
关键词
NEMS; Nanowire; Narrow channel; Double suspension; Low power; CMOS compatible; LOGIC;
D O I
10.1016/j.mee.2015.02.047
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
Suspended silicon nanowires with narrow (similar to 10 nm) conduction channel are fabricated and characterised for further development of low power nano-electro-mechanical (NEM) switching devices using CMOS compatible fabrication. Double suspension fabrication process using an amorphous silicon sacrificial layer and xenon difluoride etching is employed for thermally-oxidised suspended Si nanowire channels. Device current-voltage characteristics demonstrate depletion mode operation of heavy doped nanowires with an on/off ratio of 10(5) and a threshold voltage of -1.8 V. In plane electromechanical pull-in to side gate is demonstrated and confirmed to be consistent with finite element analysis. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:66 / 70
页数:5
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