DocumentCode :
242408
Title :
Comparative study of triangular-shaped silicon nanowire transistors
Author :
Yi-Bo Zhang ; Lei Sun ; Hao Xu ; Jing-Wen Han ; Yi Wang ; Sheng-Dong Zhang
Author_Institution :
Inst. of Microelectron., Peking Univ., Beijing, China
fYear :
2014
fDate :
28-31 Oct. 2014
Firstpage :
1
Lastpage :
3
Abstract :
Nanowire transistors with triangular cross sections (TNWTs) are proposed and studied. TNWT´s working mechanism and the influence of physical parameters on device performance are investigated with TCAD tools. It is found that TNWT´s conducting area expands from the channel center to the triangle´s vertices with higher gate bias. TNWT has larger cross section than its counterpart with inscribed circle nanowire, thus exhibiting higher drain current and cut-off frequency. TNWT with longer channel length shows less influence from DIBL, and requires lower gate work function to achieve proper bias. Moreover, we also find that TNWT with moderate angle is less affected by SCE, and shows lower subthreshold slope.
Keywords :
MOSFET; nanowires; semiconductor device models; DIBL; SCE; TCAD tools; TNWT; conducting area; gate work function; inscribed circle nanowire; triangular cross sections; triangular-shaped silicon nanowire transistors; Current density; Cutoff frequency; Logic gates; Mathematical model; Performance evaluation; Transistors;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
Type :
conf
DOI :
10.1109/ICSICT.2014.7021630
Filename :
7021630
Link To Document :
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