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Body doping influence in vertical MOSFET design

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5 Author(s)
Riyadi, Munawar A. ; Fac. of Electr. Eng., Univ. Teknol. Malaysia, Skudai, Malaysia ; Napiah, Z.A.F.M. ; Suseno, J.E. ; Saad, I.
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The vertical MOSFET is considered as an alternative to nanoscale device structure, due to relaxed-dependence on lithography and easier double gate realization. In this paper, the influence of body doping concentration variation in vertical MOSFET developed using oblique-rotating implantation (ORI) method is investigated. For this purpose, two-dimensional process simulation was made using TCAD tools for several Nsub, namely 1, 4, 7 ad 10.1018 cm-3, respectively. The electrical characteristic and short channel effect i.e. DIBL and subthreshold swing, for different body doping were deliberated. The result also suggests the required change in the pillar design in maintaining the gate channel.

Published in:

Innovative Technologies in Intelligent Systems and Industrial Applications, 2009. CITISIA 2009

Date of Conference:

25-26 July 2009