On the efficient methods to solve multi-subband BTE in 1D gas systems: Decoupling approximations versus the accurate approach

For the deterministic MSBTE solver in 1D gas systems, efficient methods including the accurate approach, the decoupling of even-odd components of the distribution function (f e -f o decouple), and the decoupling of subband index and subband energy (RTA) have been implemented. For 3D MOSFET simulatio...

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Bibliographic Details
Published in2016 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) pp. 189 - 192
Main Authors Anh-Tuan Pham, Zhengping Jiang, Seonghoon Jin, Jing Wang, Woosung Choi, Pourghaderi, Mohammad Ali, Jongchol Kim, Keun-Ho Lee
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2016
Subjects
Couplings
Distribution functions
Gold
Mathematical model
MOSFET
Scattering
Semiconductor process modeling
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Summary:For the deterministic MSBTE solver in 1D gas systems, efficient methods including the accurate approach, the decoupling of even-odd components of the distribution function (f e -f o decouple), and the decoupling of subband index and subband energy (RTA) have been implemented. For 3D MOSFET simulations, compared to the accurate approach, the f e -f o decouple approach helps to retain the accuracy of drain current calculation, and, at the same time, significantly reduce the turn-around-time as well as the memory usage. The hybrid scheme combining the decouple and the RTA approach is a good option to improve further the efficiency, while high accuracy of the drain current calculation is remained.
ISSN:1946-1577
DOI:10.1109/SISPAD.2016.7605179