Million Atom Electronic Structure and Device Calculations on Peta-Scale Computers
Sunhee Lee
Hoon Ryu
Zhengping Jiang
Klimeck, G.
Network for Comput. Nanotechnol., Purdue Univ., West Lafayette, IN
This paper appears in: Computational Electronics, 2009. IWCE '09. 13th International Workshop on Publication Date: 27-29 May 2009
On page(s):
1
- 4
Location: Beijing
ISBN: 978-1-4244-3925-6
Digital Object Identifier: 10.1109/IWCE.2009.5091117
Current Version Published: 2009-06-23
Abstract
Semiconductor devices are scaled down to the level which constituent materials are no longer considered continuous. To account for atomistic randomness, surface effects and quantum mechanical effects, an atomistic modeling approach needs to be pursued. The Nanoelectronic Modeling Tool (NEMO 3-D) has satisfied the requirement by including empirical sp3s* and sp3d5s* tight binding models and considering strain to successfully simulate various semiconductor material systems. Computationally, however, NEMO 3-D needs significant improvements to utilize increasing supply of processors. This paper introduces the new modeling tool, OMEN 3-D, and discusses the major computational improvements, the 3-D domain decomposition and the multi-level parallelism. As a featured application, a full 3-D parallelized Schrodinger-Poisson solver and its application to calculate the bandstructure of delta doped phosphorus(P) layer in silicon is demonstrated. Impurity bands due to the donor ion potentials are computed.
Index
Terms
Available to subscribers and IEEE members.
References
Available to subscribers and IEEE members.
Citing Documents
Available to subscribers and IEEE members.
You are not
logged in.
Guests
may access Abstract records free of charge.
Cart
