Title
On discrete random dopant modeling in drift-diffusion simulations: physical meaning of `atomistic' dopants
Abstract
We investigate the physics behind the `atomistic' dopant model widely used in drift-diffusion (DD) simulators for the study of statistical threshold voltage variations in ultra-small MOSFETs. It is found that the conventional dopant model, when extended to the extreme atomistic regime, becomes physically inconsistent with the concepts of electric potential presumed in DD device simulations. The split of the Coulomb potential between the long-range and short-range parts associated with discretized dopants is critical for the device simulations under the atomistic regime. A new dopant model to overcome such problems for 3-dimensional DD simulations is proposed by employing this idea.
Year
DOI
Venue
2002
10.1016/S0026-2714(01)00138-X
Microelectronics Reliability
Keywords
Field
DocType
3 dimensional,coulomb potential,threshold voltage
Statistical physics,Discretization,Dopant,Voltage,Electronic engineering,Electric potential,Engineering,Threshold model
Journal
Volume
Issue
ISSN
42
2
0026-2714
Citations 
PageRank 
References 
5
1.08
0
Authors
4
Name
Order
Citations
PageRank
Nobuyuki Sano161.87
Kazuya Matsuzawa273.18
Mikio Mukai351.08
Noriaki Nakayama4308.95