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RESEARCH PRODUCT
Finite-element Discretizations of Semiconductor Energy-transport Equations
Ansgar JüngelPaola PietraStefan Holstsubject
EngineeringSemiconductorComputer simulationDiscretizationbusiness.industryMOSFETMathematical analysisElectronic engineeringElectronEntropy (energy dispersal)businessFinite element methodDiodedescription
Energy-transport models describe the flow of electrons in a semiconductor crystal. Several formulations of these models, in the primal or dual entropy variables or in the drift-diffusion-type variables, are reviewed. A numerical discretization of the steady-state drift-diffusion-type formulation using mixed-hybrid finite elements introduced by Marini and Pietra is presented. The scheme is first applied to the simulation of a one-dimensional ballistic diode with non-parabolic band diagrams. Then a two-dimensional deep submicron MOSFET device with parabolic bands is simulated, using an adaptively refined mesh.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-01 |