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Semiconductor Device Simulations with COMSOL Multiphysics
August 21, 2014          2:00 pm ET

The Semiconductor Module and COMSOL Multiphysics® provide capabilities for modeling and optimizing semiconductor devices. This module relies on finite element and finite volume methods to solve the semiconductor equations for carrier concentrations and voltage distributions. From these, electric fields and transport properties, such as current and mobility, can be determined.

The Semiconductor Module makes it easy to couple lumped circuits to models of physical devices and to model phenomena such as electrostatics, heat transfer in non-isothermal devices, doping, and generation and recombination processes. Boundary conditions are easily implemented for modeling electric potential, terminals, ground, Ohmic and Schottky contacts, insulating regions, and surface charge accumulation. Predefined mobility models are also available such as the Arora, Fletcher, and Power-law models. The flexibility of the simulation environment also allows users to define their own boundary conditions and mobility models.

This webinar will show the capabilities of this module for modeling these applications, as well as methods available for importing geometry and interfacing COMSOL  with other software programs. A live demonstration will be shown using COMSOL to model the DC characteristics of a MOSFET. The MOSFET model computes the threshold gate voltage at which current flows between the source and drain. The source-to-drain current-voltage characteristics are modeled for a range of gate voltages above the threshold, revealing the saturation and linear regions typical of transistor devices. The webinar will also include a Q&A session.

Simulation of the DC characteristics of a MOSFET transistor.

Why Attend?

This webinar describes the capabilities of the Semiconductor Module and COMSOL Multiphysics®, including:

  • Solving the semiconductor equations using the drift-diffusion formulation
  • Predefined and user-defined boundary conditions and mobility models
  • Modeling physics and processes such as electrostatics, heat transfer, doping, and carrier generation and recombination
  • The ability to interface with other software programs to model semiconductor devices and import device geometry

The presentation will include a Q&A session and a live demonstration showing the simulation of a MOSFET in COMSOL.


Matt Pooley

Matt is a physicist with expertise in quantum optics and semiconductor physics. He joined COMSOL in 2013 and works as a developer on the Semiconductor Module. He holds an MSci in Physics from the University of Nottingham and a PhD in Semiconductor Physics from the University of Cambridge in the UK. Before joining COMSOL, he worked at Toshiba Research Europe Ltd researching semiconductor nonclassical light sources for use in the field of quantum computing.

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