Category Archives: Commercial

TCAD Central

One of the other sites I manage is TCAD Central – https://www.tcadcentral.com. It is a resource concerning TCAD and semiconductor device simulation. Some of the content is no longer current. Please let me know if you have any updates or news in this blog or on the TCAD Central site.

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

Genius Device Simulator new release July 2015

Cogenda has a new device simulator release. Features include:

  • New solver for Total-Ionizing Dose (TID) effect.
  • Support simulation of x-ray pulse (dose-rate) effect.
  • Updated material models: diamond, 4H-SiC, GaAsSb, GaP, etc.
  • New VTK data structure to store field values on both sides of an interface in VTK files.
  • Support trap and other customer field definition in TIF files.
  • Added cylindrical mesh generator for modeling devices such as particle detectors.
  • Import several TIF mesh files at a time.
  • and they seem to have incorporated some bug fixes into their simulator. More info is available at http://www.cogenda.com

    If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

    New Genius Device Simulator Release

    There was a new release of the Genius Device Simulator on March 22, 2014 as part of Cogenda’s Visual TCAD suite of tools. From their website:

    http://cogenda.com/article/Release-Notes-VisualTCAD

    • Density-Gradient Model for inversion layer in MOSFET’s
    • Schur-complement numerical solver for Device Circuit Simulation
    • Improved impact-ionization model
    • Self-consistent gate tunneling current mode
    • Mobility and other material property models which matches with another popular TCAD tool
    • 3D analysis of satellite internal-charging problem.
    • minor features and bug fixes

    This is their first release of a public update in over a year. I’m looking forward to their update of their open source version of their project at http://github.com/cogenda/Genius-TCAD-Open

    If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

    MOS-AK GSA December 2013

    Presentations from the 6th International MOS-AK/GSA Workshop on Dec.11, 2013 in Washington DC are now available from http://www.mos-ak.org/washington_dc_2013/.

    It was organized to discuss SPICE/compact modeling and its standardization. There are presentations about the the various compact modeling initiatives going on in industry and academia.

    You can keep track of MOS-AK’s work by signing up for their mailing list at: http://www.mos-ak.org/. They also have a listing of future events concerning compact modeling.

    If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

    Simulating Semiconductor Devices with COMSOL Multiphysics

    Very interesting video about using a multi-physics software to do TCAD Device simulation:
    http://www.comsol.com/semiconductor-module#videos

    Traditionally using a Finite Element approach, they added the ability to use Finite Volume. This is important to use Scharfetter-Gummel to solve the device currents. In their presentation, they discuss how the Finite Element method has difficulty conserving current.

    Their module has limited range of models, but it has the advantage of creating your own expressions for models. Your device may be coupled in a multi-physics system (e.g. Heat Transfer). Using the Finite Volume approach, this has severe limitations, which will be addressed by them in a future release.

    If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

    Announcing TCAD Central

    I’ve started a new website at https://www.tcadcentral.com. It is a wiki dedicated to technology computer aided-design. Please check it out, and let me know if you have suggestions, or would like to participate.

    If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.