DEVSIM TCAD Simulator

DEVSIM

https://devsim.org Version: 1.5.1

This content is also mirrored at https://github.com/devsim/devsim/releases/tag/v1.5.1

• devsim_linux_v1.5.1 Linux x86_64 (64 bit)
• devsim_macos_v1.5.1 macOS High Sierra, Mojave x86_64 (64 bit)
• devsim_win64_v1.5.1 Microsoft Windows 10 x64 (64 bit)
• devsim_msys_v1.5.1 Microsoft Windows 10 x64 (64 bit)

Math Functions

The following inverse functions and their derivatives are now available in the model interpreter.

• erf_inv Inverse Error Function
• erfc_inv Inverse Complimentary Error Function
• derf_invdx Derivative of Inverse Error Function
• derfc_invdx Derivative of Complimentary Inverse Error Function

The Gauss-Fermi Integral, using Paasch's equations are now implemented.

• gfi Gauss-Fermi Integral
• dgfidx Derivative of Gauss-Fermi Integral
• igfi Inverse Gauss-Fermi Integral
• digfidx Derivative of Inverse Gauss-Fermi Integral

Each of these functions take two arguments, zeta and s. The derivatives with respect to the first argument are provided. Please see testing/GaussFermi.py for an example.

In extended precision mode, the following functions are now evaluated with full extended precision.

• Fermi
• dFermidx
• InvFermi
• dInvFermidx

The following double precision tests:

• testing/Fermi1.py Fermi Integral Test
• testing/GaussFermi.py Gauss Fermi Integral Test

Have extended precision variants:

• testing/Fermi1_float128.py
• testing/GaussFermi_float128.py

Installation Script

A new installation script is in the base directory of the package. It provides instructions of completing the installation to the python environment without having to set the PYTHONPATH environment variable. It notifies the user of missing components to finish the installation within an Anaconda or Miniconda environment.

To use the script, use the following command inside of the devsim directory.

    python install.py

The install script will write a file named lib/setup.py, which can be used to complete the installation using pip. The script provides instructions for the installation and deinstallation of devsim.

    INFO: Writing setup.py
    INFO:
    INFO: Please type the following command to install devsim:
    INFO: pip install -e lib
    INFO:
    INFO: To remove the file, type:
    INFO: pip uninstall devsim

Platforms:

• Centos 7 (Linux compatible)
• macOS 10.13
• Microsoft Windows 10 (64 bit)

Notes are available in these files:

• linux.txt
• windows.txt
• macos.txt

Packages required

This software requires a working installation of Python 3 (3.6 or higher).

For macOS, Linux, and Microsoft Windows, the recommended distributions are the following.

Anaconda contains many scientific software packages and is available from: https://anaconda.com.

Miniconda is a much smaller download and is available from: https://conda.io/miniconda.html

Math Libraries

The releases are built against the Intel Math Kernel Library. These libraries are available through Anaconda or Miniconda using the following commands:

• conda install mkl numpy