Note: Model number 85193CL has been discontinued; however, the feature/capability is now included in the W8540EP/ET.
The information below is provided for reference only.
The MEXTRAM (Most Exquisite Transistor Model) 503/504 BJT model is a public-domain BJT model that has been implemented by IC-CAP through work jointly carried out by Philips Research Labs, TU Delft, and Keysight EEsof EDA. It has been used extensively within Philips and has proven to be extremely robust and accurate. MEXTRAM takes into account many physical phenomena associated with modern BJT technologies, including early voltage bias dependency, explicit modeling of inactive regions, current crowding, and conductivity modulation for base resistance and quasi-saturation.
Sophisticated modeling, including avalanche multiplication, epitaxial collector layer resistance, and charge storage of advanced high frequency transistors are unique features of MEXTRAM. IC-CAP implementation of MEXTRAM version 5O3 and 504 has the most efficient and accurate extraction routines and automation features.