Surface field distribution and breakdown voltage of RESURF LDMOSFETs
An approximate but analytical expression for the surface field distribution of RESURF LDMOSFETs is presented in terms of the device parameters and the applied drain voltage, which allows calculation of the breakdown voltage via the surface field as a function of the epitaxial layer length. Analytical results are in fair agreement with numerical simulations as well as experimental results reported.
breakdown voltage ldmosfet reduced surface field technique