Logarithm cofactor difference extrema method of mosfet's post-breakdown current and application to parameter extraction

摘要

This paper proposed an advanced logarithm cofactor difference operator (LogCDO) method to extract parameters of the MOS devices' post-breakdown current. The experimental results of the post breakdown current at different temperature are used to validity the LogCDO method. The postbreakdown current of MOS device is first equivalent to a double diode circuit model, and then the improved LogCDO method is applied to extract key parameters. The extraction results are consistent very well with the measured data even over a wide range of temperature.