AC and transient analysis of SJ VDMOS

In this paper, first time we propose a simple and accurate high frequency small signal model for Superjunction (SJ) Double Diffused MOS (VDMOS). Using this model we obtained the maximum switching frequency (f
_T
) and it results are validated by numerical numerous simulator. Further, we have analyzed transient, ac and switching frequency response of the SJ VDMOS.