A methodology for projecting SiO2 thick gate oxide reliability on trench power MOSFETs and its application on MOSFETs VGS rating
We present reliability results of thick gate oxides on power trench MOSFETs. We derive activation energy & field acceleration parameters from Trench MOSFETs. We comment on VGS rating for continuous & mission profile operation of MOSFET. We examine the effect of gate oxide thickness variation across Wafer on VGS rating. We report VGS rating of 12V for a Logic level MOSFET for 10years at Tj(max)=175C.
thick gate oxide reliability vgs rating trench mosfets tddb e-model weibull