Simulation and analysis on transient performance of VDMOS

VDMOS has the features of large input impedance, high switching speed and well heat stability. It has been applied widely to motor drive, switch power supply, automotive electronics and energy saving lamp and so on. Currently, the development of VDMOS in our country is still in the starting stage and the research on it is not mature. This paper aims to designing model and simulation study of VDMOS. About the design, it will be calculated from the formation and parameter. The dosage concentration of any parts of the device will be also devised on the basis of breakdown voltage that meets predicted design. Besides, the dynamic characteristics of VDMOS can be simulated through usage of MEDICI software.