Study of Controlled Hole Injection LIGBT

Controlled hole injection LIGBT (CI LIGBT) is proposed in the paper,which can effectively control the hole injection with high anode voltage,and its latch up free characteristics can be improved.Numerical simulation and experiment indicate that its trade off between on state voltage and latch up free characteristics can be realized by the optimization of the anode junction depth,the breakdown voltage of the p +n + junction and the sampling resistance.