Two-dimensional simulation of thyristor transient states from conduction to forward blocking

摘要

A two-dimensional thyristor structure including the shorted cathode emitter was investigated in transient as well as in steady-state conditions. The investigations focused on the transients from conduction to forward blocking state of an SCR. The results presented indicate that the introduction of emitter shorts into a thyristor structure makes all phenomena inside the structure at least two-dimensional, and significantly affects the dynamic as well as the static characteristics of the device. The calculations were performed on a PC/AT personal computer, using an original program for 2-D simulation of semiconductor devices.