A Snapback-Free RC-LIGBT With Separated LIGBT and FWD

A novel Snapback-free RC-LIGBT with Separated LIGBT for forward conduction and anti-parallel FWD (SLF) for the reverse conduction, named SLF LIGBT is proposed and investigated. The SLF features independent LIGBT with N-pillar drift and FWD with P-pillar drift of the Superjunction, which is dielectric isolated by the sio(2), thus the carrier conduction region of the drift is divided into top and bottom two layers. The results show that the snapback is completely eliminated for the proposed SLF-LIGBT, and the excellent forward conduction V-ON and reverse conduction V-R are achieved.