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 O N and reverse conduction V R are achieved.

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