Abstract
The authors have developed 4H-SiC trench MOSFETs with orthogonal Deep-P structures (ODSs) to improve the trade-off between the on-resistance and the gate oxide field. The conditions of photolithography to realize a miniaturized Deep-P pattern have been optimized. The fabricated MOSFETs with ODS have demonstrated a low on-resistance of 2 mΩcm2 and a high breakdown voltage of 1.8 kV.
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