600 V-IGBT with reverse blocking capability

A vertical 600 V-50 A IGBT with reverse blocking capability is developed for the first time. Our measurement shows reverse blocking capability up to 900 V. This IGBT can be used as a bi-directional IGBT in combination with another reverse blocking IGBT. Bi-directional IGBTs realize the low-loss AC-AC direct conversion circuit. There is great possibility to improve the performance of the reverse blocking IGBT by utilizing the FZ-NPT-IGBT structure.