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This paper reports the development of symmetric blocking SiC p-GTO thyristors. The proposed thyristor structure features a positive bevel edge termination implemented by orthogonal dicing technique. In this paper, a detailed design of the device structure, forward current-voltage characteristics, and symmetric blocking capabilities are discussed.
Ultra-high voltage (>10 kV) power devices based on SiC are gaining significant attentions since Si power devices are typically at lower voltage levels. In this paper, a world record 22kV Silicon Carbide (SiC) p-type ETO thyristor is developed and reported as a promising candidate for ultra-high voltage applications. The device is based on a 2cm2 22kV p type gate turn off thyristor (p-GTO) structure...
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