J. Yedinak, B. Wood, P. Shenoy, G. Dolny, D. Lange, T. Morthorst
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引用次数: 8
Abstract
In this paper, we analyze the UIS capability of punchthrough (PT) IGBTs both experimentally, and through non-isothermal two-dimensional numerical simulations. It is shown that the UIS failure mechanism is determined by the open-base p-n-p structure inherent in the IGBT. By optimizing the open base p-n-p, avalanche induced second breakdown can be prevented at current densities in excess of 1000 A/cm/sup 2/. A 600 V PT-IGBT with low on-state voltage, fast switching, and >4.5 J/cm/sup 2/ UIS capability at 120 A/cm/sup 2/ is experimentally demonstrated.
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