Date of Award


Document Type

Dissertation - Restricted

Degree Name

Doctor of Philosophy (PhD)


Electrical and Computer Engineering

First Advisor

Seitz, Martin A.

Second Advisor

Nigro, N

Third Advisor

Schneider, Susan C.


Progress in solid state power conversion is dependent primarily on advances in the art and science of semiconductor power devices. Supporting components, primarily capacitors of the electrolytic and nonelectrolytic type, are also in need of additional strong development. However, fast recovery semiconductor diodes, and semiconductor switches capable of fast, i.e. micro-second or less, turn on and off are in greatest need. These devices must also have high voltage ratings, i.e., 1200v or higher, to efficiently handle substantial power at industrial 30 480v levels. In many cases higher voltage levels would be desirable. High voltage and high speed create conflicting demands on the design of these components. An additional requirement that is in conflict with both high voltage and fast switching is the need for a low forward voltage in the conducting state...



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