Gallium arsenide and silicon FET-type switches for repetitive pulsed power applications

Xianyue Gu, Charles W. Myles, Andras Kuthi, Qiong Shui, Martin A. Gundersen

Research output: Contribution to journalConference articlepeer-review


Repetitive pulsed-power generators with nanosecond rise times and multi-kilovolt outputs commonly employ silicon MOSFET switches. Gallium arsenide FET switches hold the promise of faster operation, higher voltage hold-off, and greater current densities. The realization of this promise requires an understanding of the physical and practical limits of Si- and GaAs-based devices. In this paper, the results of ATLAS simulations on a Si MOSFET and on a GaAs SIT are presented. The results show that GaAs-based devices are superior to those based on Si in terms of switching speeds and power dissipation, but that they have a relatively higher leakage current.

Original languageEnglish
Pages (from-to)437-440
Number of pages4
JournalIEEE Conference Record of Power Modulator Symposium
StatePublished - 2002
EventConference Record of the Twenty-Fifth International Power Modulator Symposium and 2002 High-Voltage Workshop - Hollywood, CA, United States
Duration: Jun 30 2002Jul 3 2002


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