Important Role of Parasitic Regions in Electrical Characteristics of SiC MESFETs


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Because SiC does not have velocity overshooting behaviour, the current density of SiC metal-semiconductor field-effect transistors (MESFETs) is restricted by low drift velocity in the parasitic region between source and gate where the applied electric field is low. In addition, the extension of the depletion region toward the drain side at high drain voltages increases the effective channel length and, as a result, lowers the cut-off frequency due to the increased transit time.



Materials Science Forum (Volumes 483-485)

Edited by:

Dr. Roberta Nipoti, Antonella Poggi and Andrea Scorzoni




H. Y. Cha et al., "Important Role of Parasitic Regions in Electrical Characteristics of SiC MESFETs", Materials Science Forum, Vols. 483-485, pp. 861-864, 2005

Online since:

May 2005




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