Patent ID: 6316791
Filing Date: 2001-11-13
Classification: H01L

Abstract:
A semiconductor structure having breakdown behavior and forward resistance, comprising;semiconductor region made of a predetermined .alpha.-silicon carbide polytype other than a 4H and a 6H polytype;an electrically insulating region;a planar interface between said semiconductor region and said electrically insulating region;a channel zone adjoining said planar interface in said semiconductor region;an energy gap of said semiconductor region less than that of the 6H silicon carbide polytype;said electrically insulating region containing a thermal silicon oxide or a silicon nitride at least in a layer adjoining said interface;the electrical conductivity in the silicon carbide region at said interface to be altered by induced charges; anda current controllable by the variable electrical conductivity adjoining said planar interface in said silicon carbide region guided laterally in said channel zone.