Patent ID: 7518185

Claim:
A semiconductor component comprising: a semiconductor layer of a first conductivity type having a first charge density, a first surface formed with first and second trenches, and a channel region formed adjacent the first trench; a control electrode in the first trench; an electrically insulative layer in the first trench between the semiconductor layer and the control electrode; a first region having a second conductivity type and a second charge density balancing the first charge density to form a superjunction structure, and having a first portion at a first side of the first trench and adjoining a sidewall of the second trench; and a semiconductor substrate disposed adjacent to the semiconductor layer, wherein the semiconductor substrate has the first conductivity type and a charge density greater than the first and second charge densities, and wherein the first region extends along a height of the semiconductor layer from the semiconductor substrate toward the first surface, and wherein the first region is contiguous with a surface of the semiconductor substrate.