Patent ID: 8723238

Claim:
A transistor comprising: a semiconductor substrate of a first conductivity type, the semiconductor substrate having a first surface and a second surface; a first semiconductor region of the first conductivity type on the first surface of the semiconductor substrate; a second semiconductor region formed within the first semiconductor region wherein a first portion of the first semiconductor region underlies the second semiconductor region, the second semiconductor region having a second conductivity type; a gate structure formed in an opening that extends from the second semiconductor region into the first portion of the first semiconductor region wherein the opening separates the second semiconductor region into a first current carrying electrode region and a second current carrying electrode region; a gate conductor of the gate structure formed within the opening and overlying the first portion of the first semiconductor region wherein a first side of the first current carrying electrode region is adjacent one side of the gate conductor and spaced laterally from the gate conductor and the second current carrying electrode region is adjacent a different side of the gate conductor and spaced laterally from the gate conductor; a shield conductor overlying the gate conductor; and a shield insulator between the gate conductor and the shield conductor.