Patent ID: 7859037

Claim:
A transistor comprising: a semiconductor die; a plurality of transistor segments organized into a plurality of sections, the sections being arranged substantially across the semiconductor die, each section being substantially square, each transistor segment having a racetrack shape with a length and a width, each transistor segment including: a pillar that includes an extended drain region that extends in a vertical direction through the semiconductor die; first and second dielectric regions disposed on opposite sides of the pillar, respectively, the first dielectric region being laterally surrounded by the pillar, and the second dielectric region laterally surrounding the pillar; first and second field plates respectively disposed in the first and second dielectric regions, the first and second field plates being fully insulated from the extended drain region, the first field plate being laterally surrounded by the pillar, and the second field plate laterally surrounding the pillar; wherein a first section comprises transistor segments arranged in a side-by-side relationship with the length oriented in a first lateral direction, and a second section comprises transistor segments arranged in the side-by-side relationship with the length oriented in a second lateral direction substantially orthogonal to the first direction, the first section being disposed adjacent the second section.