Patent ID: 7005353

Claim:
A method of fabricating a semiconductor device on a semiconductor substrate of a first polarity, said method comprising: forming a drain region within an epitaxial layer of the semiconductor substrate, the drain region being lightly-doped with a dopant of the first polarity; forming a well region in the drain region, said well region being lightly-doped with a dopant of a second polarity; forming a source region within the well region, the source region being heavily doped with a dopant of the first polarity; forming a first dielectric layer covering predetermined exposed portions of the source, drain and well regions; forming a switching electrode over a portion of the first dielectric layer, respective portions of the switching electrode being coplanar with the source and well regions; forming at least one shielding electrode over a portion of the first dielectric layer, respective portions of the shielding electrode being coplanar with the drain region, well region, and the switching electrode; and forming a second dielectric layer between the switching and shielding electrodes.