Patent ID: 8906767

Claim:
A method comprising: forming a metal oxide device over a substrate, wherein forming the metal oxide device includes: forming a first and second doped regions disposed within the substrate, the first and second doped regions interfacing in a channel region, the first region underlying a first shallow trench isolation (STI) feature and the second doped region underlying a second STI feature, the first and second doped regions being doped with a first type dopant, the first doped region having a different concentration of dopant than the second doped region; and forming a gate structure traversing the channel region and the interface of the first and second doped regions and separating source and drain regions, the source region being formed within the first doped region and the drain region being formed within the second doped region, the source and drain regions being doped with a second type dopant, the second type dopant being complementary to the first type dopant.