Patent ID: 8017486

Claim:
A method for fabricating a lateral double-diffused metal oxide semiconductor (LDMOS) device, comprising: forming a first well having a first conductive type and a second well having a second conductive type in substrate having the second conductive type; forming a doped region having the first conductive type in the first well and extending into the second well; forming a field oxide layer on a portion of the doped region having the first conductive type, exposing another portion of the doped region having the first conductive type; forming a gate dielectric layer on the substrate; forming a gate conductive layer on the gate dielectric layer and a portion of the field oxide layer; and forming a source region having the first conductive type in the second well beside a sidewall of the gate conductive layer and forming a drain region having the first conductive type in the first well adjacent to the doped region having the first conductive type and disposed beside another sidewall of the gate conductive layer.