Patent ID: 7081394

Claim:
A method of manufacturing a device for electrostatic discharge protection, comprising the steps of: (a) forming a plurality of field oxide films in a predetermined region on a semiconductor substrate; (b) forming a gate in a predetermined region on the semiconductor substrate between the field oxide films; (c) performing an impurity ion implant process to form a well pick-up region in a predetermined region between the field oxide films; (d) performing a low-concentration impurity ion implant process to form a drain drift region in a predetermined region on the semiconductor substrate between the gate and the field oxide film; (e) performing a high-concentration impurity ion implant process to form a source in a predetermined region on the semiconductor substrate between the field oxide film and the gate and to form a drain active region within the drain drift region; and (f) forming an oxide film on the semiconductor substrate on a boundary of the drain drift region and the drain active region.