SEMICONDUCTOR DEVICE FOR PREVENTING STATIC ELECTRICITY

摘要

PURPOSE: A semiconductor device for preventing static electricity is provided to increase capacitance of reverse voltage and protect an internal circuit of a semiconductor chip in spite of high electrostatic voltage. CONSTITUTION: A semiconductor device for preventing static electricity comprises a source /drain region which is coupled to an input/output terminal and is used for an open drain, and a resistance region which is monolithically coupled to the source/drain region to protect static electricity of the source/drain region. The resistance region is formed with a conductive type and doping concentration same as the source/drain region.