Patent ID: 8168520

Claim:
A method of manufacturing a semiconductor device, for forming at least one pair of gate electrodes having end portions opposed to each other across a gap, the method comprising: forming an isolation layer on a substrate to form an element region and an isolation region on the substrate; forming a gate insulator and a gate electrode layer on the substrate on which the isolation layer has been formed, in order; forming a first anti-reflection coating and a first resist on the gate electrode layer in order; exposing and developing the first resist; etching the gate electrode layer by using the first resist or the first anti-reflection coating as a mask, to remove the gate electrode layer from a region for forming the gap, thereby forming a hole penetrating the gate electrode layer in the isolation region to expose the gate insulator in the hole; forming a second anti-reflection coating and a second resist on the gate electrode layer where the hole has been formed, in order; exposing and developing the second resist; and etching the gate electrode layer by using the second resist or the second anti-reflection coating as a mask, to form the at least one pair of gate electrodes having the end portions opposed to each other across the gap, from the gate electrode layer.