Patent ID: 6051506
Filing Date: 2000-04-18
Classification: H01L

Abstract:
A method of fabricating a semiconductor device, comprising the steps of:sequentially forming a first layer, insulating layer and second layer on a semiconductor substrate;forming a gate mask pattern on the second layer;etching the second layer and insulating layer using the gate mask pattern as an etching mask;side-etching the etched insulating layer using the gate mask pattern as an etching mask, to control the length of the insulating layer;removing the gate mask pattern;forming a photoresist layer on the overall surface of the substrate, to expose the surface of the second layer;removing the second layer, insulating layer and first layer using the photoresist layer as an etch mask, to expose a portion of the substrate;etching the exposed portion of the substrate to form a T-shape recess;forming a gate material layer on the photoresist layer, to bury the T-shape recess;forming a gate mask pattern on the gate material layer;etching the gate material layer using the mask pattern as an etching mask, to form a T-shape gate; andremoving the mask pattern, photoresist layer and first layer.