Patent ID: 6051470
Filing Date: 2000-04-18
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, the method comprising:forming a gate oxide layer on a main surface of a substrate;forming source/drain regions in the substrate with a channel region between the source/drain regions and under the gate oxide layer;forming a dielectric layer on the substrate, the dielectric layer having an opening therein, the opening having side surfaces and a lower portion over the channel region, and the gate oxide layer across the lower portion of the opening; andforming a gate electrode on the gate oxide layer within the opening by:forming edge conductive portions of the gate electrode laterally on the side surfaces of the opening;forming dielectric sidewall spacers laterally on exposed side surface of the edge conductive portions; andforming a central conductive portion of the gate electrode between the dielectric sidewall spacers.