Patent ID: 8198680
Filing Date: 2012-06-12
Classification: H01L

Abstract:
1. A semiconductor device comprising: a semiconductor region having a source region, a drain region, and a channel forming region; a gate insulating film formed over the semiconductor region; a gate electrode formed over the gate insulating film; sidewalls formed on side surfaces of the gate electrode; a source electrode in contact with an upper surface and a side surface of the source region and with one of the sidewalls; and a drain electrode in contact with an upper surface and a side surface of the drain region and with the other of the sidewalls, wherein the source electrode and the drain electrode are formed by etching a conductive film so that a portion of the source electrode furthest from the one of the sidewalls is a thickest portion of the source electrode, and a portion of the drain electrode furthest from the other of the sidewalls is a thickest portion of the drain electrode.