Patent ID: 6762084
Filing Date: 2004-07-13
Classification: H01L

Abstract:
A method manufacturing a semiconductor device, comprising the sequential steps of:forming first and second transistors on a main surface of a semiconductor substrate with a space between each other; forming first metal silicide at a surface of a source/drain of said second transistor with a source/drain of said first transistor being covered by an insulating film; forming an interlayer insulating film covering said first and second transistors; forming in said interlayer insulating film a first contact hole reaching one of said source/drain of said first transistor; forming a plug electrode in said first contact hole; forming in said interlayer insulating film a second contact hole reaching one of said source/drain of said second transistor; forming second metal silicide on said plug electrode; forming a bit line on said second metal silicide and an interconnection in said second contact hole.