Patent ID: 7615493

Claim:
A method for forming a semiconductor device, comprising: forming an etch stop film and an interlayer insulating film over a semiconductor substrate including a cell region and a scribe region; etching a predetermined region of the interlayer insulating film and the etch stop film to form a storage node region in the cell region and an alignment mark region in the scribe region, the storage node region and the alignment mark region being formed at the same time; forming a conductive layer for storage nodes over the storage node region and over the alignment mark region; etching the conductive layer for storage nodes until the interlayer insulting film is exposed, wherein the etched conductive layer forms a conductive pattern in the cell region and the alignment mark region; and removing the interlayer insulating film such that the conductive pattern forms a capacitor in the cell region and an alignment mark in the scribe region at the same time.