Patent ID: 6706580
Filing Date: 2004-03-16
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device, comprising the steps of:forming an element isolation insulating film in a principal surface of a first conductivity type area of a semiconductor substrate, the element isolation insulating film defining an active region; selectively introducing impurities of a second conductivity type opposite to the first conductivity type into end portions of the active region to form first impurity doped regions; forming a gate insulating film on the active region; forming a word line made of conductive material on the gate insulating film, a pattern of the word line not overlapping the first impurity doped region, traversing the active region, and extending in one direction as a whole; introducing impurities of the second conductivity type into the active region by using the word line and the element isolation insulating film as a mask, to form second impurity doped regions at least partially overlapping the first impurity doped regions; and forming a capacitor connected to one of the second impurity doped regions and extending over the word line.