Patent ID: 8450207

Claim:
A method of fabricating a cell contact and a digit line for a semiconductor device, comprising: providing a substrate ( 10 ); forming a first conductive layer ( 32 ), a second conductive layer ( 34 ), a first silicon nitride layer ( 36 ) from bottom to top on the substrate; patterning the first silicon nitride layer and the second conductive layer to form a plurality of line-shaped masks ( 40 ); forming a pair of spacers ( 42 ) at two sides of each of the line-shaped masks respectively, wherein a gap (G 1 ) is defined between the spacers; forming a second silicon nitride ( 44 ) layer to fill up the gap; removing the spacers; and removing part of the first conductive layer by taking the second silicon nitride layer and the line-shaped masks as a mask.