Patent ID: 6759294
Filing Date: 2004-07-06
Classification: H01L

Abstract:
A method of forming a capacitor in a semiconductor device, comprising the steps of:forming word lines on a semiconductor substrate in which semiconductor constitution elements are formed; sequentially forming a first interlayer insulating film, a first conductive layer and a second interlayer insulating film on the entire structure including the word lines; removing portions of the second interlayer insulating film, the first conductive layer and the first interlayer insulating film to form contact holes; forming a second conductive layer on the entire structure including the contact holes and then patterning the second conductive layer to connect the first and second conductive layers; removing the second interlayer insulating film without a mask process to form a bottom electrode consisting of the first and second conductive layers; etching the first conductive layer using the second conductive layer as an etch pattern without a mask process; and forming a dielectric film and a top electrode on the entire structure including the bottom electrode.