Patent ID: 6727195
Filing Date: 2004-04-27
Classification: H01L,Y10S

Abstract:
A method for providing lines and spaces in a semiconductor device on a semiconductor substrate, the semiconductor device including an insulating layer over the substrate, the method comprising the steps of:(a) providing a reverse mask on the insulating layer, the reverse mask including a plurality of apertures therein, each of the plurality of apertures having a first width; (b) trimming the reverse mask to increase a size of each of the plurality of apertures; (c) removing a portion of the insulating layer exposed by the plurality of apertures to provide a plurality of trenches, the reverse mask being used as a mask during removal of the portion of the insulating layer; and (d) providing a plurality of lines in the plurality of trenches, the plurality of lines being conductive lines; wherein the insulating layer is above a plurality of floating gates.