Patent ID: 8357618

Claim:
A method for patterning a film, comprising: forming a photo-resist layer above a device layer; patterning said photo-resist layer to form a photo-resist template mask comprised of a series of lines, each line having sidewalls and ends; depositing a spacer-forming material layer over said photo-resist template mask; etching said spacer-forming material layer to form a spacer mask and to expose said photo-resist template mask, said spacer mask having spacer lines adjacent to the sidewalls of each of the lines of said series of lines of said photo-resist template mask and spacer ends wrapping around the ends of each of the lines of said series of lines of said photo-resist template mask; cropping said spacer mask to form a cropped spacer mask by removing the spacer ends, but not removing the spacer lines; and, subsequently, removing said photo-resist template mask; and transferring an image of said cropped spacer mask to said device layer.