Patent ID: 8796134

Claim:
A method of forming an integrated circuit device, comprising: forming first and second electrically conductive line segments that extend in parallel at side-by-side locations on a substrate; and selectively etching each of the first and second line segments into a respective pair of electrical interconnects having facing ends that are separated from each other, using a photolithography mask having a modified-rectangular mask pattern thereon configured to define a shape of the facing ends of each of the pair of electrical interconnects, said modified-rectangular mask pattern comprising a composite of: a rectangular-shaped primary mask pattern having first sides of a first length and second sides of a second length less than the first length; and a first rectangular-shaped secondary mask pattern on a first side of said rectangular-shaped primary mask pattern, said first rectangular-shaped secondary mask pattern having third sides of a third length less than the first length and fourth sides of a fourth length less than the third length.