Patent ID: 8685630
Filing Date: 2014-04-01
Classification: G03F,H01L

Abstract:
1. A method of forming a pattern in a material, the method comprising: exposing first portions of a first material to radiation through at least two apertures of a mask arranged over the first material, wherein each of the at least two apertures include a plurality of substantially horizontal apertures spaced apart from each other and a substantially vertical aperture overlapping ends of the substantially horizontal apertures; shifting the mask so that the at least two apertures overlap a portion of the first portions of the first material; and exposing second portions of the first material to radiation through the at least two apertures, wherein the first portions and the second portions overlap in such a way that non-exposed portions of the first material are arranged between the first portions and second portions; and removing the non-exposed portions or exposed portions of the first material.