Patent ID: 6737199
Filing Date: 2004-05-18
Classification: G03F

Abstract:
A method of forming a mask pattern having optical proximity correction, comprising:providing regular fracture elements, wherein each of said regular fracture elements have long sides and a first end, and said long sides of all of said regular fracture elements are parallel; providing special fracture elements, wherein each of said special fracture elements are rectangles having parallel long sides a first distance apart, a first end, and a second end parallel to and a second distance away from said first end; forming rectangular pattern elements, each of said rectangular pattern elements having a first end and a second end, by means of arranging two of said special fracture elements so that said long sides of each of said two of said special fracture elements are parallel, said first ends of each of said two of said special fracture elements are co-linear, said second ends of each of said two of said special fracture elements are co-linear, and said two of said special fracture elements do not overlap; and arranging said regular fracture elements to form optical proximity correction elements at said first end and said second end of each of said rectangular pattern elements.