Patent ID: 7374866

Claim:
A method of forming a semiconductor device, comprising: forming a photoresist layer on a surface of a wafer, the wafer comprising an array of die that includes a plurality of complete die and at least one partial edge die, the wafer having an edge that has a substantially rounded cross-sectional profile causing undersized patterns in semiconductor devices formed on partial edge die; assigning a first exposure intensity to a first group of die on the surface of the wafer, the first group of die comprising a group of complete die, the assignment of the first exposure intensity based at least in part on the location of the first group of die on the surface of the wafer; assigning a second exposure intensity to a second group of die on the surface of the wafer, the second group of die comprising at least one partial edge die, the second exposure intensity less than the first exposure intensity to compensate for reduced line width due to the wafer edge topography; and directing energy at the second group of die at the second exposure intensity to avoid over-exposure of the second group of die.