Patent ID: 6989229

Claim:
A method of making a semiconductor device using radiation having a wavelength applied to photoresist on a wafer, comprising: providing a mask having a plurality of pattern features; providing an optical system; applying the photoresist to a surface of the wafer; and applying the radiation to the mask, from the mask to the optical system, and from the optical system to the photoresist; wherein the mask has a first pattern feature within a flare proximity region of the first pattern feature; wherein the flare proximity region has a tile having a length and a width for flare compensation; wherein the mask is characterized as having a minimum spacing for the plurality of pattern features, and the tile is disposed greater than four minimum spacings from the first pattern feature and is partially radiation absorbing by absorbing at least an additional twenty percent of radiation compared to that of the first pattern feature; and transferring the first pattern feature to the surface of the wafer without transferring the tile.