Patent ID: 8003303

Claim:
A method, comprising: providing a semiconductor substrate; depositing a photosensitive material on the semiconductor substrate, wherein the depositing includes forming a first thickness of photosensitive material at a first section of the substrate and a second thickness of photosensitive material at a second section of the substrate, wherein the first thickness is greater than the second thickness by a first amount; providing a photomask having a first region and a second region, wherein the first and second regions each include a plurality of sub-resolution features; exposing the photosensitive material, wherein the exposing includes passing radiation through the photomask, wherein radiation passing through the first region of the photomask is incident the first section of the substrate and radiation passing through the second region of the photomask is incident the second section of the substrate; and developing the exposed photosensitive material, wherein the developing provides a layer having a third thickness of photosensitive material in the first section of the substrate and a fourth thickness of photosensitive material in the second section of the substrate, the third thickness being greater than the fourth thickness by a second amount, the second amount being less than the first amount.