Patent ID: 6967054
Filing Date: 2005-11-22
Classification: G03F,Y10T

Abstract:
1. A wafer, comprising: at least one pre-existing surface feature out of the surface of the wafer, wherein the at least one pre-existing surface feature is a device element formed on the wafer and extending out of the surface of the wafer; an area of interest, wherein the area of interest is an area of the wafer in which a precise device element is to be formed using a uniform photoresist coating; a plurality of artificial surface features out of the surface of the wafer near the area of interest, wherein the plurality of artifical surface features are features formed on the wafer and extending out of the surface of the wafer and wherein the plurality of artificial surface features arc spaced such that surface tension forces cause the photoresist coating to be substantially uniform in the region of interest; and at least one pooling area on the wafer, wherein the pooling area is a vacant area on the wafer without features extending out of the surface of the wafer such that there are no additional surface tension forces in the at least one pooling area.