Patent ID: 7530887

Claim:
A chemical mechanical polishing pad for polishing a substrate selected from at least one of a magnetic substrate, an optical substrate and a semiconductor substrate; comprising: a polishing layer comprising a plurality of polishing elements forming a three-dimensional reticulated network having a polishing texture; wherein the polishing texture comprises a plurality of contact areas on a subset of the polishing elements; wherein the polishing texture has an average dimensionless roughness, R, defined by the following equation: R =(1 −C )/(1 +N ) where C is a ratio of the average contact area of the plurality of contact areas to an average horizontal projected area for the subset of the polishing elements and N is a ratio of an average non-contact area for the subset of the polishing elements to the average horizontal projected area; wherein the average dimensionless roughness of the polishing texture is between 0.01 and 0.75; and, wherein the polishing texture is adapted for polishing the substrate.