Patent ID: 8709114

Claim:
A method of forming a polishing layer for a chemical mechanical polishing pad, comprising: providing a mold, having a mold base and a surrounding wall attached to the mold base; providing a liner with a top surface, a bottom surface and an average thickness of 2 to 10 cm; providing an adhesive; providing a curable material comprising a liquid prepolymer; providing a nozzle, having a nozzle opening; providing a skiver blade with a cutting edge; providing a strop; providing a stropping compound; bonding the bottom surface of the liner to the mold base using the adhesive, wherein the top surface of the liner and the surrounding wall define a mold cavity; charging the curable material through the nozzle opening to the mold cavity during a charging period, CP; allowing the curable material in the mold cavity to cure into a cake; separating the surrounding wall from the mold base and the cake; applying the stropping compound to the cutting edge; stropping the skiver blade with the strop; and, slicing the cake into multiple chemical mechanical polishing layers.