Patent ID: 6361832
Filing Date: 2002-03-26
Classification: B24B,B24D,Y10S

Abstract:
A method of manufacturing a polishing pad for planarization of a microelectronic-device substrate assembly, comprising:forming a plurality of contour surfaces over a first surface of a backing member to project away from the first surface by depositing a plurality of pattern elements over the first surface of the backing member, each pattern element having a portion projecting away from the first surface of the backing member, and the portions of the pattern elements projecting away from the backing member defining the contour surfaces, wherein the plurality of pattern elements are deposited on the first surface by coating the first surface with a liquid containing the pattern elements by drawing the backing member through a bath including the liquid and the pattern elements and evaporating the liquid to leave the pattern elements directly on the first surface of the backing member; and covering the contour surfaces with a cover layer of hard material that conforms to the contour surfaces to form nodules from the portions of the hard cover layer over the contour surfaces, the nodules projecting away from the first surface of the backing member.