Patent attributes
A method of manufacturing a grooved polishing pad wherein a large number of grooves, extending parallel to each other, are fabricated at specific intervals on at least one of a front surface and a back surface of a polishing pad substrate through a groove cutting process on the polishing pad substrate which is made from a synthetic resin material, the method comprising the steps of: cutting, by using a multi-edged tool having a plurality of pad groove machining cutting parts, arrayed at equal spacing p with the spacing p being an integer multiple no less than 2 of a desired spacing d of the grooves, a plurality of the grooves; and repeating the cutting of the plurality of grooves through shifting the multi-edged tool in a direction in which the pad groove machining cutting parts are arrayed, in order to fabricate the large number of grooves, extending parallel to each other, with the desired spacing d.
