Patent ID: 8765259
Filing Date: 2014-07-01
Classification: B24B,C08J,C09J,Y10T

Abstract:
1. A polishing device comprising: a base plate; a carrier film adhered to the base plate for mounting a polishing workpiece in a process of chemical mechanical polishing, comprising: a surface substrate consisting of first elastomer, the first elastomer comprising a plurality of first holes; wherein the plurality of first holes have a drop shape, and each of the plurality of first holes has an opening, a buffer substrate consisting of second elastomer, the second elastomer comprising a plurality of second holes; wherein the surface substrate and the buffer substrate are adhered with adhesive comprising the first or the second elastomer; wherein the first elastomer and the second elastomer are the same and are polyurethane; a polishing workpiece mounted by the carrier film; and a polishing pad placed against the polishing workpiece and polishing the polishing workpiece in the process of chemical mechanical polishing.