Patent ID: 6838169
Filing Date: 2005-01-04
Classification: B24B,B24D,Y10T

Abstract:
1. A chemical mechanical polishing pad for polishing semiconductor wafers, comprising: a thermoplastic backing film; and a pressure sensitive adhesive coupled to said thermoplastic backing film, wherein said pressure sensitive adhesive is dual sided having a silicone based adhesive on a first side couplable to a polishing platen and an acrylic based adhesive on a second side couplable to said thermoplastic backing film, said pressure sensitive adhesive configured to couple a chemical mechanical polishing pad to said polishing platen and provide an interface capable of substantially preventing delamination of said chemical mechanical polishing pad from said polishing platen for at least about 4 days exposure to a polishing slurry medium having a pH of about 4 or higher.