LAMINATED POLISHING PAD AND METHOD FOR PRODUCING SAME

摘要

The purpose of the present invention is to provide a method for readily producing a laminated polishing pad that is less susceptible to peeling between a polishing layer and a support layer or an intermediate layer even if polishing for a prolonged period causes higher temperatures, and that excels with respect to optical detection accuracy. This method for producing a laminated polishing pad comprises: a step for providing a light transmission region inside an opening (A) of a polishing region and preparing a polishing layer; a step for providing an adhesive member (X) containing a hot-melt adhesive to one side of the polishing layer; a step for providing a peelable protective member to a portion of the adhesive member (X) corresponding to the light transmission region; a step for bonding a support layer to the adhesive member (X) provided with the peelable protective member; and a step for removing the support layer of the portion corresponding to the light transmission region, and further removing the peelable protective member, to form an opening (B).