a carrier is comprised of a thermoplastic polymer such as polyetheretherketone which is formed or fabricated as a uniform thickness , double sided flat sheet of material with wafer passages therethrough and gear teeth formed or fabricated around the peripheral edge thereof so as to be cooperative with a wafer polishing machine . an extrusion or rolling or calendering process provides a flat carrier which is , optionally , coated with thermoset polymer or thermoplastic film .