The present invention pertains to devices comprising at least one purification unit, used to purify andor concentrate a target molecule contained within a test sample. The process comprises attaching an adhesive sheet comprising a base material and a layer of a curable resin disposed on one face of the base material to at least one face of an IC chip attached to a circuit substrate under pressure in a manner such that the layer of a curable resin contacts the face of the IC chip and curing the layer of a curable resin. The barrel nut can include an interior surface with threads formed thereon proximate the first end for engaging complementary threads of the upper receiver. A polishing pad may be the one that a window member is fitted in a through hole of a substrate for a polishing pad provided with a through hole penetrating from surface to back, or adhered to a substrate for a polishing pad so as to cover an opening part of the through hole.