A measurement technique for determining the width of a structure on a mask is described. A release material layer 41 as release means is provided in a streak shape on an adhesive surface 22 of an adhesive tape 2 with the adhesive surface 22 formed on one surface of the base material 21. According to the invention, the laser radiation is absorbed essentially in fibers andor in a fiber coating of the component reinforced with long fibers. The coating can be formed from a mixture of silane coupling agents that contain functionality in some of the coupling agents that is copolymeriable with the resin such that the microlens can be formed and bonded to the surface by photopolymerization. The fluid spray can be positioned normal to the substrate surface, or can be positioned at an angle relative to the substrate surface. The therapeutic or bioactive material within the plurality of voids or pores operates to accelerate a healing process in the patient’s vasculature when the microcoil is introduced into the patient’s vasculature.