LASER PROCESSING METHOD FOR FORMATION OF MICROSPIKE

摘要

PURPOSE: A laser processing method for forming a micro spike is provided to hydrate the surface of an object without separate chemical hydrophilic coating by forming a micro spike with projections whose diameter is smaller than the spot diameter of a plane laser beam. CONSTITUTION: A laser processing method for forming a micro spike comprises the steps of: generating a plane laser beam with uniform energy density and repetitively projecting the plane laser beam to an object(50) 10 to 100 times to form a plurality of micro spikes(51) composed of projections and recesses on the surface of the object, where the diameter of the projections is smaller than the spot diameter of the plane laser beam.