A laser processing method and fine particle position-medium education

摘要

A a laser processing method comprises the steps of covering the rear side of a workpiece with fine particles, one of the absorption capacity for the wavelength of the laser beam to be applied on the workpiece, as a result of which a fine particle layer on the rear side of the workpiece is formed, and in a next step, application of the laser beam by the fine particle layer on the rear side of the workpiece, in order thereby to carry out a material removal on the workpiece. The laser beam is applied on the workpiece by the fine particle layer absorbed, so that, in this way, the distribution of the energy of the laser beam, and the reflection of the laser beam to suppress, so that the removal on the workpiece can be carried out effectively.