LASER PROCESSING METHOD AND LASER PROCESSING APPARATUS

摘要

Provided is a laser processing method in which a laser processing head for irradiating, with at least a short-pulse laser (L2), a processed article (100) having a protection layer (104) laminated to a metal layer (102) is used to process the processed article (100), whereby high-quality, highly accurate processing is possible by means of a short-pulse laser processing step for irradiating the protection layer (104) with the short-pulse laser (L2) to ablate the protection layer (104), and a metal layer processing step for ablating the metal layer (102) in the area that was ablated during the short-pulse laser processing step.