LASER PROCESSING APPARATUS, LASER PROCESSING METHOD, METHOD OF MANUFACTURING WIRING SUBSTRATE, METHOD OF MANUFACTURING DISPLAY APPARATUS AND WIRING SUBSTRATE

摘要

PROBLEM TO BE SOLVED: To provide a simple and reliable laser processing method in which both of improvement in manufacture yield and reduction in manufacture throughput can be obtained.

SOLUTION: The laser processing method includes: selecting, for a processing object 3 having a multilayer film formed of two or more layers with different materials, a wavelength of a laser beam L based on the reflectance of each layer constituting the multilayer film; and irradiating the processing object with the laser beam L.

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