Patent ID: 8778118

Claim:
A method of manufacturing laser processed parts comprising: providing a pressure-sensitive adhesive sheet for laser processing a work, wherein the pressure-sensitive adhesive sheet comprises: a base material; and at least a pressure-sensitive adhesive layer provided on the base material, wherein the pressure-sensitive adhesive sheet has a ratio of etching (etching rate/energy fluence) of the base material which is 0.4 [(μm/pulse)/(J/cm 2 )] or less when the ratio of etching is measured as the depth (μm) of a slot formed per pulse of a YAG laser with an energy fluence of 8 J/cm 2 , attaching the pressure-sensitive adhesive sheet to a work on a laser beam exit side via the pressure-sensitive adhesive layer, laser processing the work by irradiating the work with a laser beam of a wavelength in the ultraviolet region, processing the work by ablation, and peeling the pressure-sensitive adhesive sheet from the processed work.