Manufacturing method of plate-shaped member, intermediate body of plate-shaped member, and plate-shaped member

摘要

Provided are a method for manufacturing a plate-shaped member capable of suppressing a shape defect of the plate-shaped member, an intermediate body of the plate-shaped member, and a plate-shaped member in which a shape defect is suppressed. After forming the first dividing groove 12a on the first main surface of the base material of the plate-like member having the first main surface and the second main surface which are opposed to each other, the first dividing groove 12a on the second main surface in plan view The process of forming the intermediate body 11 of a wavelength conversion member (plate-shaped member) by forming the 2nd division groove|channel 13a in the direction which intersects with the 1st division groove 12a and the 2nd division groove 13a a step of cutting the intermediate body 11 of the wavelength conversion member along one dividing groove, and then cutting the intermediate body 11 of the wavelength converting member along the other dividing groove; In cutting the intermediate body 11 of the wavelength conversion member, by pressing from the second main surface 11b side, the intermediate body 11 of the wavelength conversion member is cut along the first dividing groove 12a, and the second division In cutting the intermediate body 11 of the wavelength conversion member along the groove 13a, by pressing from the side of the first main surface 11a, cutting the intermediate body of the wavelength conversion member along the second dividing groove 13a characterized.