Patent ID: 8852971

Claim:
A method of cutting light emitting element packages each including a light emitting element chip, the method comprising steps of: preparing a ceramic substrate having a surface on which a plurality of light emitting element chips are mounted, wherein a light-transmitting material layer is formed to cover the plurality of light emitting element chips; partially removing the light-transmitting material layer between the plurality of light emitting element chips along a cutting line and forming a groove, through which an uppermost portion of the ceramic substrate is exposed, along the cutting line by a mechanical cutting method; and the step of partially removing the light-transmitting material layer between the plurality of light emitting element chips along the cutting line, irradiating a laser beam onto the ceramic substrate along the cutting line to form a scribing line on a surface of the ceramic substrate opposite to the surface on which the plurality of light emitting element chips are disposed; after forming the scribing line, separating individual light emitting element packages by cutting the ceramic substrate along the scribing line by applying a mechanical impact to the uppermost portion of the ceramic substrate exposed through the groove.