Patent ID: 11967797
Assignee: NUVOTON TECHNOLOGY CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC H  B | IPC B  H

Claim 6:
7. A semiconductor laser element manufacturing method of manufacturing a semiconductor laser element by separating a semiconductor laser element substrate, the semiconductor laser element manufacturing method comprising:
forming a recess in the semiconductor laser element substrate; and
separating the semiconductor laser element substrate along the recess,
wherein the recess includes a first region and a second region, the first region having a line shape along a first direction in a plan view of the semiconductor laser element substrate and having a planar shape in a vertical cross-sectional view of the semiconductor laser element substrate, the planar shape spreading to a plane defined by the first direction and a second direction which is a depth direction of the semiconductor laser element substrate, the second region having a line shape extending from the first region in a direction opposite to the first direction.