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

Claim 3:
4. A semiconductor element manufacturing method of manufacturing a semiconductor element by separating a semiconductor element substrate, the semiconductor element manufacturing method comprising:
forming a first puncture by irradiating a first position on a surface of the semiconductor element substrate with a first pulse of a light beam;
forming a second puncture by irradiating a second position on the surface of semiconductor element substrate with a second pulse of the light beam after the forming of the first puncture, the second puncture at least partially overlapping the first puncture, the second position being positioned away from the first position in a first direction; and
separating the semiconductor element substrate along a recess after the forming of the second puncture, the recess being formed by the first puncture and the second puncture,
wherein the second puncture has a tip positioned inside the semiconductor element substrate, the tip being bent in a direction opposite to the first direction.