Patent ID: 11862505
Assignee: DISCO CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 8:
9. The processing apparatus according to claim 7, wherein
the beveled part removing unit includes a laser beam irradiation unit that irradiates a base part of the beveled part formed at an outer circumference of the wafer with a laser beam to form a cut groove or form a modified layer inside the wafer, a first raising-lowering table that holds and raises the frame unit temporarily placed on the temporary placement table and positions the frame unit relative to the laser beam irradiation unit, and a separating part that separates the beveled part from the cut groove or the modified layer in the ring manner,
the separating part includes an ultraviolet irradiation part that irradiates the tape corresponding to the beveled part with ultraviolet to reduce an adhesive force of the tape, a second raising-lowering table that sucks and holds inside of the wafer in such a manner that the beveled part is exposed from outer circumference, and supports the annular frame, a separator that acts on the beveled part and separates the beveled part in the ring manner, and a discard part by which the beveled part separated is discarded, and
the first raising-lowering table temporarily places the frame unit in which the cut groove or the modified layer is formed on the temporary placement table, and the temporary placement table is positioned relative to the separating part by a temporary placement table conveying part, and the second raising-lowering table supports the frame unit temporarily placed on the temporary placement table.