Patent ID: 11915963
Assignee: DISCO CORPORATION
Field: Other special machines (Mechanical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A protective member forming apparatus for forming a protective member on one surface of a wafer, the protective member forming apparatus comprising:
an integrating unit that supplies a liquid resin curable by an external stimulus to a sheet larger than the wafer held by a chuck table, spreads the resin on a surface of the wafer, and cures the resin by an external stimulus, to integrate the sheet with the wafer by the resin;
a conveying unit that conveys the wafer integrated with the sheet; and
a cutting unit that holds, by a cutting table, the wafer integrated with the sheet conveyed by the conveying unit and cuts the sheet by a cutting section along a periphery of the wafer,
wherein the cutting unit includes
a detection unit that images the wafer by a camera and detects a position of a peripheral edge of the wafer, and
a control unit configured to cut the sheet on an outer circumferential side of the wafer using the cutting section only in a case where the peripheral edge of the wafer detected by the camera coincides with a track of the cutting section when the integrated sheet is cut, the control unit is configured to store a position of the track of the cutting section which is preliminarily imaged and acquired by the camera.