Patent ID: 11923213
Assignee: SEMES CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 16:
17. The substrate processing apparatus of claim 15,
wherein the head corresponds to a spin head that is rotated by a rotation drive unit and is vertically moved by an ascending/descending-enabling drive unit,
wherein the rotation drive unit comprises:
a head support member positioned under the spin head, which rotatably supports the spin head and has a beam passage in a vertical direction, the beam passage being connected to the exposure opening, and
wherein the ascending/descending-enabling drive unit comprises:
a housing configured to support the head support member, the housing an opening on top,
wherein the beam shaper is accommodated in the housing,
wherein the opening of the housing is connected to the beam passage, and
wherein the second laser beam of the beam shaper irradiates the lower surface of the substrate via the opening of the housing, the beam passage, and the exposure opening which are connected to each other; and
a housing driver configured to ascend or descend the housing.