Patent ID: 11897080
Assignee: EBARA CORPORATION
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 10:
11. A polishing apparatus, comprising:
a polishing pad having a polishing surface
a polishing table configured to support the polishing pad;
a polishing head configured to press a substrate against the polishing pad;
a non-contact pad-temperature regulating device arranged above the polishing pad;
a pad-temperature measuring device configured to measure a surface temperature of the polishing pad, the pad-temperature measuring device being arranged adjacent to the pad-temperature regulating device and on a downstream side of the pad-temperature regulating device in a rotation direction of the polishing table; and
a controller configured to control the pad-temperature regulating device based on the surface temperature of the polishing pad measured by the pad-temperature measuring device,
wherein the pad-temperature regulating device comprises a heating fluid nozzle configured to spray a heating fluid onto the surface of the polishing pad,
wherein the pad-temperature regulating device comprises a suction nozzle configured to suck air near a surface of the polishing pad, and
wherein the heating fluid nozzle comprises a plurality of supply ports arranged around a suction port of the suction nozzle so that the heating fluid flows toward the suction port of the suction nozzle.