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

Claim 0:
1. 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;
an atomizer configured to clean the polishing surface of the polishing pad; 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 measuring device is arranged on the downstream side of the pad-temperature regulating device and on an upstream side of the atomizer, and
wherein when a region between the atomizer and the pad-temperature regulating device is defined as a temperature control stable region, the pad-temperature measuring device is arranged in the temperature control stable region, and the polishing head is arranged in a region outside the temperature control stable region.