Abstract: A polishing apparatus 1 includes a control device 90. The control device 90 performs: a cleaning process of causing a cleaning solution to flow in a flow channel 70a and then causing a polishing solution to flow in the flow channel 70a when the number of substrates Wf polished by a polishing machine 10 reaches a predetermined number; and a clogging detecting process of detecting whether clogging has occurred in the flow channel based on a pressure or a flow rate of the cleaning solution detected by sensors 60 and 61 when the cleaning solution flows in the flow channel.

Abstract: There is provided an apparatus for polishing, comprising a polishing table configured to support and rotate a polishing pad; a holder configured to hold an object and press the object against the polishing pad; a polishing solution supply device provided with a contact member and configured to supply a polishing solution to an opening in a bottom face of the contact member in a state that the contact member comes into contact with or is adjacent to the polishing pad, thereby spreading the polishing solution on the polishing pad, the polishing solution supply device causing at least part of used polishing solution returned by rotation of the polishing pad to be dammed up by the contact member and setting the contact member either in a direction of keeping the dammed up polishing solution on the polishing pad or in a direction of discharging the dammed up polishing solution, according to an angle of the polishing solution supply device with respect to a radial direction of the polishing pad; an arm linked with

Abstract: There is provided an apparatus for polishing, comprising a polishing table configured to support and rotate a polishing pad; a holder configured to hold an object and press the object against the polishing pad; a polishing solution supply device provided with a contact member and configured to supply a polishing solution to an opening in a bottom face of the contact member in a state that the contact member comes into contact with or is adjacent to the polishing pad, thereby spreading the polishing solution on the polishing pad, the polishing solution supply device causing at least part of used polishing solution returned by rotation of the polishing pad to be dammed up by the contact member and setting the contact member either in a direction of keeping the dammed up polishing solution on the polishing pad or in a direction of discharging the dammed up polishing solution, according to an angle of the polishing solution supply device with respect to a radial direction of the polishing pad; an arm linked with

Abstract: There is provided an apparatus for polishing, comprising a table configured to support a polishing pad; a polishing head configured to hold a substrate; and a polishing solution supply device configured to supply a polishing solution between the polishing pad and the substrate. The polishing solution supply device comprises a plurality of polishing solution supply ports arrayed in a direction intersecting with a rotating direction of the polishing pad in a state that the polishing solution supply device is placed on an upstream side in rotation of the polishing pad relative to the substrate. The polishing solution supply device supplies the polishing solution, such that the polishing solution supplied from the plurality of polishing solution supply ports has a predetermined flow rate distribution.