Temperature regulating apparatus and polishing apparatus

    公开(公告)号:US12023777B2

    公开(公告)日:2024-07-02

    申请号:US17610573

    申请日:2020-05-20

    申请人: EBARA CORPORATION

    IPC分类号: B24B37/015

    CPC分类号: B24B37/015

    摘要: The present invention relates to a temperature regulating apparatus for regulating a temperature of a polishing surface of a polishing pad used for polishing a substrate, such as a wafer. The present invention further relates to a polishing apparatus including such a temperature regulating apparatus. The temperature regulating apparatus (5) includes: a heat exchanger (11) having a heating flow passage (61) and a cooling flow passage (62) formed therein; a holder (90) arranged over the heat exchanger (11); a coupling mechanism (80) configured to detachably fix the heat exchanger (11) to the holder (90), the coupling mechanism (80) including: a first hook (73) fixed to an upper surface of the heat exchanger (11); and a second hook (83) held by the holder (90). The second hook (83) is configured to be able to be engaged with and disengaged from the first hook (73).

    METHOD OF CHECKING LEAKAGE OF FLUID AND POLISHING APPARATUS

    公开(公告)号:US20190389030A1

    公开(公告)日:2019-12-26

    申请号:US16449756

    申请日:2019-06-24

    申请人: Ebara Corporation

    IPC分类号: B24B37/005 G01M3/28

    摘要: A method of checking a leakage of fluid from a fluid line includes connecting a leakage checking line to the fluid line between a supply valve and a return valve, regulating a pressure regulator disposed in the leakage checking line such that a pressure of fluid of the leakage checking line becomes the same as a pressure of fluid of the fluid line; closing the supply valve and the return valve and opening an opening/closing valve disposed in the leakage checking line; acquiring a flow rate of the fluid that flows in the leakage checking line by a flowmeter disposed in the leakage checking line; comparing the flow rate of the fluid acquired at the acquiring with a predetermined threshold; and determining that the fluid of the fluid line is leaked, when the flow rate of the fluid acquired at the acquiring is larger than the predetermined threshold.

    Polishing method and polishing apparatus

    公开(公告)号:US10195712B2

    公开(公告)日:2019-02-05

    申请号:US15697047

    申请日:2017-09-06

    申请人: EBARA CORPORATION

    摘要: A polishing method and a polishing apparatus which can increase a polishing rate and can control a polishing profile of a substrate being polished by adjusting a surface temperature of a polishing pad are disclosed. The polishing method for polishing a substrate by pressing the substrate against a polishing pad on a polishing table includes a pad temperature adjustment step of adjusting a surface temperature of the polishing pad, and a polishing step of polishing the substrate by pressing the substrate against the polishing pad having the adjusted surface temperature. In the pad temperature adjustment step, the surface temperature of a part of an area of the polishing pad, the area being to be brought in contact with the substrate, is adjusted during the polishing step so that the rate of temperature change of a temperature profile in a radial direction of the surface of the polishing pad becomes constant in the radial direction of the polishing pad.

    Pad-temperature regulating apparatus, method of regulating pad-temperature, polishing apparatus, and polishing system

    公开(公告)号:US11919124B2

    公开(公告)日:2024-03-05

    申请号:US17417294

    申请日:2019-12-19

    申请人: EBARA CORPORATION

    发明人: Toru Maruyama

    摘要: The present application relates to a pad-temperature regulating apparatus for regulating a temperature of a surface of a polishing pad. The pad-temperature regulating apparatus includes a pad-contact member, a supply system for supplying a heating liquid and a cooling liquid into the pad contact member, a pad-temperature measuring device for measuring the temperature of the surface of the polishing pad, and a controller for performing a PID control of manipulated variables of a first flow control valve and a second flow control valve. The controller includes a memory in which a learned model constructed to maintain a temperature behavior curve, created based on measured values of the pad-temperature measuring device, within a predetermined allowable range, is stored; and a processing device which inputs at least one temperature behavior parameter to the learned model, and performs a calculation to output a change value of PID parameter for the PID control.

    Substrate cleaning device
    8.
    发明授权

    公开(公告)号:US11517940B2

    公开(公告)日:2022-12-06

    申请号:US16713000

    申请日:2019-12-13

    申请人: EBARA CORPORATION

    摘要: A substrate cleaning device that facilitates control of the amount of liquid supplied to a substrate and reduces adverse influences of the liquid supplied to a bearing part on the substrate is provided. The substrate cleaning device includes: a holding part that has a bearing part configured to rotatably hold a cleaning member for cleaning a substrate; a first supply part that has at least a part provided inside the holding part and supplies a first liquid into the cleaning member through the inside of the holding part; and a second supply part that supplies a second liquid to the bearing part.