Dressing apparatus and polishing apparatus

    公开(公告)号:US11980997B2

    公开(公告)日:2024-05-14

    申请号:US17371909

    申请日:2021-07-09

    IPC分类号: B24B53/017 B24B37/20

    CPC分类号: B24B53/017 B24B37/20

    摘要: A dressing apparatus includes a dresser provided in a polishing apparatus for polishing a board-like work by relative movement between the work and a polishing pad while bringing the polishing pad into contact with the work, the dresser having a dressing surface that slides relative to a polishing surface of the polishing pad to dress the polishing pad; a dresser drive member that rotates the dresser; a high-pressure water generating device that supplies high-pressure water pressurized to 1 to 15 MPa; and a high-pressure water injection nozzle that injects the high-pressure water toward the dressing surface rotating.

    CHEMICAL MECHANICAL POLISHING APPARATUS USING A MAGNETICALLY COUPLED PAD CONDITIONING DISK

    公开(公告)号:US20230364731A1

    公开(公告)日:2023-11-16

    申请号:US18360885

    申请日:2023-07-28

    IPC分类号: B24B37/04 B24B37/20

    CPC分类号: B24B37/042 B24B37/20

    摘要: A chemical mechanical polishing (CMP) apparatus includes a polishing pad located on a top surface of a platen configured to rotate around a vertical axis passing through the platen, a wafer carrier configured to hold a substrate on a bottom surface thereof and to press the substrate on a top surface of the polishing pad, a slurry dispenser configured to dispense slurry over the top surface of the polishing pad, and a pad conditioning unit comprising a pad conditioning disk and a conditioning head configured to hold the pad conditioning disk. The conditioning head includes an electromagnet and the pad conditioning disk comprises a first ferromagnetic material portion configured to be attracted to the electromagnet when the electromagnet is energized.

    SINGLE-SIDE POLISHING APPARATUS, SINGLE-SIDE POLISHING METHOD, AND POLISHING PAD

    公开(公告)号:US20230330804A1

    公开(公告)日:2023-10-19

    申请号:US18012711

    申请日:2021-05-24

    IPC分类号: B24B37/20

    CPC分类号: B24B37/20

    摘要: A single-side polishing apparatus including: a base turntable having a groove for vacuum suction; a detachable polishing turntable immobilized by vacuum suction; a polishing pad; and a polishing head configured to hold a wafer. The single-side polishing apparatus brings a surface of a wafer held by the polishing head into sliding contact with the polishing pad for polishing. The polishing pad includes a polishing layer configured to polish the wafer surface, a first adhesive layer, a PET sheet layer, a second adhesive layer, an elastic layer, and a third adhesive layer for attachment to the polishing turntable. The layers are sequentially stacked. The polishing pad has a compressibility of 16% or more.