PRINTED CHEMICAL MECHANICAL POLISHING PAD HAVING CONTROLLED POROSITY
    4.
    发明申请
    PRINTED CHEMICAL MECHANICAL POLISHING PAD HAVING CONTROLLED POROSITY 有权
    印刷化学机械抛光垫具有控制的孔隙度

    公开(公告)号:US20150174826A1

    公开(公告)日:2015-06-25

    申请号:US14549443

    申请日:2014-11-20

    Abstract: A method of fabricating a polishing pad includes determining a desired distribution of voids to be introduced within a polymer matrix of a polishing layer of the polishing pad. Electronic control signals configured to be read by a 3D printer are generated which specify the locations where a polymer matrix precursor is to be deposited, and specify the locations of the desired distribution of voids where no material is to be deposited. A plurality of layers of the polymer matrix corresponding to the plurality of the first locations is successfully deposited with the 3D printer. Each layer of the plurality of layers of polymer matrix is deposited by ejecting a polymer matrix precursor from a nozzle. The polymer matrix precursor is solidified to form a solidified polymer matrix having the desired distribution of voids.

    Abstract translation: 制造抛光垫的方法包括确定要引入抛光垫的抛光层的聚合物基质内的空隙的期望分布。 产生配置为由3D打印机读取的电子控制信号,其指定要沉积聚合物基质前体的位置,并且指定在没有材料沉积的情况下所需的空隙分布的位置。 对应于多个第一位置的多个聚合物基体层被成功地沉积在3D打印机中。 通过从喷嘴喷射聚合物基质前体而沉积多层聚合物基质的每一层。 聚合物基质前体被固化以形成具有所需空隙分布的固化聚合物基质。

    PRINTING CHEMICAL MECHANICAL POLISHING PAD HAVING WINDOW OR CONTROLLED POROSITY

    公开(公告)号:US20210245322A1

    公开(公告)日:2021-08-12

    申请号:US17240934

    申请日:2021-04-26

    Abstract: A method of fabricating a polishing pad includes determining a desired distribution of voids to be introduced within a polymer matrix of a polishing layer of the polishing pad. Electronic control signals configured to be read by a 3D printer are generated which specify the locations where a polymer matrix precursor is to be deposited, and specify the locations of the desired distribution of voids where no material is to be deposited. A plurality of layers of the polymer matrix corresponding to the plurality of the first locations is successfully deposited with the 3D printer. Each layer of the plurality of layers of polymer matrix is deposited by ejecting a polymer matrix precursor from a nozzle. The polymer matrix precursor is solidified to form a solidified polymer matrix having the desired distribution of voids.

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