Polishing slurry and substrate polishing method using the same

    公开(公告)号:US09758698B2

    公开(公告)日:2017-09-12

    申请号:US15073625

    申请日:2016-03-17

    Inventor: Jin Hyung Park

    Abstract: Provided are slurry for polishing cobalt and a substrate polishing method. The slurry includes an abrasive configured to perform the polishing, the abrasive comprising zirconium oxide particles, a dispersing agent configured to disperse the abrasive, and a polishing accelerator configured to accelerate the polishing. The polishing accelerator includes an organic acid containing an amine group and a carboxylic group. According to the slurry in accordance with an exemplary embodiment, a polishing rate of the cobalt may increases without using an oxidizing agent, and local corrosion defects on a surface of the cobalt may be suppressed.

    POLISHING SLURRY AND SUBSTRATE POLISHING METHOD USING THE SAME
    4.
    发明申请
    POLISHING SLURRY AND SUBSTRATE POLISHING METHOD USING THE SAME 有权
    使用相同的抛光浆料和底材抛光方法

    公开(公告)号:US20150184028A1

    公开(公告)日:2015-07-02

    申请号:US14519122

    申请日:2014-10-20

    Inventor: Seung Won JUNG

    Abstract: A polishing slurry for tungsten and a substrate polishing method are disclosed. The polishing slurry includes an abrasive for performing polishing and having positive zeta potential, and a potential modulator for promoting the oxidation of the tungsten and for controlling the zeta potential of the abrasive.

    Abstract translation: 公开了一种用于钨的抛光浆料和基材研磨方法。 抛光浆料包括用于进行抛光并具有正ζ电位的研磨剂,以及用于促进钨的氧化和用于控制研磨剂的ζ电位的电位调节器。

    POLISHING SLURRY AND SUBSTRATE POLISHING METHOD USING THE SAME
    5.
    发明申请
    POLISHING SLURRY AND SUBSTRATE POLISHING METHOD USING THE SAME 有权
    使用相同的抛光浆料和底材抛光方法

    公开(公告)号:US20160272847A1

    公开(公告)日:2016-09-22

    申请号:US15073625

    申请日:2016-03-17

    Inventor: Jin Hyung PARK

    Abstract: Provided are slurry for polishing cobalt and a substrate polishing method. The slurry includes an abrasive configured to perform the polishing, the abrasive comprising zirconium oxide particles, a dispersing agent configured to disperse the abrasive, and a polishing accelerator configured to accelerate the polishing. The polishing accelerator includes an organic acid containing an amine group and a carboxylic group. According to the slurry in accordance with an exemplary embodiment, a polishing rate of the cobalt may increases without using an oxidizing agent, and local corrosion defects on a surface of the cobalt may be suppressed.

    Abstract translation: 提供用于抛光钴的浆料和基材研磨方法。 浆料包括构造成进行抛光的研磨剂,包含氧化锆颗粒的磨料,被配置成分散研磨剂的分散剂和被配置为加速抛光的抛光加速器。 抛光促进剂包括含有胺基和羧基的有机酸。 根据根据示例性实施方案的浆料,钴的抛光速率可以增加而不使用氧化剂,并且可以抑制钴表面上的局部腐蚀缺陷。

    POLISHING SLURRY AND METHOD OF POLISHING SUBSTRATE USING THE SAME
    10.
    发明申请
    POLISHING SLURRY AND METHOD OF POLISHING SUBSTRATE USING THE SAME 有权
    抛光浆料和使用其抛光底材的方法

    公开(公告)号:US20160251547A1

    公开(公告)日:2016-09-01

    申请号:US15047624

    申请日:2016-02-18

    Inventor: Jin Hyung PARK

    CPC classification number: C09G1/02 C09K3/1436 C09K3/1463 H01L21/3212

    Abstract: Provided are a slurry for polishing tungsten and a method of polishing a substrate. The slurry according to an exemplary embodiment includes an abrasive configured to perform polishing and include particles having a positive zeta potential, a dispersant configure to disperse the abrasive, an oxidizer configured to oxidize a surface of the tungsten, a catalyst configured to promote oxidation of the tungsten, and a selectivity control agent configured to control a polishing selectivity and include an organic acid containing a carboxyl group. According to the slurry of the exemplary embodiment, a polishing selectivity between the tungsten and the insulation layer may be improved by suppressing a polishing rate of the insulation layer.

    Abstract translation: 提供了用于抛光钨的浆料和抛光基材的方法。 根据示例性实施方案的浆料包括配置成进行抛光并且包括具有正ζ电位的颗粒的研磨剂,构造成分散磨料的分散剂,被配置为氧化钨表面的氧化剂,构造成促进氧化的催化剂 钨和配置成控制抛光选择性的选择性控制剂,并且包括含有羧基的有机酸。 根据本实施方式的浆料,可以通过抑制绝缘层的研磨速度来提高钨与绝缘层之间的抛光选择性。

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