CMP METHOD FOR SUPPRESSION OF TITANIUM NITRIDE AND TITANIUM/TITANIUM NITRIDE REMOVAL
    32.
    发明申请
    CMP METHOD FOR SUPPRESSION OF TITANIUM NITRIDE AND TITANIUM/TITANIUM NITRIDE REMOVAL 有权
    硝酸钛和钛/硝酸氮去除的CMP方法

    公开(公告)号:US20150221521A1

    公开(公告)日:2015-08-06

    申请号:US14616250

    申请日:2015-02-06

    摘要: A chemical mechanical polishing (CMP) method for removal of a metal layer deposited over a titanium nitride (TiN) or titanium/titanium nitride (Ti/TiN) barrier layer is described herein. The method comprises abrading the metal layer with an acidic CMP composition to expose the underlying TiN or Ti/TiN layer, wherein the TiN or Ti/N layer is polished at a low rate due to the presence of a surfactant inhibitor. The acidic CMP composition comprises a particulate abrasive (e.g., silica, alumina) suspended in a liquid carrier containing a surfactant selected from the group consisting of an anionic surfactant, a nonionic surfactant, cation surfactants, and a combination thereof.

    摘要翻译: 本文描述了用于去除沉积在氮化钛(TiN)或钛/氮化钛(Ti / TiN)阻挡层上的金属层的化学机械抛光(CMP)方法。 该方法包括用酸性CMP组合物研磨金属层以暴露下面的TiN或Ti / TiN层,其中由于表面活性剂抑制剂的存在,TiN或Ti / N层以低速率抛光。 酸性CMP组合物包含悬浮在含有选自阴离子表面活性剂,非离子表面活性剂,阳离子表面活性剂及其组合的表面活性剂的液体载体中的颗粒磨料(例如二氧化硅,氧化铝)。

    POLISHING SLURRY AND SUBSTRATE POLISHING METHOD USING THE SAME
    33.
    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

    申请人: UBMATERIALS INC.

    发明人: Seung Won JUNG

    IPC分类号: C09G1/02 C23F1/26 H01L21/321

    摘要: 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.

    摘要翻译: 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。

    Metal polishing slurry and polishing method
    34.
    发明授权
    Metal polishing slurry and polishing method 有权
    金属抛光浆和抛光方法

    公开(公告)号:US08821750B2

    公开(公告)日:2014-09-02

    申请号:US12527607

    申请日:2008-02-22

    摘要: The present invention relates to a metal polishing slurry containing abrasive grains, a metal-oxide-dissolving agent, and water, wherein the abrasive grains contain two or more abrasive grain species different from each other in average secondary particle diameter. Using the metal polishing slurry of the present invention, a metal polishing slurry can be obtained which gives a large polishing rate of an interlayer dielectric layer, and is high in the flatness of the polished surface. This metal polishing slurry can provide suitable method for a semiconductor device which is excellent in being made finer and thinner and in dimension precision and in electric characteristics, is high in reliability, and can attain a decrease in costs.

    摘要翻译: 本发明涉及含有磨粒,金属氧化物溶解剂和水的金属抛光浆料,其中磨粒含有平均二次粒径彼此不同的两种或更多种磨粒。 使用本发明的金属研磨浆,可以得到层状电介质层的研磨速度高的金属研磨浆料,并且抛光面的平坦度高。 这种金属抛光浆料可以提供适合于制造更细和更薄,尺寸精度和电特性优异的可靠性高的半导体器件的方法,并且可以降低成本。

    SLURRY CONTAINING MULTI-OXIDIZER AND MIXED NANO-ABRASIVES FOR TUNGSTEN CMP
    36.
    发明申请
    SLURRY CONTAINING MULTI-OXIDIZER AND MIXED NANO-ABRASIVES FOR TUNGSTEN CMP 审中-公开
    含有多种氧化剂和混合纳米材料的浆料用于铁素体

    公开(公告)号:US20110186542A1

    公开(公告)日:2011-08-04

    申请号:US13084024

    申请日:2011-04-11

    摘要: A chemical mechanical polishing slurry containing multiple oxidizers and nano abrasive particles (including engineered nano diamond particles) suitable for polishing multilayer substrate with tungsten and Ti/TiN barrier layers. The slurry contains no metallic catalyst and has low total abrasive particle content. The absence of metal ions can be advantageous for certain applications as certain metal ions may present contamination issues. A low total abrasive content may also lower the total defect counts, reduce the slurry waste treatment burden, and simplify the post CMP clean process.

    摘要翻译: 含有多个氧化剂和纳米磨料颗粒(包括工程纳米金刚石颗粒)的化学机械抛光浆料,适用于抛光具有钨和Ti / TiN阻挡层的多层基材。 浆料不含金属催化剂,总磨料颗粒含量低。 金属离子的缺乏对于某些应用是有利的,因为某些金属离子可能存在污染问题。 低的总研磨剂含量也可能降低总缺陷计数,减少浆料废物处理负担,并简化后CMP清洁工艺。