Composite removable hardmask
    1.
    发明授权
    Composite removable hardmask 有权
    复合可移动硬掩模

    公开(公告)号:US08252699B2

    公开(公告)日:2012-08-28

    申请号:US12952024

    申请日:2010-11-22

    IPC分类号: H01L21/033

    摘要: A method and apparatus for forming an amorphous carbon layer on a substrate is provided. A first portion of the amorphous carbon layer having a high stress level is formed from a hydrocarbon precursor having high dilution ratio, with optional amine precursor included to add stress-elevating nitrogen. A second portion of the amorphous carbon layer having a low stress level is formed on the first portion by reducing the dilution ratio of the hydrocarbon precursor and lowering or eliminating the amine gas. Pressure, temperature, and RF power input may be adjusted instead of, or in addition to, precursor flow rates, and different precursors may be used for different stress levels.

    摘要翻译: 提供了一种在基板上形成无定形碳层的方法和装置。 具有高应力水平的无定形碳层的第一部分由具有高稀释比的烃前体形成,并且包括任选的胺前体以增加应力升高的氮。 通过降低烃前体的稀释比例和降低或除去胺气体,在第一部分上形成具有低应力水平的第二部分无定形碳层。 可以调节压力,温度和RF功率输入,而不是或除了前体流速,并且不同的前体可用于不同的应力水平。

    Chemical planarization of copper wafer polishing
    3.
    发明授权
    Chemical planarization of copper wafer polishing 有权
    铜晶片抛光的化学平面化

    公开(公告)号:US08586481B2

    公开(公告)日:2013-11-19

    申请号:US13105658

    申请日:2011-05-11

    IPC分类号: H01L21/302

    摘要: Embodiments described herein relate to removing material from a substrate. More particularly, the embodiments described herein relate to polishing or planarizing a substrate by a chemical mechanical polishing process. In one embodiment, a method of chemical mechanical polishing (CMP) of a substrate is provided. The method comprises exposing a substrate having a conductive material layer formed thereon to a polishing solution comprising phosphoric acid, one or more chelating agents, one or more corrosion inhibitors, and one or more oxidizers, forming a passivation layer on the conductive material layer, providing relative motion between the substrate and a polishing pad and removing at least a portion of the passivation layer to expose a portion of the underlying conductive material layer, and removing a portion of the exposed conductive material layer.

    摘要翻译: 本文所述的实施例涉及从衬底去除材料。 更具体地,本文所述的实施例涉及通过化学机械抛光工艺抛光或平面化基板。 在一个实施例中,提供了基板的化学机械抛光(CMP)的方法。 该方法包括将其上形成有导电材料层的基底暴露于包含磷酸,一种或多种螯合剂,一种或多种腐蚀抑制剂和一种或多种氧化剂的抛光溶液,在导电材料层上形成钝化层,提供 衬底和抛光垫之间的相对运动,并去除钝化层的至少一部分以暴露下面的导电材料层的一部分,以及去除暴露的导电材料层的一部分。