PROTECTIVE SILICON OXIDE PATTERNING
    6.
    发明申请
    PROTECTIVE SILICON OXIDE PATTERNING 审中-公开
    保护硅氧化物图案

    公开(公告)号:US20150371861A1

    公开(公告)日:2015-12-24

    申请号:US14312202

    申请日:2014-06-23

    CPC classification number: H01L21/3086 H01L21/266 H01L21/3081 H01L21/31144

    Abstract: A method of patterning a substrate is described and include two possible layers which may be easily integrated into a photoresist patterning process flow and avoid an observed photoresist peeling problems. A conformal carbon layer or a conformal silicon-carbon-nitrogen layer may be formed between an underlying silicon oxide layer and an overlying photoresist layer. Either inserted layer may avoid remotely-excited fluorine etchants from diffusing through the photoresist and chemically degrading the silicon oxide. The conformal carbon layer may be removed at the same time as the photoresist and the conformal silicon-carbon-nitrogen layer may be removed at the same time as the silicon oxide, limiting process complexity.

    Abstract translation: 描述了图案化衬底的方法,并且包括两个可能的层,其可以容易地集成到光致抗蚀剂图案化工艺流程中并避免观察到的光刻胶剥离问题。 可以在下面的氧化硅层和上覆的光致抗蚀剂层之间形成保形碳层或保形硅 - 碳 - 氮层。 任一插入层可以避免远程激发的氟蚀刻剂通过光致抗蚀剂扩散并化学降解氧化硅。 可以在与硅氧化物同时去除光致抗蚀剂和共形硅 - 碳 - 氮层的同时去除共形碳层,从而限制了工艺的复杂性。

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