MANUFACTURING METHOD FOR A SHALLOW TRENCH ISOLATION
    5.
    发明申请
    MANUFACTURING METHOD FOR A SHALLOW TRENCH ISOLATION 有权
    用于浅层分离分离的制造方法

    公开(公告)号:US20140094017A1

    公开(公告)日:2014-04-03

    申请号:US13633104

    申请日:2012-10-01

    CPC classification number: H01L21/76232 H01L21/76229

    Abstract: A manufacturing method for a shallow trench isolation. First, a substrate is provided, a hard mask layer and a patterned photoresist layer are sequentially formed on the substrate, at least one trench is then formed in the substrate through an etching process, the hard mask layer is removed. Afterwards, a filler is formed at least in the trench and a planarization process is then performed on the filler. Since the planarization process is performed only on the filler, so the dishing phenomenon can effectively be avoided.

    Abstract translation: 浅沟槽隔离的制造方法。 首先,提供基板,在基板上依次形成硬掩模层和图案化光致抗蚀剂层,然后通过蚀刻工艺在基板中形成至少一个沟槽,去除硬掩模层。 然后,至少在沟槽中形成填料,然后对填料进行平面化处理。 由于仅在填料上进行平坦化处理,所以可以有效地避免凹陷现象。

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