Method of fabricating fin structure

    公开(公告)号:US09966263B1

    公开(公告)日:2018-05-08

    申请号:US15587228

    申请日:2017-05-04

    IPC分类号: H01L21/033

    摘要: A method of fabricating fin structure is provided. A patterned catalyst layer and a patterned passivation layer extending along a first direction are formed on a substrate. The patterned passivation layer is located on the patterned catalyst layer. A carbon layer is formed on at least one side of the patterned catalyst layer and includes hollow carbon tubes arranged along the first direction. Each hollow carbon tube extends along a second direction. A removal process is performed to remove the top and a portion of the bottom of each hollow carbon tube closest to the substrate, so that remnants are left and serve as a mask layer. Two adjacent remnants form a stripe pattern extending along the second direction. The patterned passivation layer and the patterned catalyst layer are removed. The pattern of the mask layer is transferred to the substrate to form fin structures. The mask layer is removed.

    MANUFACTURING METHOD FOR A SHALLOW TRENCH ISOLATION
    3.
    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

    IPC分类号: H01L21/762

    CPC分类号: H01L21/76232 H01L21/76229

    摘要: 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.

    摘要翻译: 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。

    SEMICONDUCTOR STRUCTURE AND PROCESS THEREOF
    9.
    发明申请
    SEMICONDUCTOR STRUCTURE AND PROCESS THEREOF 审中-公开
    半导体结构及其工艺

    公开(公告)号:US20160336269A1

    公开(公告)日:2016-11-17

    申请号:US14709500

    申请日:2015-05-12

    摘要: A semiconductor process includes the following steps. A dielectric layer having a recess is formed on a substrate. A barrier layer is formed to cover the recess, thereby the barrier layer having two sidewall parts. A conductive layer is formed on the barrier layer by an atomic layer deposition process, thereby the conductive layer having two sidewall parts. The two sidewall parts of the conductive layer are pulled down. A conductive material fills the recess and has a part contacting the two sidewall parts of the barrier layer protruding from the two sidewall parts of the conductive layer, wherein the equilibrium potential difference between the barrier layer and the conductive layer is different from the equilibrium potential difference between the barrier layer and the conductive material. Moreover, the present invention also provides a semiconductor structure formed by said semiconductor process.

    摘要翻译: 半导体工艺包括以下步骤。 在基板上形成具有凹部的电介质层。 形成阻挡层以覆盖凹部,由此阻挡层具有两个侧壁部分。 通过原子层沉积工艺在阻挡层上形成导电层,由此导电层具有两个侧壁部分。 导电层的两个侧壁部分被拉下。 导电材料填充凹部,并且具有接触从导电层的两个侧壁部分突出的阻挡层的两个侧壁部分的部分,其中阻挡层和导电层之间的平衡电位差不同于平衡电位差 在阻挡层和导电材料之间。 此外,本发明还提供了由所述半导体工艺形成的半导体结构。