METHOD FOR PROCESSING SEMICONDUCTOR DEVICE
    1.
    发明申请

    公开(公告)号:US20190006172A1

    公开(公告)日:2019-01-03

    申请号:US15639381

    申请日:2017-06-30

    IPC分类号: H01L21/02

    摘要: A method for processing a semiconductor device is provided. The semiconductor device includes a protruding structure on a substrate, the protruding structure having a nitride spacer at a sidewall, and an epitaxial layer is formed in the substrate adjacent to the protruding structure. The method includes removing the nitride spacer on the protruding structure. Then, a dilute hydrofluoric (DHF) cleaning process is performed over the substrate, wherein a top surficial portion of the epitaxial layer is removed. A standard clean (SC) process is performed over the substrate, wherein a native oxide layer is formed on an expose surface of the epitaxial layer.

    Method for forming a stacked layer structure
    4.
    发明授权
    Method for forming a stacked layer structure 有权
    堆叠层结构的形成方法

    公开(公告)号:US09418853B1

    公开(公告)日:2016-08-16

    申请号:US14692736

    申请日:2015-04-21

    摘要: The present invention provides a method for forming a stacked layer structure, including: first, a recess is provided, next, an oxide layer is formed in the recess, where the oxide layer has a thickness T1, a high-k layer is formed on the oxide layer, a barrier layer is formed on the high-k layer, a silicon layer is then formed on the barrier layer, afterwards, an annealing process is performed on the silicon layer, so as to form an oxygen-containing layer between the silicon layer and the barrier layer, where the oxide layer has a thickness T2 after the annealing process is performed, and satisfies the relationship: (T2−T1)/T1≦0.05, and the silicon layer and the oxygen-containing layer are removed.

    摘要翻译: 本发明提供一种层叠结构体的形成方法,其特征在于,首先,设置凹部,在所述凹部形成有氧化层,其中氧化物层的厚度为T1,高k层形成在 氧化物层,在高k层上形成阻挡层,然后在阻挡层上形成硅层,然后在硅层上进行退火处理,以在其之间形成含氧层 硅层和阻挡层,其中氧化物层在退火处理之后具有厚度T2,并且满足关系:(T2-T1)/T1≤0.05,并且去除硅层和含氧层。