GATE DIELECTRIC LAYER FORMING METHOD
    11.
    发明申请
    GATE DIELECTRIC LAYER FORMING METHOD 审中-公开
    门电介质层形成方法

    公开(公告)号:US20120329285A1

    公开(公告)日:2012-12-27

    申请号:US13165870

    申请日:2011-06-22

    摘要: A gate dielectric layer forming method is applied to a fabrication process of a metal-oxide-semiconductor field-effect transistor. The gate dielectric layer forming method includes the following steps. Firstly, a substrate is provided. Then, an interlayer is formed on the substrate. Then, a high-k dielectric layer is formed on the interlayer. A nitridation process is performed to convert the high-k dielectric layer into a nitridated high-k dielectric layer. A first low temperature post-nitridation annealing process is performed to treat the nitridated high-k dielectric layer with a first gas. Afterwards, a second low temperature post-nitridation annealing process is performed to treat the nitridated high-k dielectric layer with a second gas.

    摘要翻译: 栅介质层形成方法应用于金属氧化物半导体场效应晶体管的制造工艺。 栅介质层形成方法包括以下步骤。 首先,提供基板。 然后,在基板上形成中间层。 然后,在中间层上形成高k电介质层。 进行氮化处理以将高k电介质层转换成氮化的高k电介质层。 进行第一次低温氮化退火处理以用第一气体处理氮化的高k电介质层。 然后,进行第二次低温氮化退火处理,以用第二气体处理氮化的高k电介质层。