METHOD FOR FABRICATING A CAPACITOR
    10.
    发明申请
    METHOD FOR FABRICATING A CAPACITOR 失效
    制造电容器的方法

    公开(公告)号:US20110171808A1

    公开(公告)日:2011-07-14

    申请号:US13069294

    申请日:2011-03-22

    IPC分类号: H01L21/02

    摘要: A method for fabricating a capacitor includes forming an isolation layer over a cell region and a peripheral region of a substrate. The isolation layer forms a plurality of open regions in the cell region. Storage nodes are formed on surfaces of the open regions. A sacrificial pattern is formed over the isolation layer and covers the cell region. The isolation layer is etched in the peripheral region to expose side portions of the resulting structure obtained after forming the sacrificial pattern in the cell region. With the sacrificial pattern supporting the storage nodes, the isolation layer in the cell region is removed. The sacrificial pattern is then removed.

    摘要翻译: 制造电容器的方法包括在衬底的单元区域和周边区域上形成隔离层。 隔离层在单元区域中形成多个开放区域。 存储节点形成在开放区域的表面上。 在隔离层上形成牺牲图案并覆盖单元区域。 在外围区域中蚀刻隔离层,以暴露在单元区域中形成牺牲图案之后获得的所得结构的侧面部分。 利用支持存储节点的牺牲图案,移除单元区域中的隔离层。 然后去除牺牲图案。