Capacitor top plate over source/drain to form a 1T memory device
    4.
    发明授权
    Capacitor top plate over source/drain to form a 1T memory device 有权
    源极/漏极上的电容器顶板形成1T存储器件

    公开(公告)号:US08716081B2

    公开(公告)日:2014-05-06

    申请号:US11686475

    申请日:2007-03-15

    IPC分类号: H01L29/76

    摘要: A method and structure for a memory device, such as a 1T-SRAM, having a capacitor top plate directly over a doped bottom plate region. An example device comprises the following. An isolation film formed as to surround an active area on a substrate. A gate dielectric and gate electrode formed over a portion of the active area. A source element and a drain element in the substrate adjacent to the gate electrode. The drain element is comprised of a drain region and a bottom plate region. The drain region is between the bottom plate region and the gate structure. A capacitor dielectric and a capacitor top plate are over at least portions of the bottom plate region.

    摘要翻译: 用于诸如1T-SRAM的存储器件的方法和结构,其具有直接在掺杂底板区域上方的电容器顶板。 示例设备包括以下。 形成为围绕衬底上的有源区域的隔离膜。 形成在有源区域的一部分上的栅极电介质和栅电极。 与栅电极相邻的衬底中的源极元件和漏极元件。 漏极元件由漏区和底板区组成。 漏极区域位于底板区域和栅极结构之间。 电容器电介质和电容器顶板在底板区域的至少部分上方。