Nonvolatile memory device and method of fabricating the same
    7.
    发明申请
    Nonvolatile memory device and method of fabricating the same 审中-公开
    非易失性存储器件及其制造方法

    公开(公告)号:US20060186462A1

    公开(公告)日:2006-08-24

    申请号:US11357329

    申请日:2006-02-21

    IPC分类号: H01L29/788

    摘要: Provided are example embodiments of fabrication methods and resulting structures suitable for use in nonvolatile memory devices formed on semiconductor substrates. The example embodiments of the gate structures include a first insulating film formed on the semiconductor substrate, a storage node formed on the first insulating film for storing charges, a second insulating film formed on the storage node, a third insulating film formed on the second insulating film, and a gate electrode formed on the third insulating film. The insulating films are selected whereby the dielectric constant of one or both of the second and third insulating films is greater than the dielectric constant of the first insulating film.

    摘要翻译: 提供了适用于形成在半导体衬底上的非易失性存储器件中的制造方法和结果结构的示例性实施例。 栅极结构的示例实施例包括形成在半导体衬底上的第一绝缘膜,形成在用于存储电荷的第一绝缘膜上的存储节点,形成在存储节点上的第二绝缘膜,形成在第二绝缘层上的第三绝缘膜 膜和形成在第三绝缘膜上的栅电极。 选择绝缘膜,由此第二和第三绝缘膜中的一个或两个的介电常数大于第一绝缘膜的介电常数。