Ferroelectric capacitor having three-dimensional structure, nonvolatile memory device having the same and method of fabricating the same
    10.
    发明授权
    Ferroelectric capacitor having three-dimensional structure, nonvolatile memory device having the same and method of fabricating the same 失效
    具有三维结构的铁电电容器,具有相同的非易失性存储器件及其制造方法

    公开(公告)号:US07910967B2

    公开(公告)日:2011-03-22

    申请号:US11515024

    申请日:2006-09-05

    CPC分类号: H01L27/11502 H01L27/11507

    摘要: A ferroelectric capacitor having a three-dimensional structure, a nonvolatile memory device having the same, and a method of fabricating the same are provided. The ferroelectric capacitor may include a trench-type lower electrode, at least one layer formed around the lower electrode, a ferroelectric layer (PZT layer) formed on the lower electrode and the at least one layer and an upper electrode formed on the ferroelectric layer. The at least one layer may be at least one insulating interlayer and the at least one layer may also be at least one diffusion barrier layer. The at least one layer may be formed of an insulating material excluding SiO2 or may have a perovskite crystal structure excluding Pb.

    摘要翻译: 提供具有三维结构的铁电电容器,具有其的非易失性存储器件及其制造方法。 铁电电容器可以包括沟槽型下电极,形成在下电极周围的至少一层,形成在下电极和至少一层上的铁电层(PZT层)和形成在铁电层上的上电极。 所述至少一个层可以是至少一个绝缘夹层,并且所述至少一个层也可以是至少一个扩散阻挡层。 所述至少一层可以由除了SiO2之外的绝缘材料形成,或者可以具有不包括Pb的钙钛矿晶体结构。