Semiconductor memory and manufacturing method thereof
    1.
    发明授权
    Semiconductor memory and manufacturing method thereof 有权
    半导体存储器及其制造方法

    公开(公告)号:US08420408B2

    公开(公告)日:2013-04-16

    申请号:US13187782

    申请日:2011-07-21

    IPC分类号: H01L43/08

    摘要: A method for manufacturing a semiconductor memory device includes sequentially depositing a bottom electrode layer, a magnetic tunnel junction (MTJ) layer, a first top electrode layer, a second top electrode layer and a mask layer, etching the mask layer and forming a mask pattern, etching the second top electrode layer and the first top electrode layer by using the mask pattern as an etch barrier, etching the MTJ layer by using the mask layer and the second top electrode layer as an etch barrier, and etching the bottom electrode layer by using the first top electrode layer as an etch barrier.

    摘要翻译: 一种半导体存储器件的制造方法,包括依次沉积底部电极层,磁性隧道结(MTJ)层,第一顶部电极层,第二顶部电极层和掩模层,蚀刻掩模层并形成掩模图案 通过使用掩模图案作为蚀刻阻挡层蚀刻第二顶部电极层和第一顶部电极层,通过使用掩模层和第二顶部电极层作为蚀刻阻挡层来蚀刻MTJ层,并且通过 使用第一顶部电极层作为蚀刻阻挡层。

    SEMICONDUCTOR MEMORY AND MANUFACTURING METHOD THEREOF
    2.
    发明申请
    SEMICONDUCTOR MEMORY AND MANUFACTURING METHOD THEREOF 有权
    半导体存储器及其制造方法

    公开(公告)号:US20120018826A1

    公开(公告)日:2012-01-26

    申请号:US13187782

    申请日:2011-07-21

    IPC分类号: H01L29/82 H01L21/02

    摘要: A method for manufacturing a semiconductor memory device includes sequentially depositing a bottom electrode layer, a magnetic tunnel junction (MTJ) layer, a first top electrode layer, a second top electrode layer and a mask layer, etching the mask layer and forming a mask pattern, etching the second top electrode layer and the first top electrode layer by using the mask pattern as an etch barrier, etching the MTJ layer by using the mask layer and the second top electrode layer as an etch barrier, and etching the bottom electrode layer by using the first top electrode layer as an etch barrier.

    摘要翻译: 一种半导体存储器件的制造方法,包括依次沉积底部电极层,磁性隧道结(MTJ)层,第一顶部电极层,第二顶部电极层和掩模层,蚀刻掩模层并形成掩模图案 通过使用掩模图案作为蚀刻阻挡层蚀刻第二顶部电极层和第一顶部电极层,通过使用掩模层和第二顶部电极层作为蚀刻阻挡层来蚀刻MTJ层,并且通过 使用第一顶部电极层作为蚀刻阻挡层。