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公开(公告)号:US20120018826A1
公开(公告)日:2012-01-26
申请号:US13187782
申请日:2011-07-21
申请人: Min Suk LEE , Byung Gu Gyun , Bo Kyoung Jung , Chang Hyup Shin
发明人: Min Suk LEE , Byung Gu Gyun , Bo Kyoung Jung , Chang Hyup Shin
CPC分类号: H01L29/82 , G11C11/161 , H01L43/12
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。
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公开(公告)号:US08420408B2
公开(公告)日:2013-04-16
申请号:US13187782
申请日:2011-07-21
申请人: Min Suk Lee , Byung Gu Gyun , Bo Kyoung Jung , Chang Hyup Shin
发明人: Min Suk Lee , Byung Gu Gyun , Bo Kyoung Jung , Chang Hyup Shin
IPC分类号: H01L43/08
CPC分类号: H01L29/82 , G11C11/161 , H01L43/12
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。
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