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    • 5. 发明授权
    • Methods of forming variable resistive memory devices
    • 形成可变电阻式存储器件的方法
    • US09034719B2
    • 2015-05-19
    • US14315991
    • 2014-06-26
    • SAMSUNG ELECTRONICS CO., LTD.
    • Myung Jin Kang
    • H01L21/20H01L45/00H01L27/24
    • H01L45/1683H01L27/2409H01L27/2436H01L27/2445H01L45/06H01L45/1233H01L45/143H01L45/144H01L45/16H01L45/1608
    • A method of forming a variable resistive memory device includes forming a conductive pattern that alternates with a first insulation pattern along a first direction on a substrate that is parallel with a surface of the substrate, forming a preliminary sacrificial pattern on the conductive pattern that contacts a sidewall of the first insulation pattern, etching the conductive pattern using the preliminary sacrificial pattern as an etch masks to form a preliminary bottom electrode pattern, patterning the preliminary sacrificial pattern and the preliminary bottom electrode pattern to form a sacrificial pattern and a bottom electrode pattern that each include at least two portions which are separated from each other along a second direction intersecting the first direction, and replacing the sacrificial pattern with a variable resistive pattern.
    • 一种形成可变电阻式存储器件的方法包括:在与衬底的表面平行的衬底上沿第一方向形成与第一绝缘图案交替的导电图案,在与衬底的表面平行的衬底上形成初步牺牲图案, 第一绝缘图案的侧壁,使用预备牺牲图案蚀刻导电图案作为蚀刻掩模以形成初步底部电极图案,图案化初步牺牲图案和预备底部电极图案以形成牺牲图案和底部电极图案, 每个包括沿着与第一方向相交的第二方向彼此分离的至少两个部分,并且以可变电阻图案替换牺牲图案。