Phase change memory elements having a confined portion of phase change material on a recessed contact
    3.
    发明授权
    Phase change memory elements having a confined portion of phase change material on a recessed contact 失效
    相变存储元件在凹陷触点上具有相变材料的限定部分

    公开(公告)号:US07804084B2

    公开(公告)日:2010-09-28

    申请号:US12113846

    申请日:2008-05-01

    IPC分类号: H01L45/00

    摘要: Methods of fabricating phase change memory elements include forming an insulating layer on a semiconductor substrate, forming a through hole penetrating the insulating layer, forming a lower electrode in the through hole and forming a recess having a sidewall comprising a portion of the insulating layer by selectively etching a surface of the lower electrode relative to the insulating layer. A phase change memory layer is formed on the lower electrode. The phase change memory layer has a portion confined by the recess and surrounded by the insulating layer. An upper electrode is formed on the phase change memory layer. Phase change memory elements are also provided.

    摘要翻译: 制造相变存储元件的方法包括在半导体衬底上形成绝缘层,形成穿透绝缘层的通孔,在通孔中形成下电极,并通过选择性地形成具有侧壁的凹部,该侧壁包括绝缘层的一部分 相对于绝缘层蚀刻下电极的表面。 在下电极上形成相变存储层。 相变存储层具有被凹部限制并被绝缘层包围的部分。 在相变存储层上形成上电极。 还提供相变存储元件。

    PHASE CHANGE MEMORY ELEMENTS HAVING A CONFINED PORTION OF PHASE CHANGE MATERIAL ON A RECESSED CONTACT
    4.
    发明申请

    公开(公告)号:US20080230762A1

    公开(公告)日:2008-09-25

    申请号:US12113846

    申请日:2008-05-01

    IPC分类号: H01L45/00

    摘要: Methods of fabricating phase change memory elements include forming an insulating layer on a semiconductor substrate, forming a through hole penetrating the insulating layer, forming a lower electrode in the through hole and forming a recess having a sidewall comprising a portion of the insulating layer by selectively etching a surface of the lower electrode relative to the insulating layer. A phase change memory layer is formed on the lower electrode. The phase change memory layer has a portion confined by the recess and surrounded by the insulating layer. An upper electrode is formed on the phase change memory layer. Phase change memory elements are also provided.

    摘要翻译: 制造相变存储元件的方法包括在半导体衬底上形成绝缘层,形成穿透绝缘层的通孔,在通孔中形成下电极,并通过选择性地形成具有侧壁的凹部,该侧壁包括绝缘层的一部分 相对于绝缘层蚀刻下电极的表面。 在下电极上形成相变存储层。 相变存储层具有被凹部限制并被绝缘层包围的部分。 在相变存储层上形成上电极。 还提供相变存储元件。

    Methods of fabricating phase change memory elements having a confined portion of phase change material on a recessed contact
    6.
    发明授权
    Methods of fabricating phase change memory elements having a confined portion of phase change material on a recessed contact 有权
    在凹陷触点上制造具有相变材料的限定部分的相变存储元件的方法

    公开(公告)号:US07384825B2

    公开(公告)日:2008-06-10

    申请号:US11100759

    申请日:2005-04-07

    IPC分类号: H01I21/332

    摘要: Methods of fabricating phase change memory elements include forming an insulating layer on a semiconductor substrate, forming a through hole penetrating the insulating layer, forming a lower electrode in the through hole and forming a recess having a sidewall comprising a portion of the insulating layer by selectively etching a surface of the lower electrode relative to the insulating layer. A phase change memory layer is formed on the lower electrode. The phase change memory layer has a portion confined by the recess and surrounded by the insulating layer. An upper electrode is formed on the phase change memory layer. Phase change memory elements are also provided.

    摘要翻译: 制造相变存储元件的方法包括在半导体衬底上形成绝缘层,形成穿透绝缘层的通孔,在通孔中形成下电极,并通过选择性地形成具有侧壁的凹部,该侧壁包括绝缘层的一部分 相对于绝缘层蚀刻下电极的表面。 在下电极上形成相变存储层。 相变存储层具有被凹部限制并被绝缘层包围的部分。 上电极形成在相变存储层上。 还提供相变存储元件。