Phase-changeable memory devices and methods of forming the same
    62.
    发明申请
    Phase-changeable memory devices and methods of forming the same 有权
    相变存储器件及其形成方法

    公开(公告)号:US20060072370A1

    公开(公告)日:2006-04-06

    申请号:US11205742

    申请日:2005-08-17

    IPC分类号: G11C8/02

    摘要: A phase-changeable memory device includes a substrate having a contact region on an upper surface thereof. An insulating interlayer on the substrate has an opening therein, and a lower electrode is formed in the opening. The lower electrode has a nitrided surface portion and is in electrical contact with the contact region of the substrate. A phase-changeable material layer pattern is on the lower electrode, and an upper electrode is on the phase-changeable material layer pattern. The insulating interlayer may have a nitrided surface portion and the phase-changeable material layer may be at least partially on the nitrided surface portion of the insulating interlayer. A nitride layer may be formed on the insulating interlayer. The lower electrode may have a nitrided surface portion and the phase-changeable material layer may be at least partially on the nitrided surface portion of the lower electrode. Methods of forming phase-changeable memory devices are also disclosed.

    摘要翻译: 相变型存储器件包括在其上表面具有接触区域的衬底。 衬底上的绝缘中间层具有开口,并且在开口中形成下电极。 下电极具有氮化表面部分并且与衬底的接触区域电接触。 相变材料层图案位于下电极上,上电极位于相变材料层图案上。 绝缘中间层可以具有氮化表面部分,并且相变材料层可以至少部分地在绝缘中间层的氮化表面部分上。 可以在绝缘中间层上形成氮化物层。 下部电极可以具有氮化表面部分,并且相变材料层可以至少部分地位于下部电极的氮化表面部分上。 还公开了形成相变存储器件的方法。

    Methods for manufacturing a phase-change memory device
    64.
    发明授权
    Methods for manufacturing a phase-change memory device 有权
    相变存储器件的制造方法

    公开(公告)号:US08133429B2

    公开(公告)日:2012-03-13

    申请号:US12762560

    申请日:2010-04-19

    IPC分类号: B28B1/00 C23C14/06

    摘要: In a method of forming a chalcogenide compound target, a first powder including germanium carbide or germanium is prepared, and a second powder including antimony carbide or antimony is prepared. A third powder including tellurium carbide or tellurium is prepared. A powder mixture is formed by mixing the first to the third powders. After a shaped is formed body by molding the powder mixture. The chalcogenide compound target is obtained by sintering the powder mixture. The chalcogenide compound target may include a chalcogenide compound that contains carbon and metal, or carbon, metal and nitrogen considering contents of carbon, metal and nitrogen, so that a phase-change material layer formed using the chalcogenide compound target may stable phase transition, enhanced crystallized temperature and increased resistance. A phase-change memory device including the phase-change material layer may have reduced set resistance and driving current while improving durability and sensing margin.

    摘要翻译: 在形成硫属化物化合物靶的方法中,制备包括碳化锗或锗的第一粉末,并制备包含锑或锑的第二粉末。 制备包括碲化镉或碲的第三种粉末。 通过混合第一至第三粉末形成粉末混合物。 通过模制粉末混合物形成成形体后。 通过烧结粉末混合物获得硫属化物化合物靶。 考虑到碳,金属和氮的含量,硫属化物化合物靶可以包括含有碳和金属或碳,金属和氮的硫属化物化合物,使得使用硫属化物化合物靶形成的相变材料层可以稳定的相变,增强 结晶温度和阻力增加。 包括相变材料层的相变存储器件可以降低设定电阻和驱动电流,同时提高耐久性和感测裕度。

    Multi-layer phase-changeable memory devices
    66.
    发明授权
    Multi-layer phase-changeable memory devices 有权
    多层可相变存储器件

    公开(公告)号:US07943918B2

    公开(公告)日:2011-05-17

    申请号:US12568402

    申请日:2009-09-28

    IPC分类号: H01L45/00

    摘要: A phase-changeable memory device includes a phase-changeable material pattern and first and second electrodes electrically connected to the phase-changeable material pattern. The first and second electrodes are configured to provide an electrical signal to the phase-changeable material pattern. The phase-changeable material pattern includes a first phase-changeable material layer and a second phase-changeable material layer. The first and second phase-changeable material patterns have different chemical, physical, and/or electrical characteristics. For example, the second phase-changeable material layer may have a greater resistivity than the first phase-changeable material layer. For instance, the first phase-changeable material layer may include nitrogen at a first concentration, and the second phase-changeable material layer may include nitrogen at a second concentration that is greater than the first concentration. Related devices and fabrication methods are also discussed.

    摘要翻译: 可变相存储器件包括相变材料图案,以及电连接到相变材料图案的第一和第二电极。 第一和第二电极被配置为向相变材料图案提供电信号。 相变材料图案包括第一相变材料层和第二相变材料层。 第一和第二可相变材料图案具有不同的化学,物理和/或电特性。 例如,第二可相变材料层的电阻率可以比第一相变材料层更大。 例如,第一相变材料层可以包括第一浓度的氮,第二相变材料层可以包括大于第一浓度的第二浓度的氮。 还讨论了相关设备和制造方法。

    Methods of Manufacturing Phase-Changeable Memory Devices
    67.
    发明申请
    Methods of Manufacturing Phase-Changeable Memory Devices 有权
    制造相变存储器件的方法

    公开(公告)号:US20100221879A1

    公开(公告)日:2010-09-02

    申请号:US12777599

    申请日:2010-05-11

    IPC分类号: H01L21/8239 H01L45/00

    摘要: A phase-changeable memory device includes a substrate having a contact region on an upper surface thereof. An insulating interlayer on the substrate has an opening therein, and a lower electrode is formed in the opening. The lower electrode has a nitrided surface portion and is in electrical contact with the contact region of the substrate. A phase-changeable material layer pattern is on the lower electrode, and an upper electrode is on the phase-changeable material layer pattern. The insulating interlayer may have a nitrided surface portion and the phase-changeable material layer may be at least partially on the nitrided surface portion of the insulating interlayer. Methods of forming phase-changeable memory devices are also disclosed.

    摘要翻译: 相变型存储器件包括在其上表面具有接触区域的衬底。 衬底上的绝缘中间层具有开口,并且在开口中形成下电极。 下电极具有氮化表面部分并且与衬底的接触区域电接触。 相变材料层图案位于下电极上,上电极位于相变材料层图案上。 绝缘中间层可以具有氮化表面部分,并且相变材料层可以至少部分地在绝缘中间层的氮化表面部分上。 还公开了形成相变存储器件的方法。

    RESISTANCE VARIABLE MEMORY DEVICES AND METHODS OF FABRICATING THE SAME
    68.
    发明申请
    RESISTANCE VARIABLE MEMORY DEVICES AND METHODS OF FABRICATING THE SAME 审中-公开
    电阻可变存储器件及其制造方法

    公开(公告)号:US20100176365A1

    公开(公告)日:2010-07-15

    申请号:US12684140

    申请日:2010-01-08

    IPC分类号: H01L45/00 H01L29/18 H01L21/02

    摘要: A resistance variable memory device includes at least one bottom electrode, a first insulating layer containing a trench which exposes the at least one bottom electrode, and a resistance variable material layer including respective first and second portions located on opposite sidewalls of the trench, respectively, where the first and second portions of the resistance variable material layer are electrically connected to the at least one bottom electrode. The device further includes a protective layer covering the resistance variable material layer within the trench, and a second insulating layer located within the trench and covering the protective layer within the trench

    摘要翻译: 电阻可变存储器件包括至少一个底部电极,包含暴露至少一个底部电极的沟槽的第一绝缘层,以及包括分别位于沟槽的相对侧壁上的各自的第一和第二部分的电阻可变材料层, 其中电阻可变材料层的第一和第二部分电连接到至少一个底部电极。 该装置还包括覆盖沟槽内的电阻可变材料层的保护层和位于沟槽内并覆盖沟槽内的保护层的第二绝缘层