LOGIC CHIP INCLUDING EMBEDDED MAGNETIC TUNNEL JUNCTIONS
    9.
    发明申请
    LOGIC CHIP INCLUDING EMBEDDED MAGNETIC TUNNEL JUNCTIONS 有权
    逻辑芯片,包括嵌入式磁性隧道结

    公开(公告)号:US20140264679A1

    公开(公告)日:2014-09-18

    申请号:US13994716

    申请日:2013-03-15

    IPC分类号: H01L43/02 H01L43/12

    摘要: An embodiment integrates memory, such as spin-torque transfer magnetoresistive random access memory (STT-MRAM) within a logic chip. The STT-MRAM includes a magnetic tunnel junction (MTJ) with an upper MTJ layer, lower MTJ layer, and tunnel barrier directly contacting the upper MTJ layer and the lower MTJ layer; wherein the upper MTJ layer includes an upper MTJ layer sidewall and the lower MTJ layer includes a lower MTJ sidewall horizontally offset from the upper MTJ layer. Another embodiment includes a memory area, comprising a MTJ, and a logic area located on a substrate; wherein a horizontal plane intersects the MTJ, a first Inter-Layer Dielectric (ILD) material adjacent the MTJ, and a second ILD material included in the logic area, the first and second ILD materials being unequal to one another. In an embodiment the first and second ILDs directly contact one another. Other embodiments are described herein.

    摘要翻译: 实施例将逻辑芯片内的诸如自旋转矩传递磁阻随机存取存储器(STT-MRAM)的存储器集成。 STT-MRAM包括具有上部MTJ层,较低MTJ层和直接接触上层MTJ层和下层MTJ层的隧道势垒的磁隧道结(MTJ); 其中上MTJ层包括上MTJ层侧壁,下MTJ层包括水平地偏离上MTJ层的下MTJ侧壁。 另一个实施例包括包含MTJ的存储区域和位于衬底上的逻辑区域; 其中水平面与MTJ相邻,邻近MTJ的第一层间电介质(ILD)材料和包含在逻辑区域中的第二ILD材料,第一和第二ILD材料彼此不相等。 在一个实施例中,第一和第二ILD直接彼此接触。 本文描述了其它实施例。

    HARD MASK ETCH STOP FOR TALL FINS
    10.
    发明申请
    HARD MASK ETCH STOP FOR TALL FINS 有权
    硬盘防火墙防火墙

    公开(公告)号:US20140191300A1

    公开(公告)日:2014-07-10

    申请号:US13997161

    申请日:2011-12-31

    IPC分类号: H01L29/66 H01L29/78

    摘要: A hard mask etch stop is formed on the top surface of tall fins to preserve the fin height and protect the top surface of the fin from damage during etching steps of the transistor fabrication process. In an embodiment, the hard mask etch stop is formed using a dual hard mask system, wherein a hard mask etch stop layer is formed over the surface of a substrate, and a second hard mask layer is used to pattern a fin with a hard mask etch stop layer on the top surface of the fin. The second hard mask layer is removed, while the hard mask etch stop layer remains to protect the top surface of the fin during subsequent fabrication steps.

    摘要翻译: 在高鳍的顶表面上形成硬掩模蚀刻停止件以保持翅片高度,并且在晶体管制造工艺的蚀刻步骤期间保护翅片的顶表面免受损坏。 在一个实施例中,使用双硬掩模系统形成硬掩模蚀刻停止件,其中在衬底的表面上形成硬掩模蚀刻停止层,并且使用第二硬掩模层来用硬掩模 在鳍的顶表面上的蚀刻停止层。 去除第二硬掩模层,同时保留硬掩模蚀刻停止层以在随后的制造步骤期间保护翅片的顶表面。