Trench capacitors with insulating layer collars in undercut regions
    4.
    发明授权
    Trench capacitors with insulating layer collars in undercut regions 失效
    带有绝缘层的沟槽电容器在底切区域

    公开(公告)号:US07531861B2

    公开(公告)日:2009-05-12

    申请号:US12033065

    申请日:2008-02-19

    IPC分类号: H01L29/94

    摘要: Trench capacitors that have insulating layer collars in undercut regions and methods of fabricating such trench capacitors are provided. Some methods of fabricating a trench capacitor include forming a first layer on a substrate. A second layer is formed on the first layer opposite to the substrate. A mask is formed that has an opening on top of the first and second layers. A first trench is formed by removing a portion of the first and second layers through the opening in the mask. A portion of the first layer under the second layer is removed to form an undercut region under the second layer. An insulating layer collar is formed in the undercut region under the second layer. A second trench is formed that extends from the first trench by removing a portion of the substrate through the opening in the mask. A buried plate is formed in the substrate along the second trench. A dielectric layer is formed on an inner wall and bottom of the second trench. A storage electrode is formed in the second trench on the dielectric layer.

    摘要翻译: 提供了在底切区域中具有绝缘层套环的沟槽电容器和制造这种沟槽电容器的方法。 制造沟槽电容器的一些方法包括在衬底上形成第一层。 在与衬底相对的第一层上形成第二层。 形成在第一和第二层的顶部上具有开口的掩模。 通过从掩模中的开口去除第一层和第二层的一部分来形成第一沟槽。 除去第二层下面的第一层的一部分,以在第二层下形成底切区域。 在第二层下方的底切区域中形成绝缘层套环。 形成第二沟槽,其通过从掩模中的开口去除衬底的一部分而从第一沟槽延伸。 掩埋板沿着第二沟槽形成在衬底中。 介电层形成在第二沟槽的内壁和底部上。 在电介质层上的第二沟槽中形成存储电极。

    TRENCH CAPACITORS WITH INSULATING LAYER COLLARS IN UNDERCUT REGIONS
    6.
    发明申请
    TRENCH CAPACITORS WITH INSULATING LAYER COLLARS IN UNDERCUT REGIONS 失效
    在内陆地区具有绝缘层的TRENCH电容器

    公开(公告)号:US20080135876A1

    公开(公告)日:2008-06-12

    申请号:US12033065

    申请日:2008-02-19

    IPC分类号: H01L29/94

    摘要: Trench capacitors that have insulating layer collars in undercut regions and methods of fabricating such trench capacitors are provided. Some methods of fabricating a trench capacitor include forming a first layer on a substrate. A second layer is formed on the first layer opposite to the substrate. A mask is formed that has an opening on top of the first and second layers. A first trench is formed by removing a portion of the first and second layers through the opening in the mask. A portion of the first layer under the second layer is removed to form an undercut region under the second layer. An insulating layer collar is formed in the undercut region under the second layer. A second trench is formed that extends from the first trench by removing a portion of the substrate through the opening in the mask. A buried plate is formed in the substrate along the second trench. A dielectric layer is formed on an inner wall and bottom of the second trench. A storage electrode is formed in the second trench on the dielectric layer.

    摘要翻译: 提供了在底切区域中具有绝缘层套环的沟槽电容器和制造这种沟槽电容器的方法。 制造沟槽电容器的一些方法包括在衬底上形成第一层。 在与衬底相对的第一层上形成第二层。 形成在第一和第二层的顶部上具有开口的掩模。 通过从掩模中的开口去除第一层和第二层的一部分来形成第一沟槽。 除去第二层下面的第一层的一部分,以在第二层下形成底切区域。 在第二层下方的底切区域中形成绝缘层套环。 形成第二沟槽,其通过从掩模中的开口去除衬底的一部分而从第一沟槽延伸。 掩埋板沿着第二沟槽形成在衬底中。 介电层形成在第二沟槽的内壁和底部上。 在电介质层上的第二沟槽中形成存储电极。

    Methods of fabricating trench capacitors with insulating layer collars in undercut regions
    7.
    发明授权
    Methods of fabricating trench capacitors with insulating layer collars in undercut regions 失效
    在底切区域制造具有绝缘层环的沟槽电容器的方法

    公开(公告)号:US07354821B2

    公开(公告)日:2008-04-08

    申请号:US11037626

    申请日:2005-01-18

    IPC分类号: H01L21/8242 H01L21/336

    摘要: Trench capacitors that have insulating layer collars in undercut regions and methods of fabricating such trench capacitors are provided. Some methods of fabricating a trench capacitor include forming a first layer on a substrate. A second layer is formed on the first layer opposite to the substrate. A mask is formed that has an opening on top of the first and second layers. A first trench is formed by removing a portion of the first and second layers through the opening in the mask. A portion of the first layer under the second layer is removed to form an undercut region under the second layer. An insulating layer collar is formed in the undercut region under the second layer. A second trench is formed that extends from the first trench by removing a portion of the substrate through the opening in the mask. A buried plate is formed in the substrate along the second trench. A dielectric layer is formed on an inner wall and bottom of the second trench. A storage electrode is formed in the second trench on the dielectric layer.

    摘要翻译: 提供了在底切区域中具有绝缘层套环的沟槽电容器和制造这种沟槽电容器的方法。 制造沟槽电容器的一些方法包括在衬底上形成第一层。 在与衬底相对的第一层上形成第二层。 形成在第一和第二层的顶部上具有开口的掩模。 通过从掩模中的开口去除第一层和第二层的一部分来形成第一沟槽。 除去第二层下面的第一层的一部分,以在第二层下形成底切区域。 在第二层下方的底切区域中形成绝缘层套环。 形成第二沟槽,其通过从掩模中的开口去除衬底的一部分而从第一沟槽延伸。 掩埋板沿着第二沟槽形成在衬底中。 介电层形成在第二沟槽的内壁和底部上。 在电介质层上的第二沟槽中形成存储电极。

    Method of Fabricating Semiconductor Device
    10.
    发明申请
    Method of Fabricating Semiconductor Device 有权
    制造半导体器件的方法

    公开(公告)号:US20130244445A1

    公开(公告)日:2013-09-19

    申请号:US13775595

    申请日:2013-02-25

    IPC分类号: H01L21/02

    摘要: Methods of fabricating a semiconductor device include forming a deposited film on a semiconductor substrate in a process chamber by repeatedly forming unit layers on the semiconductor substrate. The unit layer is formed by forming a preliminary unit layer on the semiconductor substrate by supplying a process material including a precursor material and film-control material into the process chamber, purging the process chamber, forming a unit layer from the preliminary unit layer, and again purging the process chamber. The precursor material includes a central atom and a ligand bonded to the central atom, and the film-control material includes a hydride of the ligand.

    摘要翻译: 制造半导体器件的方法包括通过在半导体衬底上重复形成单位层,在处理室中的半导体衬底上形成沉积膜。 单元层通过在半导体基板上形成预备单元层而形成,该方法是将包括前体材料和薄膜控制材料的处理材料供应到处理室中,从处理室中清除处理室,从预备单元层形成单位层,以及 再次清洗处理室。 前体材料包括中心原子和与中心原子键合的配体,膜控制材料包括配体的氢化物。