Transistor, method of manufacturing same, etchant for use during manufacture of same, and system containing same
    5.
    发明申请
    Transistor, method of manufacturing same, etchant for use during manufacture of same, and system containing same 有权
    晶体管及其制造方法,在其制造过程中使用的蚀刻剂以及含有其的体系

    公开(公告)号:US20080128763A1

    公开(公告)日:2008-06-05

    申请号:US11607549

    申请日:2006-11-30

    CPC classification number: H01L21/32134 H01L21/76834 H01L21/76897

    Abstract: A transistor comprises a gate (110) comprising a gate electrode (111) and a gate dielectric (112), an electrically insulating cap (120, 720) over the gate, and a source/drain contact (130) adjacent to the gate. The electrically insulating cap prevents electrical contact between the gate and the source/drain contact. In one embodiment, the electrically insulating cap is formed in a trench (160, 660) that is self-aligned to the gate and that is created by the removal of a sacrificial cap using an aqueous solution comprising a carboxylic acid and a corrosion inhibitor.

    Abstract translation: 晶体管包括栅极(110),栅极(110)包括栅极电极(111)和栅极电介质(112),栅极上的电绝缘盖(120,720)以及与栅极相邻的源极/漏极接触(130)。 电绝缘帽防止栅极和源极/漏极接触之间的电接触。 在一个实施例中,电绝缘帽形成在与浇口自对准的沟槽(160,660)中,并且通过使用包含羧酸和腐蚀抑制剂的水溶液去除牺牲帽而产生。

    WRAP-AROUND TRENCH CONTACT STRUCTURE AND METHODS OF FABRICATION
    10.
    发明申请
    WRAP-AROUND TRENCH CONTACT STRUCTURE AND METHODS OF FABRICATION 有权
    WRAP-AROUND TRENCH接触结构和制造方法

    公开(公告)号:US20140159159A1

    公开(公告)日:2014-06-12

    申请号:US13996523

    申请日:2011-12-30

    Abstract: A wrap-around source/drain trench contact structure is described. A plurality of semiconductor fins extend from a semiconductor substrate. A channel region is disposed in each fin between a pair of source/drain regions. An epitaxial semiconductor layer covers the top surface and sidewall surfaces of each fin over the source/drain regions, defining high aspect ratio gaps between adjacent fins. A pair of source/drain trench contacts are electrically coupled to the epitaxial semiconductor layers. The source/drain trench contacts comprise a conformal metal layer and a fill metal. The conformal metal layer conforms to the epitaxial semiconductor layers. The fill metal comprises a plug and a barrier layer, wherein the plug fills a contact trench formed above the fins and the conformal metal layer, and the barrier layer lines the plug to prevent interdiffusion of the conformal metal layer material and plug material.

    Abstract translation: 描述了环绕的源极/漏极沟槽接触结构。 多个半导体鳍片从半导体衬底延伸。 沟道区域设置在每个鳍片之间的一对源极/漏极区域之间。 外延半导体层覆盖源极/漏极区域上的每个鳍的顶表面和侧壁表面,限定相邻鳍片之间的高纵横比间隙。 一对源/漏沟槽触点电耦合到外延半导体层。 源极/漏极沟槽触点包括保形金属层和填充金属。 保形金属层符合外延半导体层。 填充金属包括塞子和阻挡层,其中塞子填充形成在鳍片和保形金属层之上的接触沟槽,并且阻挡层对插塞进行引线以防止共形金属层材料和插塞材料的相互扩散。

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