Silicon germanium mask for deep silicon etching
    72.
    发明授权
    Silicon germanium mask for deep silicon etching 有权
    用于深硅蚀刻的硅锗掩模

    公开(公告)号:US08791021B2

    公开(公告)日:2014-07-29

    申请号:US13409868

    申请日:2012-03-01

    Abstract: Polycrystalline silicon germanium (SiGe) can offer excellent etch selectivity to silicon during cryogenic deep reactive ion etching in an SF6/O2 plasma. Etch selectivity of over 800:1 (Si:SiGe) may be achieved at etch temperatures from −80 degrees Celsius to −140 degrees Celsius. High aspect ratio structures with high resolution may be patterned into Si substrates using SiGe as a hard mask layer for construction of microelectromechanical systems (MEMS) devices and semiconductor devices.

    Abstract translation: 在SF6 / O2等离子体的低温深反应离子蚀刻中,多晶硅锗(SiGe)可以提供优异的硅蚀刻选择性。 在-80摄氏度至-140摄氏度的蚀刻温度下,可获得超过800:1(Si:SiGe)的蚀刻选择性。 可以使用SiGe作为用于构建微机电系统(MEMS)器件和半导体器件的硬掩模层来将具有高分辨率的高纵横比结构图案化为Si衬底。

    METHOD AND DEVICE FOR DETECTING TERMINATION OF ETCHING
    73.
    发明申请
    METHOD AND DEVICE FOR DETECTING TERMINATION OF ETCHING 审中-公开
    用于检测终止蚀刻的方法和装置

    公开(公告)号:US20140131707A1

    公开(公告)日:2014-05-15

    申请号:US14110128

    申请日:2012-11-12

    Abstract: Provide is an etching completion detection method that accurately detects an etching completion position in an SOI substrate, regardless of the width of an opening. This etching completion detection method is a method for detecting etching completion when a silicon layer is being etched to form an opening that reaches an insulating layer in an SOI substrate in which the silicon layer is disposed on the insulating layer, the method including: forming a first electrode layer on a surface of an islet region that is surrounded by a loop-shaped opening to be formed by the etching, and a second electrode layer in a region outside the stripe region; measuring an electrical resistance between the first electrode layer and the second electrode layer; and determining that the loop-shaped opening has reached an etching completion position when the electrical resistance exceeds a preset threshold.

    Abstract translation: 提供一种蚀刻完成检测方法,其能够准确地检测SOI衬底中的蚀刻完成位置,而与开口的宽度无关。 这种蚀刻完成检测方法是当硅层被蚀刻以形成在绝缘层上设置硅层的SOI衬底中到达绝缘层的开口时检测蚀刻完成的方法,该方法包括:形成 由被蚀刻形成的环形开口包围的胰岛区域的表面上的第一电极层和在条带区域外的区域中的第二电极层; 测量第一电极层和第二电极层之间的电阻; 并且当电阻超过预设阈值时,确定环形开口已经达到蚀刻完成位置。

    Method for manufacturing a micromechanical structure, and micromechanical structure
    74.
    发明授权
    Method for manufacturing a micromechanical structure, and micromechanical structure 有权
    微机械结构的制造方法和微机械结构

    公开(公告)号:US08659099B2

    公开(公告)日:2014-02-25

    申请号:US13586576

    申请日:2012-08-15

    Abstract: A method for manufacturing a micromechanical structure includes: forming a first insulation layer above a substrate; forming a first micromechanical functional layer on the first insulation layer; forming multiple first trenches in the first micromechanical functional layer, which trenches extend as far as the first insulation layer; forming a second insulation layer on the first micromechanical functional layer, which second insulation layer fills up the first trenches; forming etch accesses in the second insulation layer, which etch accesses locally expose the first micromechanical functional layer; and etching the first micromechanical functional layer through the etch accesses, the filled first trenches and the first insulation layer acting as an etch stop.

    Abstract translation: 一种制造微机械结构的方法包括:在基板上形成第一绝缘层; 在所述第一绝缘层上形成第一微机械功能层; 在所述第一微机械功能层中形成多个第一沟槽,所述沟槽延伸到所述第一绝缘层; 在所述第一微机械功能层上形成第二绝缘层,所述第二绝缘层填充所述第一沟槽; 在所述第二绝缘层中形成蚀刻访问,所述蚀刻访问局部暴露所述第一微机械功能层; 并且通过蚀刻访问蚀刻第一微机械功能层,填充的第一沟槽和用作蚀刻停止层的第一绝缘层。

    CONTROL OVER HYDROGEN FLUORIDE LEVELS IN OXIDE ETCHANT
    77.
    发明申请
    CONTROL OVER HYDROGEN FLUORIDE LEVELS IN OXIDE ETCHANT 有权
    控制氧化物中氢氟化物的含量

    公开(公告)号:US20130183773A1

    公开(公告)日:2013-07-18

    申请号:US13731296

    申请日:2012-12-31

    Abstract: The invention is directed towards methods and compositions for identifying the amount of hydrofluoric acid in a buffered oxide etching composition. In buffered oxide etching compositions it is very difficult to measure the amount of hydrofluoric acid because it has varying equilibriums and it is toxic so it hard to handle and sample. When used to manufacture microchips however, incorrect amounts of hydrofluoric acid will ruin those chips. The invention utilizes a unique method of spectrographically measuring the hydrofluoric acid when in contact with added chromogenic agents to obtain exact measurements that are accurate, immediate, and safe.

    Abstract translation: 本发明涉及用于鉴定缓冲氧化物蚀刻组合物中氢氟酸的量的方法和组合物。 在缓冲氧化物蚀刻组合物中,非常难以测量氢氟酸的量,因为其具有不同的平衡,并且它是有毒的,因此难以处理和取样。 然而,当用于制造微芯片时,不正确量的氢氟酸会破坏这些芯片。 当与添加的显色剂接触时,本发明利用光谱测量氢氟酸的独特方法,以获得准确,立即和安全的精确测量。

    STRUCTURE FOR DECREASING MINIMUM FEATURE SIZE IN AN INTEGRATED CIRCUIT
    79.
    发明申请
    STRUCTURE FOR DECREASING MINIMUM FEATURE SIZE IN AN INTEGRATED CIRCUIT 审中-公开
    在集成电路中减小最小特征尺寸的结构

    公开(公告)号:US20110115042A1

    公开(公告)日:2011-05-19

    申请号:US13005767

    申请日:2011-01-13

    Abstract: A structure for decreasing minimum feature size in an integrated circuit design that includes a substrate comprising a first material is provided. The structure comprises a layer of second material formed on a surface of the substrate and a micro-aperture formed in the layer of second material. The micro-aperture has sidewalls formed to be substantially perpendicular to the surface of the substrate and a horizontal tip formed on the surface of the substrate and extending orthogonally from a portion of the sidewalls.

    Abstract translation: 提供了一种用于降低集成电路设计中的最小特征尺寸的结构,其包括包括第一材料的基板。 该结构包括形成在基板的表面上的第二材料层和形成在第二材料层中的微孔。 微孔具有形成为基本上垂直于衬底的表面的侧壁和形成在衬底的表面上并从侧壁的一部分正交延伸的水平尖端。

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