Accelerometer sensor of crystalline material and method for
manufacturing the same
    21.
    发明授权
    Accelerometer sensor of crystalline material and method for manufacturing the same 失效
    结晶材料的加速度传感器及其制造方法

    公开(公告)号:US5578755A

    公开(公告)日:1996-11-26

    申请号:US348700

    申请日:1994-12-02

    Abstract: In an accelerometer sensor of crystalline material, whose components are composed partly of monocrystalline and partly of polycrystalline material, a band-shaped seismic mass preferably is composed of polycrystalline material, whose suspension by means of suspension segments of monocrystalline material at the end regions permits a movement in the longitudinal direction upon the occurrence of an acceleration. Parallel plates extend from this mass at right angles to their longitudinal direction and, together with additional plates, which run parallel to said plates and are anchored at a base, form a capacitor arrangement and are composed, in particular, of monocrystalline material. At least the monocrystalline material is doped to attain an electric conductivity. When lightly doped, the long and thin plates and suspension segments have a high conductivity, given a very small mechanical prestressing, and can easily be isotropically undercut. The polycrystalline formation of the seismic mass can be designed to be very wide and large by etching away an underlying sacrificial oxide.

    Abstract translation: 在结晶材料的加速度传感器中,其部件部分由单晶组成,部分由多晶材料组成,带状地震质量体优选地由多晶材料组成,其结晶区域的单晶材料悬浮段的悬浮液允许 发生加速时的纵向移动。 平行板从该质量块垂直于其纵向方向延伸,并且与另外的板一起平行于所述板并锚定在基座上,形成电容器布置,并且特别地由单晶材料组成。 至少单晶材料被掺杂以获得导电性。 当轻掺杂时,长且薄的板和悬浮段具有高导电性,给定非常小的机械预应力,并且可以容易地各向同性地切削。 通过蚀刻掉潜在的牺牲氧化物,可以将地震块的多晶形成设计得非常宽和大。

    Micromechanical sensor element, method for manufacturing a micromechanical sensor element and method for operating a micromechanical sensor element
    22.
    发明申请
    Micromechanical sensor element, method for manufacturing a micromechanical sensor element and method for operating a micromechanical sensor element 有权
    微机械传感器元件,微机械传感器元件的制造方法以及操作微机械传感器元件的方法

    公开(公告)号:US20100011860A1

    公开(公告)日:2010-01-21

    申请号:US12459993

    申请日:2009-07-09

    CPC classification number: G01P15/125 G01P2015/0831

    Abstract: A micromechanical sensor element includes: a substrate; a first seismic mass suspended from the substrate, which is deflectable from a first rest position by an acceleration acting perpendicularly to a main plane of extension; and a second seismic mass, which is deflectable from a second rest position by the acceleration. At least a partial overlap is provided between the first seismic mass and the second seismic mass perpendicular to the main plane of extension.

    Abstract translation: 微机械传感器元件包括:基板; 从衬底悬挂的第一个地震质量块,其通过垂直于主平面延伸的加速度从第一静止位置偏转; 以及第二地震质量块,其可以通过加速度从第二静止位置偏转。 在第一抗震块与垂直于主延伸平面的第二震震块之间至少提供部分重叠。

    Sensor with at least one micromechanical structure, and method for producing it
    23.
    发明授权
    Sensor with at least one micromechanical structure, and method for producing it 有权
    具有至少一个微机械结构的传感器及其制造方法

    公开(公告)号:US07273764B2

    公开(公告)日:2007-09-25

    申请号:US11028370

    申请日:2005-01-03

    Abstract: The invention relates to a sensor with at least one silicon-based micromechanical structure, which is integrated with a sensor chamber of a foundation wafer, and with at least one covering that covers the foundation wafer in the region of the sensor chamber, and to a method for producing a sensor. It is provided that in the sensor of the invention, the covering (13) comprises a first layer (32) (deposition layer) that is permeable to an etching medium and the reaction products, and a hermetically sealing second layer (34) (sealing layer) located above it, and that in the method of the invention, at least the sensor chamber (28) present in the foundation wafer (11) after the establishment of the structure (26) is filled with an oxide (30), in particular CVD oxide or porous oxide; the sensor chamber (28) is covered by a first layer (32) (deposition layer), in particular of polysilicon, that is transparent to an etching medium and the reaction products or is retroactively made transparent; the oxide (30) in the sensor chamber (28) is removed through the deposition layer (32) with the etching medium; and next, a second layer (34) (sealing layer), in particular of metal or an insulator, is applied to the deposition layer (32) and hermetically seals off the sensor chamber (28).

    Abstract translation: 本发明涉及具有至少一个硅基微机械结构的传感器,其与基础晶片的传感器室结合,并且在传感器室的区域中具有覆盖基础晶片的至少一个覆盖物,以及至少一个 传感器的制造方法 设置在本发明的传感器中,覆盖物(13)包括可蚀刻介质和反应产物的第一层(沉积层)和密封的第二层(34)(密封 层),并且在本发明的方法中,在建立结构(26)之后,至少存在于基础晶片(11)中的传感器室(28)填充有氧化物(30),其中 特定的CVD氧化物或多孔氧化物; 传感器室(28)由对蚀刻介质和反应产物透明的或者具有回溯性的透明的第一层(32)(沉积层)(特别是多晶硅)覆盖; 传感器室(28)中的氧化物(30)通过蚀刻介质通过沉积层(32)去除; 接下来,将特别是金属或绝缘体的第二层(34)(密封层)施加到沉积层(32)并气密地密封传感器室(28)。

    Method of manufacturing micromechanical surface structures by vapor-phase etching
    29.
    发明授权
    Method of manufacturing micromechanical surface structures by vapor-phase etching 失效
    通过气相蚀刻制造微机械表面结构的方法

    公开(公告)号:US06558559B1

    公开(公告)日:2003-05-06

    申请号:US09019011

    申请日:1998-02-05

    CPC classification number: B81C1/00

    Abstract: A method of sacrificial layer etching of micromechanical surface structures, in which a sacrificial layer is deposited on a heatable silicon substrate and is structured. A temperature difference between the substrate and the vapor phase of an etching medium is established in such a way that exposed metal contacts made of aluminum alloys are not attacked at the same time and are not subsequently exposed to any risk of corrosion.

    Abstract translation: 一种牺牲层蚀刻微机械表面结构的方法,其中牺牲层沉积在可加热的硅衬底上并被构造。 蚀刻介质的衬底和气相之间的温度差异以这样的方式建立,使得由铝合金制成的暴露的金属触点不会同时受到冲击,并且不会随后暴露于任何腐蚀的风险。

    Method for manufacturing a micromechanical component
    30.
    发明授权
    Method for manufacturing a micromechanical component 有权
    微机械部件的制造方法

    公开(公告)号:US06368885B1

    公开(公告)日:2002-04-09

    申请号:US09641438

    申请日:2000-08-17

    Abstract: A method for manufacturing a micromechanical component, in particular, a surface-micromechanical yaw sensor, includes the following steps: providing a substrate having a front side and a back side; forming a micromechanical pattern on the front side; applying a protective layer on the micromechanical pattern on the front side; forming a micromechanical pattern on the back side, a resting on the micromechanical pattern on the front side taking place at least temporarily; removing the protective layer on the front side; and optionally further processing the micromechanical pattern on the front side and/or the micromechanical pattern on the back side.

    Abstract translation: 一种用于制造微机械部件,特别是表面微机械偏航传感器的方法包括以下步骤:提供具有前侧和后侧的基板; 在前侧形成微机械图案; 在前侧的微机械图案上施加保护层; 在后侧形成微机械图案,其至少暂时发生在正面上的微机械图案上; 去除前侧的保护层; 并且可选地进一步处理前侧上的微机械图案和/或后侧的微机械图案。

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