Method for structuring a layered structure from two semiconductor layers, and micromechanical component
    76.
    发明授权
    Method for structuring a layered structure from two semiconductor layers, and micromechanical component 有权
    从两个半导体层构造层状结构的方法和微机械部件

    公开(公告)号:US09490137B2

    公开(公告)日:2016-11-08

    申请号:US14616004

    申请日:2015-02-06

    Abstract: A method for structuring a layered structure, for example, of a micromechanical component, from two semiconductor layers between which an insulating and/or etch stop layer is situated includes forming a first etching mask on a first side of the first semiconductor layer, carrying out a first etching step, starting from a first outer side, for structuring the first semiconductor layer, forming a second etching mask on a second side of the second semiconductor layer, and carrying out a second etching step, starting from the second outer side, for structuring the second semiconductor layer. After carrying out the first etching step and prior to carrying out the second etching step, at least one etching protection material is deposited on at least one trench wall of at least one first trench, which is etched in the first etching step.

    Abstract translation: 用于从两个半导体层构成诸如微机械部件的分层结构的绝缘和/或蚀刻停止层的方法包括在第一半导体层的第一侧上形成第一蚀刻掩模,执行 第一蚀刻步骤,从第一外侧开始,用于构造第一半导体层,在第二半导体层的第二侧上形成第二蚀刻掩模,并且执行第二蚀刻步骤,从第二外侧开始,用于 构造第二半导体层。 在执行第一蚀刻步骤之后并且在进行第二蚀刻步骤之前,至少一个蚀刻保护材料沉积在至少一个第一沟槽的至少一个沟槽壁上,该第一沟槽在第一蚀刻步骤中被蚀刻。

    Electronic Device, Physical Quantity Sensor, Pressure Sensor, Altimeter, Electronic Apparatus, And Moving Object
    80.
    发明申请
    Electronic Device, Physical Quantity Sensor, Pressure Sensor, Altimeter, Electronic Apparatus, And Moving Object 有权
    电子设备,物理量传感器,压力传感器,高度计,电子设备和移动物体

    公开(公告)号:US20160137494A1

    公开(公告)日:2016-05-19

    申请号:US14943315

    申请日:2015-11-17

    Inventor: Nobuyuki Tanaka

    Abstract: An physical quantity sensor includes a substrate, a piezoelectric resistive element that is disposed on one surface side of the substrate, a wall portion that is disposed on the one surface side of the substrate so as to surround the piezoelectric resistive element in a plan view of the substrate, and a ceiling portion that is disposed on an opposite side to the substrate with respect to the wall portion and forms a cavity along with the wall portion, in which the wall portion includes an insulating layer, and wiring layers that surround the insulating layer together and have higher resistance to an etchant which can etch the insulating layer than resistance of the insulating layer.

    Abstract translation: 物理量传感器包括基板,设置在基板的一个表面侧的压电电阻元件,设置在基板的一个表面侧上以围绕压电电阻元件的平面图的壁部分 基板和顶壁部分,其相对于壁部分设置在与基板相对的一侧上,并与壁部分一起形成空腔,壁部分包括绝缘层,以及围绕绝缘层的布线层 并且对蚀刻绝缘层的蚀刻剂具有比绝缘层的电阻更高的耐性。

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