Method of manufacturing dynamic amount semiconductor sensor
    1.
    发明授权
    Method of manufacturing dynamic amount semiconductor sensor 失效
    动态量半导体传感器的制造方法

    公开(公告)号:US6048774A

    公开(公告)日:2000-04-11

    申请号:US103935

    申请日:1998-06-25

    摘要: In a method of manufacturing a dynamic amount sensor including a beam structure and a fixed electrode which are respectively supported by anchor parts of a substrate, opening portions are formed on a first semiconductor substrate where the anchor parts are to be formed. Each of the opening portions is composed of a plurality of stripe-like openings. Then a first thin film for forming the anchor parts and a second thin film are formed on the first semiconductor substrate in that order. After the surface of the second thin film is polished, a second semiconductor substrate is bonded to the polished surface of the second thin film. In this method, because the opening portions are composed of the plurality of stripe-like openings, the second thin film is flattened without having any steps thereon.

    摘要翻译: 在制造分别由基板的锚定部支撑的梁结构和固定电极的动态量传感器的制造方法中,在要形成锚定部的第一半导体基板上形成开口部。 每个开口部分由多个条状开口组成。 然后在第一半导体衬底上依次形成用于形成锚定部分的第一薄膜和第二薄膜。 在第二薄膜的表面被抛光之后,第二半导体衬底被结合到第二薄膜的抛光表面上。 在该方法中,由于开口部分由多个条状开口组成,所以第二薄膜在其上没有任何步骤而变平。

    Semiconductor dynamic quantity sensor
    2.
    发明申请
    Semiconductor dynamic quantity sensor 审中-公开
    半导体动量传感器

    公开(公告)号:US20050001275A1

    公开(公告)日:2005-01-06

    申请号:US10849259

    申请日:2004-05-20

    摘要: An acceleration sensor comprising a spring portion joined to the base portion of a semiconductor substrate and elastically displaced in Y-direction in accordance with an applied acceleration, movable electrodes joined to the spring portion, fixed electrodes disposed to face the movable electrodes and adjusting electrodes for adjusting the spring constant of the spring portion. The spring portion has a pair of beams facing each other in the Y-direction, and is elastically deformed so that the interval between the pair of beams is varied. The adjusting electrodes are respectively equipped at the outside of one of the paired beams and at the outside of the other beam, and electrostatic force can be applied by the adjusting electrodes so that the paired beams are separated from each other.

    摘要翻译: 一种加速度传感器,包括:接合到半导体基板的基部的弹簧部分,并且根据施加的加速度在Y方向上弹性位移;连接到弹簧部分的可动电极;设置成面对可动电极的固定电极;以及用于 调节弹簧部分的弹簧常数。 弹簧部分具有在Y方向上彼此面对的一对梁,并且弹性变形,使得一对梁之间的间隔变化。 调整电极分别配置在成对梁中的一个的外侧并且在另一个梁的外侧,并且可以通过调节电极施加静电力,使得成对的光束彼此分离。

    Surface acoustic wave device
    6.
    发明申请
    Surface acoustic wave device 有权
    表面声波装置

    公开(公告)号:US20100219910A1

    公开(公告)日:2010-09-02

    申请号:US12659197

    申请日:2010-02-26

    IPC分类号: H03H9/25

    CPC分类号: H03H9/14547

    摘要: A surface acoustic wave device is disclosed. The surface acoustic wave device includes: a substrate having a plane surface; multiple first electrodes formed on the plane surface of the substrate; and multiple second electrodes formed on the plane surface of the substrate. Each of the first and second electrodes has a predetermined closed ring shape. The first and second electrodes are concentric. The second electrodes are located radially inside or radially outside of the first electrodes.

    摘要翻译: 公开了一种表面声波装置。 声表面波装置包括:具有平面的基板; 在基板的平面上形成多个第一电极; 以及形成在基板的平面上的多个第二电极。 第一和第二电极中的每一个具有预定的闭环形状。 第一和第二电极是同心的。 第二电极位于第一电极的径向内侧或径向外侧。

    Capacitance type acceleration sensor
    8.
    发明授权
    Capacitance type acceleration sensor 有权
    电容式加速度传感器

    公开(公告)号:US07107846B2

    公开(公告)日:2006-09-19

    申请号:US11265281

    申请日:2005-11-03

    IPC分类号: G01P15/125

    摘要: A capacitance type acceleration sensor includes a semiconductor substrate, a weight portion supported with the substrate through a spring portion, a movable electrode integrated with the weight portion, and a fixed electrode cantilevered with the substrate. The movable electrode is displaced along with a facing surface of the movable electrode in accordance with acceleration. The facing surface of the movable electrode faces a facing surface of the fixed electrode so as to provide a capacitor. The capacitance of the capacitor changes in accordance with a displacement of the movable electrode so that an outer circuit detects the acceleration as a capacitance change. Each facing surface of the movable and fixed electrodes has a concavity and convexity portion for increasing the capacitance change.

    摘要翻译: 电容型加速度传感器包括半导体基板,通过弹簧部分支撑在基板上的重量部分,与重物部分一体化的可动电极以及与该基板悬臂连接的固定电极。 根据加速度,可移动电极与可动电极的相对表面一起移动。 可动电极的相对表面面对固定电极的相对表面,以提供电容器。 电容器的电容根据可动电极的位移而变化,使得外部电路作为电容变化来检测加速度。 可移动和固定电极的每个相对表面具有用于增加电容变化的凹凸部分。

    Capacitance type acceleration sensor

    公开(公告)号:US07004026B2

    公开(公告)日:2006-02-28

    申请号:US10703461

    申请日:2003-11-10

    IPC分类号: G01P15/125

    摘要: A capacitance type acceleration sensor includes a semiconductor substrate, a weight portion supported with the substrate through a spring portion, a movable electrode integrated with the weight portion, and a fixed electrode cantilevered with the substrate. The movable electrode is displaced along with a facing surface of the movable electrode in accordance with acceleration. The facing surface of the movable electrode faces a facing surface of the fixed electrode so as to provide a capacitor. The capacitance of the capacitor changes in accordance with a displacement of the movable electrode so that an outer circuit detects the acceleration as a capacitance change. Each facing surface of the movable and fixed electrodes has a concavity and convexity portion for increasing the capacitance change.