Analog data-input device provided with a microelectromechanical pressure sensor
    11.
    发明公开

    公开(公告)号:EP1707931A1

    公开(公告)日:2006-10-04

    申请号:EP05425183.0

    申请日:2005-03-31

    Abstract: In a data-input device (4) an actuator element (6) that can be manually actuated, and a sensor (9) mechanically coupled to the actuator element (6). The sensor (9) is formed in a body (10) of semiconductor material housing a first sensitive element (11), which detects the actuation of the actuator element (6) and generates electrical control signals. The first sensitive element (11) is a microelectromechanical pressure sensor, formed by: a cavity (24) made within the body (10); a diaphragm (25) made in a surface portion of the body (10) and suspended above the cavity (24); and piezoresistive transducer elements (26) integrated in peripheral surface portions of the diaphragm (25) in order to detect its deformations upon actuation of the actuator element (6).

    Abstract translation: 在数据输入装置(4)中,可以手动致动的致动器元件(6)和机械地联接到致动器元件(6)的传感器(9)。 传感器(9)形成在容纳有第一敏感元件(11)的半导体材料的本体(10)中,该第一敏感元件(11)检测致动元件(6)的致动并产生电控制信号。 第一敏感元件(11)是微机电压力传感器,其通过:在主体(10)内制成的空腔(24)形成。 在所述主体(10)的表面部分中形成并悬浮在所述空腔(24)上方的隔膜(25); 以及压电换能器元件(26),其集成在隔膜(25)的外周表面部分中,以便在致动元件(6)致动时检测其变形。

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