ELECTROMECHANICAL TRANSDUCER AND METHOD OF PRODUCING THE SAME

    公开(公告)号:US20170333945A1

    公开(公告)日:2017-11-23

    申请号:US15660813

    申请日:2017-07-26

    IPC分类号: B06B1/02

    CPC分类号: B06B1/0292

    摘要: A method of producing an electromechanical transducer includes forming an insulating film on a first electrode, forming a sacrificial layer on the insulating film, forming a first membrane on the sacrificial layer, forming a second electrode on the first membrane, forming an etching-hole in the first membrane and removing the sacrificial layer through the etching-hole, and forming a second membrane on the second electrode, and sealing the etching-hole. Forming the second membrane and sealing the etching-hole are performed in one operation.

    SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE

    公开(公告)号:US20220415960A1

    公开(公告)日:2022-12-29

    申请号:US17840926

    申请日:2022-06-15

    IPC分类号: H01L27/146

    摘要: A disclosed method of manufacturing a semiconductor device includes singulating a bonded substrate including a first substrate provided with an interconnection structure layer and a first bonding layer and a second substrate provided with a second bonding layer opposed to the first bonding layer into a plurality of semiconductor devices. The bonded substrate includes functional element regions and a scribe region in a plan view. The singulating includes forming a groove in the scribe region, and cutting the bonded substrate in a region outside an inner side surface of the groove. The groove is formed penetrating one of the first substrate and the second substrate, the interconnection structure layer, and the first and second bonding layers. The groove extends from the one of the first substrate and the second substrate to a position deeper than all interconnection layers provided between the first and second substrates.

    CAPACITIVE TRANSDUCER AND METHOD OF MANUFACTURING THE SAME, AND OBJECT INFORMATION ACQUIRING APPARATUS
    10.
    发明申请
    CAPACITIVE TRANSDUCER AND METHOD OF MANUFACTURING THE SAME, AND OBJECT INFORMATION ACQUIRING APPARATUS 审中-公开
    电容式传感器及其制造方法以及获取装置的对象信息

    公开(公告)号:US20160091344A1

    公开(公告)日:2016-03-31

    申请号:US14890718

    申请日:2014-05-29

    IPC分类号: G01D5/24 G01N29/24

    摘要: Provided is a capacitive transducer with improved reliability of sealing. The capacitive transducer includes a cell and a sealing portion. The cell includes a first electrode and a vibrating membrane having a second electrode formed to oppose the first electrode through intermediation of a cavity. An etching opening portion is formed to form the cavity by sacrifice layer etching. The sealing portion seals the etching opening portion. A gap at a periphery of the sealing portion has a height smaller than that of the cavity. In a manufacturing method therefor, in a step of forming a sacrifice layer for forming the cavity and the gap communicating to the cavity via an etching flow path, a height of the sacrifice layer in a region that is to become the gap is set to be smaller than that of the sacrifice layer in a region that is to become the cavity.

    摘要翻译: 提供了具有改进的密封可靠性的电容式换能器。 电容换能器包括电池和密封部分。 电池包括第一电极和振动膜,其具有通过腔体通过形成为与第一电极相对的第二电极。 通过牺牲层蚀刻形成蚀刻开口部分以形成空腔。 密封部密封蚀刻开口部。 密封部分的周边处的间隙的高度小于空腔的高度。 在其制造方法中,在形成用于形成空腔的牺牲层和经由蚀刻流路连通到空腔的间隙的步骤中,将要成为间隙的区域中的牺牲层的高度设定为 小于要成为空腔的区域中的牺牲层的尺寸。