CRYSTAL VIBRATION DEVICE
    2.
    发明公开
    CRYSTAL VIBRATION DEVICE 有权
    晶体谐振器

    公开(公告)号:EP1187323A4

    公开(公告)日:2005-04-06

    申请号:EP01908254

    申请日:2001-03-02

    Applicant: DAISHINKU CORP

    CPC classification number: H03H9/0509 H03H9/0519 H03H9/131

    Abstract: A crystal vibration device comprising a crystal diaphragm formed on the opposite main surfaces thereof with exciting electrodes and extraction electrodes extracted from respective exciting electrodes, and an electrode pad formed on a base and electrically connected with the crystal diaphragm via a silicon-based conductive adhesive. Each of at least extraction electrodes, out of the exciting electrodes and the extraction electrodes, comprises a Cr film layer, an Au film layer, and a Cr thin film layer or an Ag thin film layer sequentially laminated on the crystal diaphragm. The electrode pad comprises a tungsten- or molybdenum-made metallized layer, a Ni film layer and an Au film layer sequentially laminated on the base, and at least a specified region, to which a silicon conductive adhesive is applied, in the Au film layer of the electrode pad is diffused with Ni in the Ni film layer.

    PIEZOELECTRIC OSCILLATION DEVICE
    3.
    发明公开
    PIEZOELECTRIC OSCILLATION DEVICE 审中-公开
    压电振动

    公开(公告)号:EP3086471A4

    公开(公告)日:2017-04-12

    申请号:EP14870753

    申请日:2014-12-04

    Applicant: DAISHINKU CORP

    Abstract: A piezoelectric resonator device having a sandwich structure is provided, which can avoid gas generation and reduce the size or height. A crystal resonator 101 includes a crystal resonator plate 2, a first sealing member 3 and a second sealing member 4. A sealing-member-side first bonding pattern 321 and a sealing-member-side second bonding pattern 421, both to be bonded to the crystal resonator plate 2, are formed respectively on the first sealing member 3 and the second sealing member 4. On the crystal resonator plate 2, a resonator-plate-side first bonding pattern 251 to be bonded to the first sealing member 3 is formed on a first main surface 211 and a resonator-plate-side second bonding pattern 252 to be bonded to the second sealing member 4 is formed on a second main surface 212. The sealing-member-side first bonding pattern 321 is bonded to the resonator-plate-side first bonding pattern 251, and the sealing-member-side second bonding pattern 421 is bonded to the resonator-plate-side second bonding pattern 252, both by diffusion bonding.

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