ELEKTRONISCHES BAUELEMENT, INSBESONDERE MIT AKUSTISCHEN OBERFLÄCHENWELLEN ARBEITENDES BAUELEMENT - OFW-BAUELEMENT
    1.
    发明授权
    ELEKTRONISCHES BAUELEMENT, INSBESONDERE MIT AKUSTISCHEN OBERFLÄCHENWELLEN ARBEITENDES BAUELEMENT - OFW-BAUELEMENT 有权
    电子元件,特别是弹性表面波工作相关的部分 - SAW COMPONENT

    公开(公告)号:EP1057258B1

    公开(公告)日:2002-10-30

    申请号:EP99915480.0

    申请日:1999-02-16

    Applicant: EPCOS AG

    Abstract: The invention relates to an OFW component working with acoustic surface waves. Said component comprises a chip (1), a piezoelectric substrate (1a), electrically conductive structures (2, 3, 4) arranged on the substrate and a base plate (15) with external electrical connections lines which are in contact with the electrical conductive structures of the chip (1). A protective film (5, 6) is applied on the surface of the chip supporting the electrically conductive structures (2, 3, 4), which has electrical contact elements (7, 11) on the surface opposite to their piezoelectric substrate (1a). Said elements are connected directly to the structures (2, 3, 4) of the chip (1) by through contacts (8) in the protective film (5, 6) and/or through bumps (10) and to the electrical connection elements of the base plate (15) using SMT technology.

    ELEKTRONISCHES BAUELEMENT, INSBESONDERE MIT AKUSTISCHEN OBERFLÄCHENWELLEN ARBEITENDES BAUELEMENT - OFW-BAUELEMENT
    4.
    发明公开
    ELEKTRONISCHES BAUELEMENT, INSBESONDERE MIT AKUSTISCHEN OBERFLÄCHENWELLEN ARBEITENDES BAUELEMENT - OFW-BAUELEMENT 有权
    电子元件,特别是弹性表面波工作相关的部分 - SAW COMPONENT

    公开(公告)号:EP1057258A1

    公开(公告)日:2000-12-06

    申请号:EP99915480.0

    申请日:1999-02-16

    Applicant: EPCOS AG

    Abstract: The invention relates to an OFW component working with acoustic surface waves. Said component comprises a chip (1), a piezoelectric substrate (1a), electrically conductive structures (2, 3, 4) arranged on the substrate and a base plate (15) with external electrical connections lines which are in contact with the electrical conductive structures of the chip (1). A protective film (5, 6) is applied on the surface of the chip supporting the electrically conductive structures (2, 3, 4), which has electrical contact elements (7, 11) on the surface opposite to their piezoelectric substrate (1a). Said elements are connected directly to the structures (2, 3, 4) of the chip (1) by through contacts (8) in the protective film (5, 6) and/or through bumps (10) and to the electrical connection elements of the base plate (15) using SMT technology.

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