Low cost highly isolated RF coupler

    公开(公告)号:US07109830B2

    公开(公告)日:2006-09-19

    申请号:US10227687

    申请日:2002-08-26

    CPC classification number: H01P5/185 H05K1/0218 H05K1/144

    Abstract: Methods of assembling a coupler are provided in which a first printed circuit board is provided, and a second printed circuit board is then surface mounted on the first printed circuit board. The first printed circuit board and the second printed circuit board are then electrically and mechanically connected to provide a coupler having a shielded region defined between the first printed circuit board and the second printed circuit board. The shielded region at least partly surrounds a coupler circuit disposed therein.

    Low cost hermetic sealed microwave module packaging
    4.
    发明授权
    Low cost hermetic sealed microwave module packaging 失效
    低成本密封微波模块包装封装

    公开(公告)号:US6028007A

    公开(公告)日:2000-02-22

    申请号:US274832

    申请日:1999-03-23

    CPC classification number: H01L23/66 H01P1/08 H01L2924/0002 Y10T29/49016

    Abstract: The invention relates to a method for producing low cost hermetic Integrated Module Assembly (IMA) packaging, where an aluminum coating (24) is deposited on a poly-tetrafluoral-ethaline substrate (20), the aluminum coating (24) is selectively etched to form a waveguide window (26) and the substrate (20) is selectively treated over the waveguide window (26) to produce a non-conductive hermetic seal. The substrate (20) is then joined to a metal carrier (28) containing the waveguide (30). As a result of using selectively treated low cost substrates to produce hermetic seals, more expensive substrates are not required to form hermetic seals over substrate to waveguide interconnections.

    Abstract translation: 本发明涉及一种用于生产低成本密封的集成模块装配(IMA)封装的方法,其中铝涂层(24)沉积在聚四氟乙基底(20)上,铝涂层(24)被选择性地蚀刻到 形成波导窗口(26),并且在波导窗口(26)上选择性地处理衬底(20)以产生非导电气密封。 然后将基板(20)接合到包含波导管(30)的金属载体(28)上。 作为使用选择性处理的低成本基底以产生气密密封的结果,不需要更昂贵的基底以在基底与波导互连之间形成气密密封。

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