Process and device for hermetic encapsulation of electronic components
    4.
    发明授权
    Process and device for hermetic encapsulation of electronic components 失效
    电子元件气密封装的工艺和装置

    公开(公告)号:US5461545A

    公开(公告)日:1995-10-24

    申请号:US305424

    申请日:1994-09-13

    Abstract: According to an embodiment of the invention the discrete or integrated electronic components are encapsulated, each in a package, for example a plastic one; the packages are then mounted on a printed circuit board, for example an epoxy one. The components and board as a whole are covered with a relatively thick first layer consisting of an organic compound and ensuring a levelling function, followed by a second layer such as an inorganic metal compound, the function of which is to ensure the hermetic sealing of the whole.

    Abstract translation: 根据本发明的一个实施例,离散或集成的电子部件被封装在每个封装中,例如塑料电子元件; 然后将包装件安装在印刷电路板上,例如环氧树脂。 组件和板整体上覆盖有由有机化合物组成的相对较厚的第一层和确保平整功能,随后是第二层,例如无机金属化合物,其功能是确保气密性 整个。

    Encapsulating case able to resist high external pressures
    7.
    发明授权
    Encapsulating case able to resist high external pressures 失效
    封装外壳能够抵抗外部高压

    公开(公告)号:US4518818A

    公开(公告)日:1985-05-21

    申请号:US557256

    申请日:1984-01-04

    Abstract: An encapsulating case or box for hybrid circuits, able to operate in highly pressurized atmosphere, the components of the hybrid circuit being not subject to the action of pressure. For this purpose, said circuit is enclosed in a case taking the plane of the hybrid circuit substrate as the plane of symmetry, two half-shells made from an electrically insulating rigid material being arranged in symmetrical manner on the two faces of the substrate for creating a zero deformation area within the case. The electrical connections between the hybrid circuit and the connecting pins, outside the case and supported by the substrate are provided by flat metal conductors passing in the gluing plane to the substrate of a half-shell.

    Abstract translation: 用于混合电路的封装盒或盒子,能够在高度加压的气氛中工作,混合电路的部件不受压力的作用。 为此,所述电路被封装在以混合电路衬底的平面为对称面的壳体中,由电绝缘的刚性材料制成的两个半壳以对称的方式布置在衬底的两个面上,用于产生 一个零变形区域内的情况。 混合电路和连接销之间的电连接在壳体外部并由基板支撑,由平坦的金属导体提供,该金属导体在胶合平面中通过半壳的基板。

    Step adjustable attenuator
    8.
    发明授权
    Step adjustable attenuator 失效
    步进可调衰减器

    公开(公告)号:US4216444A

    公开(公告)日:1980-08-05

    申请号:US942195

    申请日:1978-09-14

    CPC classification number: H03H7/24 H01L27/016 H05K1/0286 H05K1/167

    Abstract: A step adjustable attenuator comprising a silicon substrate on one face of which are deposited thin film-type resistors and electrical conductors by which the resistors are interconnected. Contact points are arranged at the periphery of the substrate and connected to the resistors. However, the attenuating sections are not interconnected on the substrate. A conductive pattern prepared from a conductive film forms finger-like leads of which inner portions are bonded to the contact points. By its shape, the pattern ensures the interconnections between the sections and forms two rows of outputs, one for the connections on the printed-circuit board on which is implanted the attenuator and the other being associated with displaceable straps enabling attenuation to be adjusted.

    Abstract translation: 一个阶梯可调衰减器,其包括硅衬底,其一面是沉积的薄膜型电阻器和电导体,电阻器通过该电导体相互连接。 接触点布置在基板的周边并连接到电阻器。 然而,衰减部分不在衬底上互连。 由导电膜制成的导电图案形成指状的引线,其内部部分接合到接触点。 通过其形状,该图案确保了部分之间的互连并形成两排输出,一个用于印刷电路板上的连接,其上植入衰减器,另一个与可移位带相关联,使得能够进行衰减。

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