Multi-layer metal core circuit board laminate with a controlled thermal
coefficient of expansion
    1.
    发明授权
    Multi-layer metal core circuit board laminate with a controlled thermal coefficient of expansion 失效
    多层金属芯电路板层压板具有受控的热膨胀系数

    公开(公告)号:US4496793A

    公开(公告)日:1985-01-29

    申请号:US461061

    申请日:1983-01-26

    摘要: The subject invention relates to a multi-layer circuit board laminate which includes one or more stabilizing metal sheets for reducing the thermal coefficient of expansion of the laminate. In addition, a novel two-step fabrication method is disclosed which permits apertures to be provided in the metal stabilizing layer and prevents the entrapment of air in those apertures as they are filled with epoxy.A multi-layer circuit board laminate is disclosed having a controlled thermal coefficient of expansion which is particularly useful in conjunction with leadless components. The subject invention includes incorporating one or more stabilizing metal sheets into a composite multi-layer circuit board laminate assembly. The stabilizing metal sheets function to significantly reduce the circuit board laminate's thermal coefficient of expansion, thereby enabling the laminate to be used in conjunction with leadless electronic components. In addition, a novel method is disclosed for fabricating one embodiment of the subject invention and includes a unique two-step lamination process which permits apertures to be provided in the metal stabilizing layer and allows the bonding epoxy resin to solidify within the apertures, while simultaneously preventing the entrapment of air. In another embodiment of the subject invention the stabilizing layer is formed of a composite metal-dielectric laminate enabling the layer to be provided with a non-contiguous floating type pattern.

    摘要翻译: 本发明涉及一种多层电路板层压板,其包括用于降低层压板的热膨胀系数的一种或多种稳定金属板。 此外,公开了一种新颖的两步制造方法,其允许在金属稳定层中提供孔,并且防止在它们填充有环氧树脂时在这些孔中捕获空气。 公开了一种具有受控的热膨胀系数的多层电路板层压板,其特别适用于无引线部件。 本发明包括将一种或多种稳定金属片合并到复合多层电路板层叠组件中。 稳定金属片起到显着降低电路板层压板的热膨胀系数的作用,从而能够将层压板与无引线电子部件结合使用。 另外,公开了一种用于制造本发明的一个实施例的新颖方法,并且包括一种独特的两步层压工艺,其允许在金属稳定层中提供孔,并允许粘合环氧树脂在孔内固化,同时 防止空气的夹带。 在本发明的另一个实施方案中,稳定层由复合金属 - 电介质层压体形成,使该层能够提供非连续的浮动型图案。

    Method for making multi-layer metal core circuit board laminate with a
controlled thermal coefficient of expansion
    2.
    发明授权
    Method for making multi-layer metal core circuit board laminate with a controlled thermal coefficient of expansion 失效
    制造具有受控热膨胀系数的多层金属芯电路板层压板的方法

    公开(公告)号:US4522667A

    公开(公告)日:1985-06-11

    申请号:US443275

    申请日:1982-11-22

    摘要: A multi-layer circuit board laminate is disclosed having a controlled thermal coefficient of expansion which is particularly useful in conjunction with leadless components. The subject invention includes incorporating one or more stabilizing metal sheets into a composite multi-layer circuit board laminate assembly. The stabilizing metal sheets function to significantly reduce the circuit board laminate's thermal coefficient of expansion, thereby enabling the laminate to be used in conjunction with leadless electronic components. In addition, a novel method is disclosed for fabricating one embodiment of the subject invention and includes a unique two-step lamination process which permits apertures to be provided in the metal stabilizing layer and allows the bonding epoxy resin to solidify within the apertures, while simultaneously preventing the entrapment of air. In another embodiment of the subject invention the stabilizing layer is formed of a composite metal-dielectric laminate enabling the layer to be provided with a non-contiguous floating type pattern.

    摘要翻译: 公开了一种具有受控的热膨胀系数的多层电路板层压板,其特别适用于无引线部件。 本发明包括将一种或多种稳定金属片合并到复合多层电路板层叠组件中。 稳定金属片起到显着降低电路板层压板的热膨胀系数的作用,从而能够将层压板与无引线电子部件结合使用。 另外,公开了一种用于制造本发明的一个实施例的新颖方法,并且包括一种独特的两步层压工艺,其允许在金属稳定层中提供孔,并允许粘合环氧树脂在孔内固化,同时 防止空气的夹带。 在本发明的另一个实施方案中,稳定层由复合金属 - 电介质层压体形成,使该层能够提供非连续的浮动型图案。

    Capacitive touch switch array
    3.
    发明授权
    Capacitive touch switch array 失效
    电容触摸开关阵列

    公开(公告)号:US4233522A

    公开(公告)日:1980-11-11

    申请号:US956278

    申请日:1978-10-30

    IPC分类号: H03K17/96 H01H35/00

    摘要: A capacitive touch panel comprising an array of touch sensitive switch cells, the panel including relatively small area touch switch elements located on closely spaced centers, that can be of transparent construction particularly suited for use with data processing equipment and electronic displays. Each switch cell includes a first and a second pair of series connected capacitors energized by a common signal source, the array of switch cells being arranged so that the first pair of capacitors are connected in first groups of switch cells, such as rows, to a corresponding first plurality of signal detectors, and the second pair of capacitors are connected in second groups of switch cells, such as columns, to a corresponding second plurality of signal detectors, the junctions of each pair of capacitors of a single switch cell being selectively coupled to ground by the body or other touch capacitive means for actuating a selected switch cell.

    摘要翻译: 一种包括触摸敏感开关单元阵列的电容式触摸面板,该面板包括位于紧密间隔的中心处的相对小的区域触摸开关元件,其可以是特别适用于数据处理设备和电子显示器的透明结构。 每个开关单元包括由公共信号源激励的第一对和第二对串联电容器,开关单元阵列被布置成使得第一对电容器连接在第一组开关单元(例如行)中,以连接到 对应的第一多个信号检测器,并且第二对电容器在第二组开关单元(例如列)中连接到相应的第二多个信号检测器,单个开关单元的每对电容器的结被选择性地耦合 通过身体或其他触摸电容装置接地,用于致动所选择的开关单元。