METAL-CLAD PHENOLIC RESIN LAMINATE
    61.
    发明申请
    METAL-CLAD PHENOLIC RESIN LAMINATE 有权
    金属 - 酚醛树脂层压板

    公开(公告)号:US20110183564A1

    公开(公告)日:2011-07-28

    申请号:US13121867

    申请日:2009-09-28

    Applicant: Masao Uesaka

    Inventor: Masao Uesaka

    Abstract: The object of the present invention is to provide a metal-clad phenolic resin laminate having a combination of machine properties, electrical properties and tracking resistance. A metal-clad phenolic resin laminate obtained by heating and pressing a lamination which comprises: (i) a central layered portion comprising one paper base prepreg which is made of a paper base impregnated with a first phenolic resin composition containing a resol-based resin, or a predetermined number of the paper base prepregs laid on each other; (ii) outer layered portions laid on an upper and a lower sides of the central layered portion, in which each of the outer layered portions comprises one glass fiber substrate prepreg which is made of a glass fiber substrate impregnated with a second phenolic resin composition containing a resol-based resin, or a predetermined number of the glass fiber substrate prepregs laid on each other; and (iii) a metal foil laid at least on one of the outer layered portions laid on the upper and lower sides of the central layered portion.

    Abstract translation: 本发明的目的是提供一种具有机械性能,电性能和耐追踪性的组合的包覆金属的酚醛树脂层压板。 一种通过加热和压制叠层体而获得的包覆金属的酚醛树脂层压体,其包括:(i)中央层叠部分,其包含一个纸基预浸料,该纸基预浸料由浸渍有含有甲阶酚醛树脂树脂的第一酚醛树脂组合物的纸基制成, 或相互放置的预定数量的纸基预浸料坯; (ii)放置在中央层叠部的上侧和下侧的外层叠部分,其中每个外层层部分包括一个玻璃纤维基材预浸料,其由浸渍有第二酚醛树脂组合物的玻璃纤维基材制成,所述第二酚醛树脂组合物含有 或者预定数量的玻璃纤维基材预浸料, 和(iii)铺置在中央层叠部的上侧和下侧的至少一个外部层叠部分上的金属箔。

    Method for drilling circuit boards
    70.
    发明授权
    Method for drilling circuit boards 失效
    电路板钻孔方法

    公开(公告)号:US4311419A

    公开(公告)日:1982-01-19

    申请号:US61594

    申请日:1979-07-30

    Applicant: James P. Block

    Inventor: James P. Block

    Abstract: An entry material for use in drilling circuit boards to avoid marring of such boards comprises a wood pulp-glass composite substrate having aluminum foil bonded to the opposite surfaces thereof. This entry material is relatively economical and has a stiffness sufficient to avoid upward bending or "oil canning" when pressure feet spaced from the drill are employed to hold the workpiece during drilling and further has enough strength to withstand high torsional drill forces with drills operating for high rates of material removal. The double layers of foil separated by the low heat conductive substrate material affords a pair of heat sinks which more effectively can carry away heat from the drill.

    Abstract translation: 用于钻孔电路板以避免这种板的损坏的入口材料包括具有与其相对表面结合的铝箔的木浆玻璃复合基板。 该进入材料相对经济,并且具有足够的刚度,以在钻头间隔开压力脚以在钻孔期间保持工件时进一步避免向上弯曲或“油罐头”,并且还具有足够的强度以承受高的扭转钻力, 高速率的材料去除。 由低热传导基材材料分离的双层箔片提供了一对更有效地从钻头携带热量的散热器。

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