Insulating adhesive for multilayer printed circuit board
    43.
    发明授权
    Insulating adhesive for multilayer printed circuit board 失效
    绝缘胶多层印刷电路板

    公开(公告)号:US5976699A

    公开(公告)日:1999-11-02

    申请号:US728800

    申请日:1996-10-10

    Abstract: An insulating adhesive for a multilayer printed circuit board, which is to be laminated to an internal layer circuit board coated with an undercoating agent comprising an epoxy resin and a curing agent therefor, and which comprises as essential components:(a) a bisphenol type epoxy resin or phenoxy resin having a weight average molecular weight of at least 10,000,(b) a bisphenol type epoxy resin having an epoxy equivalent of not more than 500, and(c) an epoxy resin curing agent, said insulating adhesive being excellent in storage stability in the form of a varnish or as coated on a copper foil, and when coated on an internal layer circuit board coated with an undercoating agent, being able to be well integrally cured with the undercoating agent.

    Abstract translation: 一种用于多层印刷电路板的绝缘粘合剂,其将被层压到涂覆有包含环氧树脂及其固化剂的底涂剂的内层电路板,并且其包含作为必要组分的组分:(a)双酚型环氧树脂 重均分子量为10000以上的树脂或苯氧基树脂,(b)环氧当量不大于500的双酚型环氧树脂和(c)环氧树脂固化剂,所述绝缘胶粘剂的储存性优异 以清漆的形式的稳定性或涂覆在铜箔上,并且当涂覆在涂有底涂剂的内层电路板上时,能够与底涂剂一体地固化。

    Process for producing multilayer printed circuit board
    46.
    发明授权
    Process for producing multilayer printed circuit board 失效
    多层印刷电路板生产工艺

    公开(公告)号:US5806177A

    公开(公告)日:1998-09-15

    申请号:US740186

    申请日:1996-10-28

    Abstract: A process for producing a multilayer printed circuit board which comprises coating a light and heat curable undercoating agent on an internal layer circuit board, irradiating the undercoating agent with active energy beams to make the same tack-free, then laminating thereto a metal foil having an insulating adhesive layer and subsequently heating the resulting assembly to integrally cure the same. When the undercoating agent is coated on an internal layer circuit board and irradiated with a light to be made tack-free, and thereto is laminated a copper foil having a thermosetting insulating adhesive by a rigid roll or the like, the undercoating agent is softened or fluidized and the surface is smoothened. When the resulting laminate is thereafter heated, the undercoating agent coated on the internal layer circuit board and the insulating adhesive coated on the copper foil are integrally cured. Since the insulating adhesive coated on the metal foil keeps the thickness, a multilayer printed circuit board having an excellent board thickness precision can be produced without depending on the percentage of the remaining copper foil in the internal layer.

    Abstract translation: 一种多层印刷电路板的制造方法,其特征在于,在内层电路基板上涂布光固化性可热固化的底涂剂,用活性能量射线照射底涂剂,制成相同的无粘性, 绝缘粘合剂层,随后加热所得组件以使其一体地固化。 当将底涂剂涂覆在内层电路板上并用无粘性的光照射时,通过刚性辊等层压具有热固性绝缘粘合剂的铜箔时,底涂剂软化或 流化并使表面平滑。 然后加热所得的层压体后,涂覆在内层电路板上的底涂剂和涂在铜箔上的绝缘胶粘剂整体固化。 由于涂覆在金属箔上的绝缘粘合剂保持厚度,所以可以制造出具有优异的板厚精度的多层印刷电路板,而不依赖于内层中剩余的铜箔的百分比。

    Adhesive for copper foils and adhesive-backed copper foil
    48.
    发明授权
    Adhesive for copper foils and adhesive-backed copper foil 失效
    用于铜箔和粘合剂背衬铜箔的粘合剂

    公开(公告)号:US5707729A

    公开(公告)日:1998-01-13

    申请号:US524802

    申请日:1995-09-07

    Applicant: Tetsuro Satoh

    Inventor: Tetsuro Satoh

    Abstract: An adhesive composition and foils coated with the adhesive, wherein the adhesive consisting essentially of: (I) a fist amount of a non-modified epoxy resin and a second amount of a rubber-modified epoxy resin in a total amount of 60-100 parts by weight, wherein the amount of rubber-modified epoxy resin is 0.5 to 20 parts by weight; (II) 5-30 parts by weight of a polyvinyl acetal resin; and optionally contains (III) at least one resin selected rom the group consisting of blocked isocyanate resins, polyester resins, polyester resins, melamine resins and urethane resins. The adhesive coating can optionally contain inorganic fillers, fire retardants, and curing agents.

    Abstract translation: 粘合剂组合物和涂有粘合剂的箔,其中粘合剂基本上由以下组成:(I)第一量的未改性环氧树脂和第二量橡胶改性环氧树脂,总量为60-100份 ,其中橡胶改性环氧树脂的量为0.5-20重量份; (II)5-30重量份的聚乙烯醇缩醛树脂; 并且任选地含有(III)选自由封端异氰酸酯树脂,聚酯树脂,聚酯树脂,三聚氰胺树脂和聚氨酯树脂组成的组中的至少一种树脂。 粘合剂涂层可以任选地含有无机填料,阻燃剂和固化剂。

    Method for making multilayer printed circuit board having blind holes
and resin-coated copper foil used for the method
    50.
    发明授权
    Method for making multilayer printed circuit board having blind holes and resin-coated copper foil used for the method 失效
    制造具有盲孔的多层印刷电路板和用于该方法的树脂涂覆铜箔的方法

    公开(公告)号:US5544773A

    公开(公告)日:1996-08-13

    申请号:US252928

    申请日:1994-06-02

    Abstract: Provided is a method for making a multilayer printed circuit board having blind holes which comprises heat laminating a copper foil and an inner layer panel previously provided with circuit patterns on one or both sides thereof by processing a copper-clad laminate, a resin layer soluble in an aqueous alkali solution and having a flowability upon heating being present between said copper foil and said inner layer panel, forming via holes in the surface copper foil by etching and then dissolving the resin layer under said via holes with an aqueous alkali solution and removing the resin layer, thereby to form blind holes in which the copper foil on the inner layer panel is exposed. Further provided is a copper foil used for making multilayer printed circuit boards, which is provided with a resin layer soluble in an aqueous alkali solution and having flowability upon heating on its roughened surface.

    Abstract translation: 提供一种制造具有盲孔的多层印刷电路板的方法,该方法包括通过加工覆铜层压板将铜箔和预先在其一侧或两侧预先设置有电路图案的内层面板热层压,可溶于 在所述铜箔和所述内层板之间存在加热流动性的碱性水溶液,通过蚀刻在所述表面铜箔中形成通孔,然后用碱水溶液将所述树脂层溶解在所述通孔下方,并除去 从而形成露出内层面板上的铜箔的盲孔。 还提供了一种用于制造多层印刷电路板的铜箔,其具有可溶于碱性水溶液的树脂层,并且在其粗糙化表面上加热时具有流动性。

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