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    • 1. 发明授权
    • Process for producing multilayer printed wiring board
    • 多层印刷线路板的制造方法
    • US08584352B2
    • 2013-11-19
    • US12869926
    • 2010-08-27
    • Hirohisa NarahashiShigeo NakamuraTadahiko Yokota
    • Hirohisa NarahashiShigeo NakamuraTadahiko Yokota
    • H05K3/02
    • H05K3/4661H05K3/0035H05K3/0038H05K3/025H05K3/181H05K3/381H05K2203/1152
    • Multilayer printed wiring boards superior in formation of an ultrafine wiring, which can form a conductive layer superior in peel strength on a flat insulating layer surface, can be prepared by a method including the following steps (A)-(E): (A) a step of laminating a film with a metal film, wherein a metal film layer is formed on a support layer, on an internal-layer circuit substrate via a curable resin composition layer, or laminating an adhesive film with a metal film, wherein a curable resin composition layer is formed on a metal film layer of the film with a metal film, on an internal-layer circuit substrate; (B) a step of curing a curable resin composition layer to form an insulating layer; (C) a step of removing a support layer; (D) a step of removing a metal film layer; and (E) a step of forming a metal film layer on an insulating layer surface by electroless plating.
    • 可以通过包括以下步骤(A) - (E)的方法制备能形成在平坦绝缘层表面上的剥离强度优异的导电层的超细布线形成的多层印刷电路板:(A) 通过固化性树脂组合物层在内层电路基板上形成金属膜的金属膜,其中在支撑层上形成金属膜层,或者用金属膜层压粘合膜的步骤,其中可固化 在金属膜的金属膜层上在内层电路基板上形成树脂组合物层; (B)固化树脂组合物层以固化以形成绝缘层的步骤; (C)去除支撑层的步骤; (D)除去金属膜层的工序; 和(E)通过化学镀在绝缘层表面上形成金属膜层的步骤。
    • 4. 发明申请
    • PROCESS FOR PRODUCING CIRCUIT BOARD
    • 生产电路板的工艺
    • US20100044078A1
    • 2010-02-25
    • US12551802
    • 2009-09-01
    • Hirohisa NarahashiShigeo NakamuraTadahiko Yokota
    • Hirohisa NarahashiShigeo NakamuraTadahiko Yokota
    • H05K1/00B32B37/00B32B33/00
    • H05K3/025B32B37/025B32B38/10B32B2038/0076B32B2311/00B32B2457/08H05K3/386H05K2201/0358H05K2203/0264H05K2203/0769H05K2203/0786Y10T428/14Y10T428/1438Y10T428/1443Y10T428/1476Y10T428/26Y10T428/263Y10T428/264Y10T428/265Y10T428/266Y10T428/269
    • Producing a circuit board, by laminating, on a substrate, an adhesive film with a metal film, which comprises a water-soluble polymer release layer, a metal film layer and a curable resin composition layer, which are formed in this order on a support layer, and has a release property enabling detachment of said water-soluble polymer release layer from the support layer after curing of the curable resin composition layer, such that the curable resin composition layer contacts the substrate; curing the curable resin composition layer; detaching the support layer, and removing the water-soluble polymer release layer present on the metal film layer by dissolving the release layer in an aqueous solution, efficiently forms an insulating layer and a metal film layer superior in adhesiveness to the insulating layer and in uniformity. By this method, a metal film layer having high adhesiveness and high property uniformity can be formed on the surface without the need for roughening the surface of an insulating layer with an oxidant such as alkaline potassium permanganate solution and the like. Thus, etching for circuit formation can be performed under milder conditions, which in turn provides a superior effect on micro wiring on circuit boards such as multi-layer printed wiring boards, flexible printed wiring boards, and the like.
    • 通过在基板上层叠具有金属膜的粘合膜来制造电路板,所述金属膜包括依次形成在支撑体上的水溶性聚合物剥离层,金属膜层和固化性树脂组合物层 并且具有能够使固化性树脂组合物层固化后使所述水溶性高分子脱离层从支撑层脱离的脱模性,使得固化性树脂组合物层与基材接触; 固化树脂组合物层; 通过将剥离层溶解在水溶液中,分离保护层,除去存在于金属膜层上的水溶性聚合物释放层,有效地形成绝缘层和与绝缘层的粘合性优异的金属膜层,均匀性 。 通过这种方法,可以在表面上形成具有高粘合性和高性能均匀性的金属膜层,而不需要用氧化剂如碱式高锰酸钾溶液等来粗糙化绝缘层的表面。 因此,可以在更温和的条件下进行电路形成蚀刻,这又对诸如多层印刷线路板,柔性印刷线路板等的电路板上的微接线提供了优异的效果。