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    MULTILAYER PRINTED WIRING BOARD WITH FILLED VIAHOLE STRUCTURE
    21.
    发明申请
    MULTILAYER PRINTED WIRING BOARD WITH FILLED VIAHOLE STRUCTURE 有权
    多层印刷线路板，具有填充的结构

    公开(公告)号：US20100101852A1

    公开(公告)日：2010-04-29

    申请号：US12646517

    申请日：2009-12-23

    申请人： Seiji Shirai ,  Kenichi Shimada ,  Motoo Asai

    发明人： Seiji Shirai ,  Kenichi Shimada ,  Motoo Asai

    IPC分类号： H05K1/11

    CPC分类号： H05K3/4661 ,  H05K3/108 ,  H05K3/381 ,  H05K3/382 ,  H05K3/421 ,  H05K3/423 ,  H05K2201/0129 ,  H05K2201/015 ,  H05K2201/0278 ,  H05K2201/09563 ,  H05K2201/096 ,  H05K2201/09745 ,  Y10T428/24273 ,  Y10T428/24322 ,  Y10T428/24917 ,  Y10T428/31681

    摘要： The present invention provides a multilayer printed wiring board having a filled viahole structure advantageously usable for forming a fine circuit pattern thereon, and having an excellent resistance against cracking under a thermal shock or due to heat cycle. The multilayer printed wiring board is comprised of conductor circuitry layers and interlaminar insulative resin layers deposited alternately one on another, the interlaminar insulative resin layers each having formed through them holes each filled with a plating layer to form a viahole. The surface of the plating layer exposed out of the hole for the viahole is formed substantially flat and lies at a substantially same level as the surface of the conductor circuit disposed in the interlaminar insulative resin layer. The thickness of the conductor circuitry layer is less than a half of the viahole diameter and less than 25 μm. The inner wall of the hole formed in the interlaminar insulative resin layer is roughened and an electroless plating layer is deposited on the roughened surface. An electroplating layer is filled in the hole including the electroless plating layer to form the viahole. The interlaminar insulative resin layer is formed from a composite of a fluororesin showing a high fracture toughness and a heat-resistant thermoplastic resin, a composite of fluororesin and thermosetting resin or a composite of thermosetting and thermoplastic resins.

    摘要翻译： 本发明提供了一种多层印刷线路板，其具有有利地用于在其上形成精细电路图案的填充通孔结构，并且在热冲击下或由于热循环具有优异的抗开裂性。 多层印刷布线板由交替地彼此堆叠的导体电路层和层间绝缘树脂层构成，层间绝缘树脂层各自形成有各自填充有镀层的孔，以形成通孔。 露出用于通孔的孔的镀层的表面形成为基本上平坦，并且位于与布置在层间绝缘树脂层中的导体电路的表面基本相同的水平。 导体电路层的厚度小于通孔直径的一半，小于25μm。 形成在层间绝缘树脂层中的孔的内壁变粗糙，并且在粗糙化表面上沉积化学镀层。 在包括无电镀层的孔中填充电镀层以形成通孔。 层间绝缘树脂层由显示高断裂韧性的氟树脂和耐热性热塑性树脂，氟树脂和热固性树脂的复合物或热固性和热塑性树脂的复合材料的复合材料形成。

    Multilayer printed wiring board with filled viahole structure
    25.
    发明授权
    Multilayer printed wiring board with filled viahole structure 有权
    多层印刷线路板，带有通孔结构

    公开(公告)号：US07622183B2

    公开(公告)日：2009-11-24

    申请号：US11385904

    申请日：2006-03-22

    申请人： Seiji Shirai ,  Kenichi Shimada ,  Motoo Asai

    发明人： Seiji Shirai ,  Kenichi Shimada ,  Motoo Asai

    IPC分类号： B32B3/00

    CPC分类号： H05K3/4661 ,  H05K3/108 ,  H05K3/381 ,  H05K3/382 ,  H05K3/421 ,  H05K3/423 ,  H05K2201/0129 ,  H05K2201/015 ,  H05K2201/0278 ,  H05K2201/09563 ,  H05K2201/096 ,  H05K2201/09745 ,  Y10T428/24273 ,  Y10T428/24322 ,  Y10T428/24917 ,  Y10T428/31681

    摘要： The present invention provides a multilayer printed wiring board having a filled viahole structure advantageously usable for forming a fine circuit pattern thereon, and having an excellent resistance against cracking under a thermal shock or due to heat cycle. The multilayer printed wiring board is comprised of conductor circuitry layers and interlaminar insulative resin layers deposited alternately one on another, the interlaminar insulative resin layers each having formed through them holes each filled with a plating layer to form a viahole. The surface of the plating layer exposed out of the hole for the viahole is formed substantially flat and lies at a substantially same level as the surface of the conductor circuit disposed in the interlaminar insulative resin layer. The thickness of the conductor circuitry layer is less than a half of the viahole diameter and less than 25 μm. The inner wall of the hole formed in the interlaminar insulative resin layer is roughened and an electroless plating layer is deposited on the roughened surface. An electroplating layer is filled in the hole including the electroless plating layer to form the viahole. The interlaminar insulative resin layer is formed from a composite of a fluororesin showing a high fracture toughness and a heat-resistant thermoplastic resin, a composite of fluororesin and thermosetting resin or a composite of thermosetting and thermoplastic resins.

    摘要翻译： 本发明提供了一种多层印刷线路板，其具有有利地用于在其上形成精细电路图案的填充通孔结构，并且在热冲击下或由于热循环具有优异的抗开裂性。 多层印刷布线板由交替地彼此堆叠的导体电路层和层间绝缘树脂层构成，层间绝缘树脂层各自形成有各自填充有镀层的孔，以形成通孔。 露出用于通孔的孔的镀层的表面形成为基本上平坦，并且位于与布置在层间绝缘树脂层中的导体电路的表面基本相同的水平。 导体电路层的厚度小于通孔直径的一半，小于25μm。 形成在层间绝缘树脂层中的孔的内壁变粗糙，并且在粗糙化表面上沉积化学镀层。 在包括无电镀层的孔中填充电镀层以形成通孔。 层间绝缘树脂层由显示高断裂韧性的氟树脂和耐热性热塑性树脂，氟树脂和热固性树脂的复合物或热固性和热塑性树脂的复合材料的复合材料形成。