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发明公开
CN101583489A 绝缘树脂片层叠体、层叠该绝缘树脂片层叠体而成的多层印刷布线板 无效 - 驳回 复审申请

绝缘树脂片层叠体、层叠该绝缘树脂片层叠体而成的多层印刷布线板
摘要：
本发明的课题是提供一种在膜或金属箔上形成绝缘树脂层的工序中不产生凹陷或斑点的绝缘树脂层的厚度均匀的绝缘树脂片层叠体(带膜或金属箔的绝缘树脂片)和提供一种通过上述绝缘树脂片层叠体形成的绝缘可靠性优异的多层印刷布线板。为此，本发明提供了一种绝缘树脂片层叠体(带膜或金属箔的绝缘树脂片)，其是通过在膜或金属箔上形成由树脂组合物构成的绝缘树脂层而形成，其特征在于，树脂组合物含有丙烯酸系表面活性剂。
摘要（英）：

Disclosed is an insulating resin sheet multilayer body (insulating resin sheet with film or metal foil) having an insulating resin layer of a uniform thickness. This insulating resin sheet multilayer body does not suffer from repelling or unevenness during the step for forming an insulating resin layer on a film or a metal foil. Also disclosed is a multilayer printed wiring board which is composed of such an insulating resin sheet multilayer body and excellent in insulation reliability. Specifically disclosed is an insulating resin sheet multilayer body (insulating resin sheet with film or metal foil) which is obtained by forming an insulating resin layer composed of a resin composition on a film or a metal foil. This insulating resin sheet multilayer body is characterized in that the resin composition contains an acrylic surfactant.

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