发明名称 Printed wiring board having blind holes
摘要 The present invention relates to a printed wiring board and a method of manufacturing a printed wiring board. A first printed wiring board and a second printed wiring board, each including an insulating layer and a copper foil layer, are superposed on one another with a middle insulating layer therebetween with blind holes formed in the insulating layers of the boards to oppose one another, through-holes are formed and provided with conductive plating to electrically connect the copper foil layers with each other, and reflow pads are formed by etching in the copper foil layers to seal the blind holes. The blind holes are formed through the insulating layers and reach the copper foil layers. Plated layers are plated on the surfaces of the printed wiring boards on the sides thereof where the blind holes are formed to electrically connect the blind holes and the copper foil layers, respectively.
申请公布号 US5315072(A) 申请公布日期 1994.05.24
申请号 US19920827708 申请日期 1992.01.27
申请人 HITACHI SEIKO, LTD. 发明人 ARAI, KUNIO;KANAYA, YASUHIKO
分类号 H05K1/11;H05K3/00;H05K3/46;(IPC1-7):H05K1/00 主分类号 H05K1/11
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