发明名称 Bondable via
摘要 A method is disclosed for providing less critical alignment of vias and through holes and lower bonding stresses in the manufacture of high density circuit boards. In the invention, a via is drilled through a land which is in a plane separate from that of the signal plane.
申请公布号 US5142775(A) 申请公布日期 1992.09.01
申请号 US19900605594 申请日期 1990.10.30
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 WILEY, JOHN P.
分类号 H05K3/00;H05K3/42;H05K3/44;H05K3/46 主分类号 H05K3/00
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