发明名称 PRINTED CIRCUIT BOARD AND METHOD OF PRODUCING THE SAME
摘要 The portion of a board corresponding to the surrounding portion of a hole 4 formed through the board is arranged to include a patternless section 6 where a conductive film 5 is not provided.
申请公布号 US2010051321(A1) 申请公布日期 2010.03.04
申请号 US20070312918 申请日期 2007.09.14
申请人 MURAKAMI MASASHI;FUNAE KAZUHITO 发明人 MURAKAMI MASASHI;FUNAE KAZUHITO
分类号 H05K1/00;H05K3/00 主分类号 H05K1/00
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