发明名称 Printed wiring board and printed wiring board manufacturing method
摘要 The present invention relates to a printed wiring board (110) having solder bumps (76U) forming a BGA. The solder bumps are disposed on conductor circuits (158) exposed by openings in a solder resists layer (70) made of organic insulating resin. A single metal layer of noble metal (174) is provided on said exposed conductor circuits, under said solder bumps.
申请公布号 EP1915040(A2) 申请公布日期 2008.04.23
申请号 EP20070117547 申请日期 2002.09.30
申请人 IBIDEN CO., LTD. 发明人 NAKAI, TORU
分类号 H05K3/34;C23C18/31;C23C18/44;C23C18/54;H01L21/48;H01L21/60;H01L23/12;H01L23/498;H01L23/538;H05K1/11;H05K3/24;H05K3/28;H05K3/38;H05K3/46 主分类号 H05K3/34
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