发明名称 |
GEDRUCKTE LEITERPLATTE UND VERFAHREN ZU DEREN HERSTELLUNG |
摘要 |
A process for manufacturing a multilayer printed circuit board comprises a step for providing openings in an interlayer insulating layer, and a step for filling up the openings to construct via holes in a manner of plugging the openings in the interlayer insulating layer. Electroplating may be used to fill up the openings and, at the same time, build up a conductor layer. The electroplating is performed using an aqueous solution containing a metal ion and 0.1 to 1.5 mmol/L of at least one additive selected from the group consisting of thioureas, cyanides and polyalkylene oxides as a plating solution. The multilayer printed circuit board comprises a core board and, as constructed on both sides thereof, a buildup wiring layer obtainable by building up the interlayer insulating layer and the conductor layer alternately with the via holes interconnecting the conductor layers. |
申请公布号 |
DE69931272(T2) |
申请公布日期 |
2007.03.15 |
申请号 |
DE1999631272T |
申请日期 |
1999.09.14 |
申请人 |
IBIDEN CO. LTD. |
发明人 |
EN, HONCHIN;NAKAI, TOHRU;OKI, TAKEO;HIROSE, NAOHIRO;NODA, KOUTA |
分类号 |
H05K3/18;C23C18/34;C25D5/18;H05K1/09;H05K3/00;H05K3/10;H05K3/24;H05K3/38;H05K3/42;H05K3/46 |
主分类号 |
H05K3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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