High density package substrate and method for fabricating the same
    1.
    发明授权
    High density package substrate and method for fabricating the same 有权
    高密度封装基板及其制造方法

    公开(公告)号:US08058567B2

    公开(公告)日:2011-11-15

    申请号:US12175094

    申请日:2008-07-17

    Abstract: The invention provides a high density package substrate and a method for fabricating the same. A double-sided copper clad laminate containing an upper copper foil and a lower copper foil is provided. A bottom pad is disposed on the lower copper foil, aligned to a predetermined position of a through hole. The through hole is formed by laser drilling through the upper copper foil and the substrate, but not through the bottom pad. A seed layer is formed conformally lining the through hole, and a metal layer is formed on the seed layer by plating to form a plated through hole (PTH).

    Abstract translation: 本发明提供一种高密度封装基板及其制造方法。 提供含有上铜箔和下铜箔的双面铜箔层压板。 底部焊盘设置在下铜箔上,与通孔的预定位置对准。 通孔是通过激光钻孔穿过上铜箔和衬底形成的,而不是通过底垫。 种子层被形成为保形地衬在通孔上,并且通过电镀在种子层上形成金属层以形成电镀通孔(PTH)。

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