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    • 6. 发明公开
    • 인쇄회로기판 및 그 제조방법
    • 印刷电路板及其制造方法
    • KR1020140067764A
    • 2014-06-05
    • KR1020120135431
    • 2012-11-27
    • 삼성전기주식회사
    • 오흥재백승호
    • H05K3/34H01L23/00H05K3/10
    • H01L2224/11H05K3/3463H01L24/11H05K3/102H05K3/3457H05K2201/0989H01L2924/00012
    • The present invention relates to a printed circuit board and a method for manufacturing the same. The printed circuit board of the present invention comprises a base substrate; an electrode pad for solder bump formation which is formed on the base substrate; an insulating layer for circuit protection which is formed on the base substrate; a solder bump which is formed on the electrode pad to bond the base substrate and an electronic component; and conductive powder mixed in the solder bump to increase bonding strength between the solder bump and the electrode pad and suppress formation of an intermetallic compound (IMC) between the solder bump and the electrode pad. According to the printed circuit board as above, since the conductive powder is interposed between the solder bump and the electrode so that the conductive powder and solder, which is a conductive adhesive, can be coupled to exhibit an effect similar to concrete, the bonding strength between the solder bump and the electrode pad can be increased and the formation of the IMC due to interdiffusion between the solder bump and the electrode pad can be suppressed, thus improving the reliability of the product.
    • 印刷电路板及其制造方法技术领域本发明涉及印刷电路板及其制造方法。 本发明的印刷电路板包括:基底; 形成在基底基板上的用于焊料凸点形成的电极焊盘; 形成在基底基板上的用于电路保护的绝缘层; 形成在所述电极焊盘上以焊接所述基底基板和电子部件的焊料凸块; 和导电粉末混合在焊料凸起中以增加焊料凸块和电极焊盘之间的结合强度,并抑制焊料凸块与电极焊盘之间的金属间化合物(IMC)的形成。 根据如上所述的印刷电路板,由于导电粉末介于焊料凸块和电极之间,因此作为导电粘合剂的导电粉末和焊料可以联接以显示出与混凝土相似的效果, 可以增加焊料凸块和电极焊盘之间的焊料凸块和电极焊盘之间的相互扩散形成IMC,从而提高产品的可靠性。