发明授权
US08141241B2 Method of manufacturing a printed circuit board having metal bumps 有权
制造具有金属凸块的印刷电路板的方法

Method of manufacturing a printed circuit board having metal bumps
摘要:
A method of manufacturing a printed circuit board having a metal bump, including: forming a recess for creation of the metal bump on a metal carrier; forming a barrier layer on the metal carrier including the recess; forming an upper circuit layer on the barrier layer, the upper circuit layer including the metal bump charged in the recess and a circuit pattern; preparing an insulating layer, and transferring the upper circuit layer to the insulating layer; and removing the metal carrier and the barrier layer.
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