发明授权
US08464423B2 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 first carrier, forming a first barrier layer on the first carrier, and forming an upper circuit layer on the first barrier layer, the upper circuit layer including a metal bump charged in the recess and a circuit pattern; forming a second barrier layer on a second carrier, and forming a lower circuit layer on the second barrier layer; preparing an insulating layer, and transferring the upper and lower circuit layers to the insulating layer; removing the first and second carriers; and removing the first and second barrier layers.
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