Invention Grant
US09288914B2 Method of manufacturing a printed circuit board with circuit visible 有权
具有电路可见的印刷电路板的制造方法

Method of manufacturing a printed circuit board with circuit visible
Abstract:
A printed circuit board with circuit visible includes a wiring layer, a first adhesive layer, a first dielectric layer, and a cover film, which are stacked in described order, the wiring layer comprising at least one electrical contact pad. The cover film has at least one opening corresponding to the electrical contact pad. The cover film includes a second dielectric layer and a second adhesive layer. A flow initiation temperature of the first adhesive layer is in a range from 85 degrees centigrade to 90 degrees centigrade, and a hardening temperature of the first adhesive being lower than 150 degrees centigrade.
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