PRINTED CIRCUIT BOARD AND MANUFACTURING METHOD THEREOF
摘要
<p>PURPOSE: A PCB(Printed Circuit Board) and a manufacturing method thereof are provided to form a high-precision dam in an inkjet mode, thereby effectively controlling the flow of an under-fill solution. CONSTITUTION: A circuit pattern and a pad are formed in one side of a substrate(10). A solder resist layer(20) is formed in one side of the substrate so that the pad is exposed. A conductive material is printed on the pad in an ink jet printing mode. The surface(70) of the solder resist layer is plasma-processed. A dam(30) is formed over the solder resist layer in the ink jet printing mode in order to control the flow of an under-fill solution injected between the substrate and an electric element.</p>
