| 摘要 |
Bonding pad(s) formed on a printed circuit board with circuit patterns. The bonding pad(s) include a plurality of copper patterns formed on the PCB and electrically connected to the circuit patterns, a filler filled between the copper patterns such that an upper surface of the copper pattern is exposed, and a plating layer applied at an upper surface of the copper patterns. An interval between wire bonding pad(s) is reduced by preventing a nickel plating layer and a gold plating layer from protruding at a lower portion of a copper pattern when they are formed on the copper patterns.
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