VCP copper plating process for flexible printed circuit board
A flexible circuit board and flexible printing technology, which is applied to printed circuit, printed circuit manufacturing, electrical components, etc., can solve the problems of high bending times of flexible circuit board, high-density circuit etching micro-short circuit, large thickness of copper plating on the board surface, etc. , to achieve the effect of solving the film alignment problem, wide application prospects, and improving deep plating ability
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Embodiment 2
[0048] Taking preferred embodiment 2 as an example, the present invention performs copper plating on the copper plating solution configured with various components according to the following process steps, and the specific steps are as follows:
[0049] (1) Clean the vertical continuous copper plating tank;
[0050] (2) Continue to wash with deionized water circulation for 30 minutes;
[0051] (3) Add copper plating solution and copper plating additive to VCP copper plating tank, copper plating solution comprises copper sulfate pentahydrate, sulfuric acid and hydrochloric acid, and copper plating additive solution comprises polyethylene glycol, sodium polydithiodipropane sulfonate and healthy that green;
[0052] (4) Adjust the temperature to 25°C;
[0053] (5) Start the circulating filter pump;
[0054] (6) Put the flexible circuit board to be electroplated into the vertical continuous VCP copper plating tank;
[0055] (7) Adjust the current density to 2.5A / dm2, electropl...
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