Method for improving resin filling process capability
A technology of resin plugging holes and capacity, which is applied in the direction of printed circuit manufacturing, electrical connection formation of printed components, electrical components, etc., and can solve problems such as small size, ink entry, poor contact of components, etc.
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[0019] In order to facilitate those skilled in the art to understand the technical content of the present invention, the present invention will be further described in detail below in conjunction with embodiments.
[0020] When the present invention is specifically implemented, the steps are as follows, including:
[0021] Pre-process; electroplating, electroplating of hole copper and surface copper on the PCB board;
[0022] Paste dry film, cover both sides of the PCB board with dry film;
[0023] Then make and expose the film; in the specific operation, make a separate film, design a light blocking point on the film corresponding to the hole position of the plug hole, and the light blocking point is 4mil larger than the aperture of the plug hole on one side, and then use the film pair The dry film on the PCB board is exposed and cured. At this time, the position of the plug hole is blocked by the light blocking point, and the corresponding position on the dry film will not be expose...
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