Manufacturing method of printed circuit board ink plug hole
A technology for printed circuit boards and manufacturing methods, which is applied in the secondary processing of printed circuits, the formation of electrical connections of printed components, and the application of non-metallic protective layers. It can solve the problems of ink spillage and oil explosion in holes, and prevent explosions The effect of oil problems
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] Please refer to Figure 3 to Figure 9 , the manufacturing method of the printed circuit board ink plug hole provided by the embodiment of the present invention comprises the following steps:
[0031] S1: Provide a circuit board, the circuit board is provided with an oil plug hole 10, and the oil plug hole 10 penetrates the circuit board along the stacking direction of the circuit board; understandably, the memory copper thickness of the circuit board Not less than 2 ounces (OZ), preferably, in this step, also include the step of grinding plate, through grinding plate step, make described ci...
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