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2021-08-11
3. Semi-additive method to produce precision fine wire technology The main process flow of the semi-additive method is: electroless copper sinking on the whole board […]
2021-08-11
Then press the pre-designed positioning system to carry out CNC drilling. After drilling, the hole wall should be etched and de-drilled, and then the process of […]
2021-08-11
As electronic products demand more and more functions, the structure of pcb circuit boards is becoming more and more complex. Due to the space limitation of […]
2021-08-10
The TCD process mainly includes the following technical content: A. Plug hole technology Before the screen printing thermosetting ink, the inner through holes should be […]
