PCB News - The circuit board processing is no longer abnormal, the industry focuses on pcb production

The circuit board processing is no longer abnormal, the industry focuses on PCB production

In the process of circuit board processing, it is inevitable that there will be several defective products, which may be caused by machine errors or human factors. If the broken holes are distributed in dots instead of the whole circle of open circuits, it is called dotted. Hole rupture, some people call it "wedge-shaped hole rupture". The common cause is the poor handling of the slag removal process. When PCB circuit boards are processed, the slag removal process will first be treated with a leavening agent, and then the strong oxidant "permanganate" will be corroded. This process will remove the slag and produce a microporous structure. The oxidant remaining after the removal process is removed by the reducing agent, and the typical formula is treated with an acidic liquid.

After the glue residue is processed, the problem of residual glue residue will no longer be seen, and everyone often neglects the monitoring of the reducing acid solution, which may allow the oxidant to remain on the wall of the hole. After the circuit board enters the chemical copper manufacturing process, the circuit board will undergo micro-etching treatment after the pore forming agent is treated. At this time, the residual oxidant is again soaked in acid to peel off the resin in the residual oxidant area, which is equivalent to destroying the pore forming agent.

The circuit board processing is no longer abnormal, the PCB industry focuses on PCB production

I don’t know if you have any understanding of these abnormalities in circuit board processing. Our customers always worry about scrapping the boards. If there is a problem, we need to analyze the problem first and then solve the problem. The delivery time is slow? What causes the slow delivery? What abnormal situations and how to prevent in the process of PCB circuit board processing, this is what each of our operators and our dear customers need to know.

Of course, every aspect of the PCB circuit board processing requires us to strictly control, because chemical reactions sometimes occur slowly in corners that we do not pay attention to, thereby destroying the entire circuit. Everyone should be vigilant in this state of puncture.