PCB can be witnessed in Figure 1 that the person needs to wear gloves while immersing the PCB board in the PCB solution. This is because PCB solution is acidic, and with bare hands, the person tends to harm their hands if exposed to the PCB solutions. The process of using PCB solutions and removing the copper from the PCB board is simple enough to be done at home or any other suitable place.
PCB Solution
The main constituents of the PCB solution are primarily copper chloride (CuCl2) and ferric chloride (FeCl3). These two chemicals are available in different ratios to the user, and it depends on the engineer which proportion of the substances they intend to use. PCB solutions exist in various colors, yet it is not hard to remove the colored solution of the PCB board, which is usually done by submerging the PCB board into warm water.
Figure 2 shows a PCB board immersed in a dark green colored solution, and it is visible that some traces of the PCB’s solutions are left on the surface of the PCB board; however, it is not a mentally taxing or time-consuming task for the user.
PCB fabrication using PCB solution
Figure 3 elaborates on the processes that a PCB board undergoes before reaching its final state.
PCB can see in Figure 3 that the color of the solutions has changed from green to clear white after the PCB board has been immersed in the answers. This is why copper chloride in the PCB solutions has reacted with the copper on the PCB board.
Conclusion
PCB solutions play a vital role in the designing of the PCB board. The excess copper on the board needs to be removed from the surface. Else the PCB board doesn’t function according to the user’s will. PCB solutions aid in removing the excess copper and imprinting the PCB design on the PCB board. The solution also makes the PCB tracks more visible and prominent. It gets more accessible for the user to drill holes in the surface and then solder the desired components into their right places, leading to the development of a complete PCB.
