The etching process was done manually. I had done this before during my diploma program. It is really helpful. Manual step for etching process:
1- Clean the PCB Board
2- Print the PCB layout on a piece of paper
3- Iron the printing circuit on PCB Board
4- Cut the PCB Board with required size
Use FERRIC CHLORIDE Liquid
Final step: Clean the PCB Board using Thinner liquid
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