make a PCB circuit board

1. The first part, we have to print the circuit diagram at the iron on PCB paper.
2. Cut the paper following the paper with the size needed of our PCB board.
3. Ironing the printed iron on PCB to the PCB board until the ink stick to the PCB board.
4. After the circuits have stick at the board, drill the entire hole that needed for all the components
5. After that, we have pour an acid to make the circuit can be used
6. Clean the board with the thinner.
7. Solder all the components at the PCB board to complete the process