Introduction: How to Make a PCB Circuit Board by Yourself?
Thermal transfer paper
Small electric drill or hand turn
Step 1: Print the Schematic You Want to Print on Thermal Transfer Paper
If the circuit diagram is dense or slender, it is best to use a good printer to avoid the printed circuit diagram defect can not be used. If it is a simple circuit, you can directly draw a circuit diagram with a paint pen, or even use a knife to engrave the circuit diagram.
Step 2: Processing Copper Clad Laminate
According to the size of the PCB, cut the copper clad plate and clean it. It can be washed with soapy water. If you can condition it, you can use a steel ball to brush it without fear of scratching the copper foil.
Step 3: Dry the Brushed Copper Clad
Dry the brushed copper-clad laminate and align the PCB with the pattern on the thermal transfer paper, then apply it with clear tape. If it is a double-panel, it is necessary to align all the mounting holes on both sides, otherwise, it will be completely scrapped.
Step 4: Thermal Transfer
Next is thermal transfer, generally, with an iron, a transfer machine or a plastic machine is better. When using the iron to transfer, the temperature should be raised a bit. Find a solid base and start ironing. When ironing, keep moving in the same direction. At the same time, press down hard. Generally, a small amount of smoke will appear.
Step 5: How Do You Look at the Transfer of the Transfer Paper?
After the transfer is done, look at the transfer paper at the corner of the transfer paper. If it is complete, peel off the transfer paper directly. If it is not good, cover it and iron it for a while.
Step 6: Check the Transfer Circuit
After tearing off the transfer paper, you need to check the transfer circuit to see if there is any short-term or missing print. If you have it, you can use the oil-based marker to fill the coating.
Step 7: Chemical Corrosion
The next step is chemical corrosion. There are many corrosive agents for corrosive copper-clad laminates, but it is environmentally friendly and safe to use ferric chloride. Pour the appropriate amount of ferric chloride particles into a plastic box and prepare with boiling water until the particles are completely dissolved. Then place the copper clad plate and shake the plastic box.
Step 8: Take Out the Copper Clad Laminate
Wait until there is no toner in the place where all the copper foil is corroded, you can take out the copper clad board, remember to take it out and rinse it with water. After washing and drying, use sandpaper to polish the toner, and apply a layer of pine perfume to prevent oxidation of the copper foil, as well as fluxing.
Step 9: A PCB Circuit Board Has Been Done Now
At this point, a PCB board is ready to start soldering components. Generally speaking, soldering starts with short, small components and finally solders larger components.
Step 10: Please Take Attentions
1.When cutting the board, the copper foil on the edge of the PCB must be treated, otherwise, it will affect the effect of thermal transfer.
2. Also note that after the copper clad plate is cleaned, do not touch the copper foil surface with your hands. Otherwise, the grease on the hand will not be easily attached, which will affect the final quality of the circuit board.
3. The use of ferric chloride is not possible with metal vessels.