The PCB Making. DIY
DIY PCB Making Process 1. Design Artwork: Use software tool like protel, arcad. 2. Print the artwork on transparency, so as to make artwork film. 3. Use photo resist coated PCB. Place the film on top of the PCB. Expose under the Florescent lamp about 10 min. 4. Dip the PCB in the developer liquid, so as to remove the exposed part of the photo resist. Rinse in the clean water. 5. Etch the pcb in the FeCl3 solution until the copper is removed. 6. Drill the holes. Drill bit size 0.8mm and 1mm is commonly used. 7. Use acetone to remove the remaining photo resist on PCB. The PCB is ready for soldering the components. 11/11/10
remove photo resist
1-2. From artwork design to print out â—?
Use Computer to draw schematic/artwork, then laser print the artwork on transparency. You may need to touch up the transparency. Draw schematic diagram Design artwork
3 Photo exposure â—?
Place the film on the photo resist PCB. Printed side face the PCB. Sandwich the PCB firmly between two transparent acrylic boards. Then expose under the florescent lamp. 2 Soft 1mm transparent plastic sheet
film Acrylic board
Printed artwork on this side
Protective sheet Photo resist coating Copper plate Board
Acrylic board Acrylic board
11/11/10 1 the pcb material
Cut the PCB to required size. File away burr Peel off protective sheet before placing the film
Cutting PCB usually with pen knife. Edge burr is inevitable.5 File away burr is necessary.
4.5. Remove Photoresist, etch â—?
PCB making process 1
PCB with protective sheet
Peel off protective sheet.
Expose under the light.
After dip in developer , it is to remove photo resist that exposed to light.
After etching. Drill holes if required.
After removing all photo resist with acetone.