Page 1

The PCB Making. DIY

11/11/10

1


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

2


DIY

TOOLS design

print artwork

photo exposure

remove photo resist

etching copper

drilling

cleaning

MATERIALS

FeCl3

11/11/10

3


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

11/11/10

4


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

Acrylic board

Florescent light

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

11/11/10

2

Peel off protective sheet.

3

Expose under the light.

4

5

6

After exposure

After dip in developer , it is to remove photo resist that exposed to light.

After etching. Drill holes if required.

7

After removing all photo resist with acetone.

6

PCB making, DIY  

Home made etched PCB using photosensitive PCB.

Advertisement