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Pcb sensitization

date：Nov 16,2018

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PCB sensitization


In the middle of pcb sensitization is the old version of the gold board (TwT has expired), the left is the new version of the circuit board. On the far right is a ferric chloride block. Below is the photographic printed circuit board developer.

PCB


Modifying the pcb sensitization circuit diagram. Note: The following lights are turned off due to the sensitivity of the photographic pcb sensitization board to light. Using the utility knife plus steel ruler to draw the area you need on the photosensitive circuit board, and draw a few times with more force.


Cut again and cut it. Be careful to tear off the white protective film! Then do the photographic work.After peeling off the effect of the photosensitive film, a dark green photosensitive layer should be seen. The side of the pcb sensitization circuit board diagram with the handwriting is attached to the photosensitive film with a transparent adhesive.

The photosensitive film is facing up and pressed with glass. Glass is what I got when I was decorating from someone else's house.The thicker the better, the thicker it is, the pressure is tight. The distance between the console light and the board is around 5CM

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