I'm watching this video here:
Apply a Solder-Resist Mask to PCBs (Printed Circuit Boards) - YouTube
It seems like before applying the soldermask, the board is already etched. The part where I am confused is where he applys the solder mask, then UV exposes the pins/pads on top of the solder mask. Then develops the mask without the pins/pad covered in soldermask.
1. Is this correct? I thought you can only UV develop with photoresist coding? But he uses soldermask lacquer.
2. Also, is there any common product you can get (say at home depot or ace) in place of the solder mask lacquer?
3. What solution is he using to develop the solder resist?
Apply a Solder-Resist Mask to PCBs (Printed Circuit Boards) - YouTube
It seems like before applying the soldermask, the board is already etched. The part where I am confused is where he applys the solder mask, then UV exposes the pins/pads on top of the solder mask. Then develops the mask without the pins/pad covered in soldermask.
1. Is this correct? I thought you can only UV develop with photoresist coding? But he uses soldermask lacquer.
2. Also, is there any common product you can get (say at home depot or ace) in place of the solder mask lacquer?
3. What solution is he using to develop the solder resist?