I have just tried my first attempt at a photo-resist PCB. The results, shown here are not quite ideal.
All of the traces should be the same size at 0.12 in. Obviously some of them have bled out to the point where clearances are not met, while others look quite sharp. The image on the left is the laser artwork which I used,. it looks quite a bit sharper than the resulting board on the right.
Can any of you who use this method tell what what I did wrong?
I am using the MG Chemicals kit with their exposure light a the recommended 8 min exposure. The artwork was held down with a clear acrylic sheet. The image on the developed board before etching looked sharper than the final result, though I don't have a picture to prove it.
All of the traces should be the same size at 0.12 in. Obviously some of them have bled out to the point where clearances are not met, while others look quite sharp. The image on the left is the laser artwork which I used,. it looks quite a bit sharper than the resulting board on the right.
Can any of you who use this method tell what what I did wrong?
I am using the MG Chemicals kit with their exposure light a the recommended 8 min exposure. The artwork was held down with a clear acrylic sheet. The image on the developed board before etching looked sharper than the final result, though I don't have a picture to prove it.