I have started to etch my own boards but it's not going too well. I have printed the layout with an inkjet printer onto film and the result looks pretty good. I have a UV exposure unit from RS which contains 2 x 8W tubes and have tried a wide range of exposure times- It seems to need quite long times (20 mins) in order to yield what looks like a good result in developing after a couple of minutes. Etching starts well, but I always end of with some of the tracks dissolving away- the resist seems to flake away exposing the copper underneath.
Any advice appreciated- as there are a lot of variables in the process and I have wasted quite a lot of board already experimenting!
thanks
Phil
Any advice appreciated- as there are a lot of variables in the process and I have wasted quite a lot of board already experimenting!
thanks
Phil