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In my last attempt to created fine-pitch PBC, I had a problem while attempting to drill the pads. The process drilling tended to tear the pad away from the board, runing all my hard work. I though it might be better to drill before etching.
Am I the only one who has that problem?
I've always used magazine paper which works perfectly.Press and peel - works ok-ish, used it for a few years, until I found you could laser onto magazine paper - which actually gave better result than P&P.
I agree, you can't beat the photo method. It doesn't work out any more than proprietary peper and probably gives better results.As I've started to move onto finer work, I've found the only way is the UV method, sounds expensive, at the end of the day it does cost a little more but you would never get the results without it. Can send you details of my led uv system if interested.. might be something to progress onto after the P&P / paper method - all the etching stuff is just the same so nothing will be wasted - I still use the paper stuff for 'heavy' circuits like psu's etc.
{snip}Press and peel - works ok-ish, used it for a few years, until I found you could laser onto magazine paper - which actually gave better result than P&P.
{snip}