Greetings! I have a question for everyone concerning the "wet method" of printed circuit boards. I was wondering what other types of etchants are available besides your basic ferric chloride, and sodium persulphate? I remember a while ago someone mentioned the use of sodium persulphate catalyzed with either hydrochloric acid or sulfuric acid. What does this mean and how can I do it? Basically I think it would be very interesting to experiment with high speed etching methods! Thanks! -Randy Knutson --------------------------------- Do You Yahoo!? LAUNCH - Your Yahoo! Music Experience [Non-text portions of this message have been removed]
Message
etching methods
2002-05-25 by Randy Knutson