I wonder how many of you using acid stoper during developing of dry film?
say citric acid. and I would like to hear your comments. For those chemists
out there, I like to know whether it is really possible to titrate a weak
acid with three Ka ?


Oh, by the way, anyone using resist lamintor with two sets of rollers, hot
to hot; Like to try or modify a one, if you have some information, would you
please share  with me?

Thanks.

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