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Project:PCB Making/Cupric chloride etchant: Difference between revisions
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Project:PCB Making/Cupric chloride etchant (view source)
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*[http://members.optusnet.com.au/eseychell/PCB/etching_CuCl/index.html Etching with Air Regenerated Acid Cupric Chloride] | *[http://members.optusnet.com.au/eseychell/PCB/etching_CuCl/index.html Etching with Air Regenerated Acid Cupric Chloride] | ||
*[http://tech.groups.yahoo.com/group/Homebrew_PCBs/ Yahoo - Homebrew PCBs] | *[http://tech.groups.yahoo.com/group/Homebrew_PCBs/ Yahoo - Homebrew PCBs] | ||
*[http://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/ A better etching solution (Instructables)] | |||
I understand from some sources that adding HCl to Ferric Chloride will also regenerate it and eventually the etchant changes to CuCl as above. I don't know how carefully that procedure needs to be managed, or whether it's better to start directly with the CuCl bath. | I understand from some sources that adding HCl to Ferric Chloride will also regenerate it and eventually the etchant changes to CuCl as above. I don't know how carefully that procedure needs to be managed, or whether it's better to start directly with the CuCl bath. | ||
