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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://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant!--A-better-etc/ A better etching solution (Instructables)]
*[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've set up a bath at home using this system and made the first pcb. Results are quite encouraging - I kept it at the low end of possible concentrations and ran it it 35 C (the tank will go to about 50), so fumes are acceptably low. It did a decent etch in 15 minutes. I used liquid developer from Mega, which takes about 1 minute.--[[User:Artag|Artag]] 16:49, 6 September 2010 (UTC)
I've set up a bath at home using this system and made the first pcb. Results are quite encouraging - I kept it at the low end of possible concentrations and ran it it 35 C (the tank will go to about 50), so fumes are acceptably low. It did a decent etch in 15 minutes. I used liquid developer from Mega, which takes about 1 minute.--[[User:Artag|Artag]] 16:49, 6 September 2010 (UTC)
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