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"Information of chemical etching of PCB"



2000

Hello

I'm trying to make a PCB chemical etching machine to avoid the human contact with the chemicals products. Where can I find information about etching time's, concentration of the solution(part of water per parts of ferric chloride), when the solution is saturated, what other solution can I use.

I'm a computer engineer student from Venezuela

Bye

Thanks

Jesus reategui
- Barquisimeto, Lara, Venezuela
^


Ferric Chloride

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2000

You really need to contact companies who manufacture equipment for printed circuit board fabricators. The machines you refer to already exist. Chemical formulations include, in addition to ferric chloride, ammonia, cupric chloride, and sulfuric acid/hydrogen peroxide. What you use and how you use it depends upon the particular application. For a start, check out journals devoted to printed circuit fabrication (BIG hint on a starting place for an internet search)!

James Totter
James Totter, CEF
- Tallahassee, Florida
^

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