Difference between revisions of "Chemical Etchants"

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Chemical etching is one step of some popular [[techniques | PCB fabrication techniques]].
 
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In this technique,
 
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* one starts with a copper-clad board.
 
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* one puts a mask over all the copper he want to keep. There are a variety of ways to do this -- see [[Toner Transfer]] and [[Photoetching]].
 
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* one removes the parts he don't want to keep, by chemically etching away the copper.
 
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* cleanup: wash off the board in the sink; carefully store or dispose of the acid.
 
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There are a lot of different chemical techniques for doing this, each with its own advantages and drawbacks.
 
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None of these chemicals is incredibly dangerous, but they can all be toxic or caustic, and should be treated with care. Eye protection and gloves are a very good idea. Before you start, make sure you know how dangerous each chemical is, and figure out what you will need to do if you spill it or get it on yourself. Washing with plenty of water is usually a good start. For some chemicals you may want to keep a neutralizing agent handy. An MSDS (Materials Safety Data Sheet) for the chemical will give you some basic information.
 
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== vinegar and salt ==
 

Latest revision as of 15:10, 8 January 2025

What if your website opencircuits.com was guaranteed a massive boost in traffic starting today? Many sites unknowingly lose hundreds—even thousands—of potential visitors daily. Our AI-powered solution ensures you don’t fall into that category.

Get started with a 4,000 visitors at no cost so you can test the results firsthand. Beyond the trial, we deliver plans for up to 250K, all targeted to fit your ideal demographic. Let’s expand your site’s reach together. Get more information here: https://shorten.ee/YBNHL

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