How do you etch a PCB with ferric chloride?
Pour a modest amount of ferric chloride into a plastic container with a lid; just enough to cover the board completely. Let the board soak for 10 minutes, make sure the lid is properly secured and agitate it every few minutes by rocking the container back and forth.
Which solution is used for PCB etching?
Like the PCB manufacturing in Fusion PCB of Seeed. Etching liquid are mainly copper chloride solution, ferric chloride liquid, alkaline etching, acid/hydrogen peroxide (hydrogen peroxide) etching.
How do you etch a PCB without ferric chloride?
Equal parts vinegar and peroxide. A small heap of salt. Your masked copper board/soon-to-be PCB. Optionally, a little heat to speed things up.
What do you mix ferric chloride etching with?
Mix up 5 litres of Edinburgh Etch as follows;
- 1 LITRE CITRIC ACID SOLUTION (250g citric acid powder dissolved in 750ml warm water)
- 4 LITRE FERRIC CHLORIDE SOLUTION 40% The solution will remain active for a long time, a few years possibly.
How many times can you use ferric chloride?
Ferric chloride can be used more than once.
How long does ferric chloride take to etch?
Toss the PCB into the solution and it’ll take off. If this is the first time you’re using this batch of solution (and I presume it is), it’ll etch super-fast. This small board took only 2 minutes.
How long does ferric chloride last?
The generally accepted shelf life of ferric chloride solution is approximately six months. Adding HCl acid can restore the cutting ability of the FeCl3.
How do you make a etching solution?
Mix two-parts of diluted hydrogen peroxide with one-part muriatic acid. There you are, done! The hydrogen peroxide acts as an oxidizer allowing the acid to eat away the copper. Place your board to be etched in your new solution and watch it go!
What can I use instead of ferric chloride?
What are some substitutes for alum and ferric chloride? Substitutes include other aluminum and iron salts, like sodium aluminate and ferric sulfate, but these may or may not work. Proprietary products, instead of commodities, may offer a better solution.
How do you make ferric chloride at home?
To the iron add 100mL of water and 100mL of 12M hydrochloric acid. The iron will start reacting with the acid to produce hydrogen gas and ferrous chloride. If the reaction is proceeding too slowly for your liking you can heat up the mixture. A flask of cold water on top is useful to reduce evaporative losses.
What happens when you add water to ferric chloride?
When ferric chloride is dissolved in water the solution becomes strongly acidic as a result of hydrolysis. The chemical reactions, in words and formulae are: Schematic representation of the chemical interactions occurring during etching copper in ferric chloridesolution.
Can you reuse ferric chloride after etching?
Ferric chloride can be used more than once. Once it stops etching, follow the hazardous waste guidelines for where you live.