Etchant

Basics

• Any chemical used to etch metal
• Typically used in regards to PCB manufacturing, but can also have other uses such as metal finishes, and semiconductor production

Common Etchants

PCB Manufacture

• Copper Chloride Reusable either via dillution, or via chemical processing
• Ferric chloride
• Copper Sulphate ? may require electricity to "pull" the copper off from the unprotected areas. Is this worth it and will it work

Semiconductor Fabrication

• Pirannah Solution
• [[

See Also

• CNC Circuit Mill
• [[

Useful Links

• [Etching (microfabrication) The Wikipedia Page on Etching (in regards to microfabrication]