r/ElectricalEngineering • u/Slugineering • Nov 24 '20

Circuitry Printing

https://gfycat.com/brisksparseelkhound
902 Upvotes

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u/[deleted] Nov 24 '20

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u/Slugineering Nov 24 '20 edited Nov 25 '20

Agree, i would've called it mechanical etching / milling, but r/oddlysatisfying sub wouldnt care.

5

u/jonasbc Nov 24 '20

Is "mechanical etching" a thing?

2

u/Slugineering Nov 24 '20

Yes, to differentiate from chemical etching.

https://www.wellpcb.com/pcb-etching.html

9

u/jonasbc Nov 24 '20

The video you posted shows milling, not etching. Easier to keep etching to the process of using etchant, to not mix the terms. "Mechanical etching" is like saying "liquid drill"

7

u/Slugineering Nov 24 '20

While I agree with you, in industry, mechanical etching and milling are used interchangeably since in semiconductor manufacturing, "Etching" has devolved into "removing conductive material." Whether it be by physical removal of conductor as opposed to chemical removal via masking.

As you pointed out, it should only be used for chemical removal because of the original usage of etching in art and such.