As a by-product, fungi can produce organic acids that will corrode and etch inorganic materials.
The chips are encoded by generating nanometer-thick layers of porous films on the wafers using a special electrochemical etch .
She uses acid to etch designs into the surface of metal plates, echoing the way that wind and water wear away at stone over time.
Jim continued to run his fingers over the artifact, exploring each etch and nick.
Chip production involves some pretty noxious substances, such as the decidedly nasty hydrofluoric acid used to etch the silicon wafers.
And they could play a role in hyper-accurate gyroscopes or help etch superfast computer chips.
Hydrofluoric acid is the only solvent you'll find to etch glass.
I could take a screwdriver and etch some very interesting designs on your car, but I doubt you would call me an artist.
acetic acid gives a more selective etch
These solutions are available from several manufacturers in different strengths to achieve the required depth of etch and a finish that meets the original specification.