H3PO4 and HCl etching reagent have a good selective corrosion for etching InGaAs/InGaP materials [9], which can etch InGaP materials, but not InGaAs and GaAs materials.
The white undersurface of artist's fungus (Fomes applanatus, or Ganoderma applanatum), which darkens when cut, has been used for etching.
Like the late Ralph Shapey, Mincek has a knack for etching jagged figures so cleanly that they take on a sculptural quality.
I've not felt like this since I stood before my ferocious headmistress for etching the name of a childhood sweetheart into my desk.
Hydrofluoric acid — dangerous stuff, used for etching glass — could not be kept in glass, so it was sold in special small bottles made of gutta-percha, a sort of rubbery substance.
One company selling hydrochloric acid for etching cement floors reckoned that, because it was in gel form and could legally be washed down the drain, the product was environmentally friendly.
But making it work for etching transistors took years of experimentation.
As for etching your own PCB — that can be cheap but is also a pretty fiddly process.
We will discuss the numerical procedure of a plasma surface interaction for etching.
The parameters for etching the 'best' macropores are used as reference.
(b) AFM images of LDE nanoholes for etching at T = 650℃.
