What Types of Etchants are Used in Nanotechnology?
Various types of etchants are used in nanotechnology, including wet etchants and dry etchants. Wet etchants are liquid chemicals that react with the material to be etched. Common wet etchants include acids like hydrofluoric acid and hydrochloric acid. Dry etchants, on the other hand, involve gaseous chemicals or plasmas that etch materials through chemical reactions or physical sputtering. Examples of dry etchants include oxygen plasma and reactive ion etching (RIE).
