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etchant

etchant

8.8
A strong liquid that removes metal or other material from a surface
  • noun
  • /ˈɛtʃənt/
  • Specialized
translation icon : grabador
  • The engineer applied the etchant to the metal surface, successfully removing the unwanted layer.
  • etchant molecules

Examples

  • After the resist was stripped, the copper layer was spray-etched with an etchant containing 10 g/l ferric ammonium sulfate and 10 cc/l sulfuric acid.

    Academic text (1998)
  • The typical Cr etchant is an alkaline KMnO4 solution followed by an oxalic acid rinse.

    Academic text (1998)
  • How about making your own circuit boards by melting copper etchant?

    Blog text (17)
  • We still have surfaces on which etchant atoms or molecules adsorb, and we still have changes in the structure of the surface when the etch products are removed.

    Academic text (1998)
  • With time, the etchant molecules in the solution would react with atoms of the exposed surface to form reaction products that would dissolve, thereby removing material from the surface.

    Academic text (1998)
  • Multilevel thin-film processing on alumina substrates exposes metal features on top and bottom surfaces to various acids and alkaline etchants more than ten times during normal processing.

    Academic text (1998)
  • One could presume that a surface exposed to an etchant would quickly become too rough for an STM probe to distinguish atomic order, like the deeply and irregularly etched surface depicted schematically in figure lb.

    Academic text (1998)
  • Adhesive bonding (IPS Ceramic etchant/Monobond S/Variolink II, Ivoclar Vivadent) was preferred in the following situations: Abutment height of 4 mm or less.

    Academic text (2016)
  • Using an etchant is essential in the manufacturing process to create precise designs on circuit boards.

  • Before engraving, the artist prepared the glass by coating it with an etchant that would create intricate patterns.

How Corrosive

caustic
  • Specialized
8 7.6
etchant
  • Specialized
8.8
acid
4 4.2

Surface Forms

etchant singular
etchants plural

Morphology

etchant = etch (transparent) = etch + ant

The noun is a regular formation from the verb 'etch' with the agent/result suffix '-ant', so its meaning 'a substance that etches' is directly predictable from the base.

Etymology

The word etchant comes from etch, a word that long ago was used like the simple word eat to mean 'to eat into' or 'bite' a surface. So an etchant is a chemical that 'eats away' or removes material from a surface, which is why it is used for engraving and manufacturing.