Revision history of "File:Etch material layers.png"

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  • curprev 19:35, 15 March 2021Kjvowen talk contribs 384 bytes +384 Diagram of typical layer stack for an etching process. The top layer is the ''mask'' (for defining the pattern). Beneath is the film to be ''etched''. If the etch reaches the end of this film, the underlying layer is the ''etch stop''. Finally, any material that will not be exposed at any point during the etch is considered ''buried''.