2022-09-21 11:01 Status: # Anisotropic etch  [^3] A subtractive etching technique that removes material in a specific direction. This can produce geometric shapes like sharp corners, flat surfaces and deep cavities. [^1] It is orientation dependent. [^2] --- # References [^1]: [Springer](https://link.springer.com/referenceworkentry/10.1007/978-0-387-48998-8_35) [^2]: [Wikipedia](https://en.wikipedia.org/wiki/Etching_(microfabrication)#Anisotropic_wet_etching_(Orientation_dependent_etching)) [^3]: [Springer Open](https://mnsl-journal.springeropen.com/articles/10.1186/s40486-021-00129-0)