A variety of methods are used to create thin film used across many industries. Thin film layers are measured in monolayers (a fraction of a nanometer) to micrometers of thickness. Semiconductors and optical coatings are the primary applications that benefit from thin film constructs.
The oldest method, known as Successive Ionic Layer Absorption-Reaction (SILAR), is needed to create thin film from various substrates to produce a variety of coatings for applications such as semiconductors and solar panels. Other thin film methods include thin film sputtering, sputtered coatings, hard/other sputtered coatings, evaporated coatings, and circuit fabrication.