Etchant

Oxalic Acid Dihydrate

Utilized for etching amorphous Indium Tin Oxide (ITO) layers. Typically involves blends of different acids tailored to the characteristics of the target thin film.

Aqua Regia

A potent mixture of hydrochloric acid and nitric acid, specifically employed to etch crystalline ITO layers.

Al Etchant

Composed of various acids combined to effectively etch aluminum (Al) layers.