化学铣切是把零件浸入腐蚀溶液中，对裸露的表面进行腐蚀的加工工艺，主要用于金属。

蚀刻在半导体制造工业中，用于制造集成电路；在航空航天工业中使用，可以在表面铣出凹坑、网格、筋条的薄壁件。

Etching may refer to:

Most of the above can be called chemical etching, though the term is mostly used for industrial etching. An etcher is most likely to mean a printmaker. An etchant (sometimes mordant) is any chemical used to etch, but probably refers to an industrial process.