TABLE 3.

Simple summary of common etching methods of different substrates.

Substrate	Common methods	References
Aluminum (Al)	Chemical Etching (Cl− Ion)	(Ran et al., 2019; Zhang et al., 2019; Ellinas et al., 2021)
Magnesium (Mg)	Chemical Etching (SO4 − Ion)	(Ran et al., 2019; Ellinas et al., 2021; Peng et al., 2021)
Stainless Steel	Chemical Etching (Cl− Ion)	(Nanda et al., 2019; Saleh and Baig, 2019; Ellinas et al., 2021)
Glass	Laser Etching (Plasma)	(Li et al., 2018; Wu et al., 2021; Gao et al., 2022)
Polymer	Laser Etching (Plasma)	(Dimitrakellis and Gogolides, 2018; Lee et al., 2018; Nguyen-Tri et al., 2019b; Nageswaran et al., 2019)