Etching & Deposition
Etching and deposition processes shape and build thin-film structures in semiconductor and battery research by selectively removing or adding material with nanometer-scale precision. As a hard skill it requires understanding wet-chemical and dry plasma etch chemistry, masking and resist techniques, and the process parameters governing deposition rate, step coverage, and film stress. Battery researchers apply etching to prepare cross-sections for analysis and to pattern electrode features, and deposition to fabricate thin-film cell stacks, protective coatings, and current collector layers in next-generation solid-state and micro-battery devices.
