The Ammonia for Semiconductor segmentation by application reveals four primary demand drivers. Etching accounts for roughly 40 % of total spend, as ammonia‑based plasma chemistries enable high‑selectivity removal of silicon nitride and silicon dioxide layers in advanced node patterning. Deposition follows with an estimated 30 % share; ammonia serves as a nitrogen source in low‑pressure chemical vapor deposition (LPCVD) of silicon nitride and silicon oxynitride films, where process stability directly influences wafer throughput. Cleaning contributes about 20 % of the market, leveraging aqueous ammonia solutions for post‑etch residue removal and surface passivation, a step critical for defect mitigation in 5‑nm and beyond technologies. Finally, Doping represents the remaining 10 %, where ammonia‑derived nitrogen is incorporated to modulate carrier concentrations in selective‑area doping processes. Collectively, these application categories define the market’s revenue distribution, with each segment’s growth tied to node scaling, yield pressures, and the shift toward high‑k/metal‑gate stacks.