Photoresists: Emissions

Where a tiny, precious chemical's carbon footprint comes from

Where a tiny, precious chemical's carbon footprint comes from What this tab covers The greenhouse-gas footprint per tonne, split by lifecycle phase (feedstock, production, movement, use, end of life), the global total, other environmental impacts, levers and low-carbon routes, India's position, and where the investment opportunity lies. Emission intensity 5.00 t CO2e per t range not published · indicative: solvent-dominated formulation (PGMEA about 2-3 t CO2e per t) plus energy-intensive cleanroom synthesis and filtration of specialty polymers and PAGs

Per t of formulated photoresist, cradle-to-gate. Intensity: indicative; no producer LCA found. Global total: not published.

Share of footprint by lifecycle phase

Feedstock 50% Production / process 40% Movement 10%

Footprint by lifecycle phase

Phase	Intensity	Share	Main sources of emissions	Notes	Source
Feedstock	about 2.5 t CO2e per t	50%	petrochemical solvents, monomers and PAG synthesis	Indicative	Indicative
Production / process	about 2 t CO2e per t	40%	multi-step synthesis, cleanroom filtration and cold storage	Indicative	Indicative
Movement	about 0.5 t CO2e per t	10%	temperature-controlled and some air freight	Indicative	Indicative
Use	solvent VOCs evaporate during coating and baking	–	VOC emissions, usually abated by fab exhaust treatment	Indicative	Indicative
End of life	not published	–	solvent waste incinerated or recovered; stripped resist in wastewater	PFAS-containing waste is persistent	Indicative

Other environmental impacts

PFAS in some photoacid generators and surfactants; solvent VOCs; tin and other metals in EUV resists.

Levers to cut emissions

PFAS-free photoacid generators and surfactants
Solvent recovery at fabs
Lower-dose resists that cut EUV energy per wafer (indicative)
Renewable power for cleanroom manufacturing

India

No production; India's fab and ATMP resist use is small today.

Emission figures are indicative global averages from the life-cycle studies named; actual footprints vary widely by site, energy mix and method.

Low-carbon routes

Route	Intensity	Cost premium	Status	Source
PFAS-free resist formulations	not published	not published	under development by major suppliers (indicative)	Indicative

For a climate investor Photoresist is not a decarbonisation play: its own footprint is small. The climate-relevant angles are PFAS-free chemistry and resists that need lower EUV doses, which cut fab power. For an India-focused fund it is a strategic-autonomy bet: Tata Electronics' MoUs with Fujifilm and JSR point to local formulation or packaging under licence, which only makes sense once Dholera volumes arrive (targeted FY2029-30). Expect Japanese partners to keep the core chemistry.