ENTG

Every semiconductor fab runs on chemistry. Before a single layer of silicon is etched, deposited, or polished, the gases, liquids, and precursor chemicals feeding the process tools must be purified to extreme specifications — contamination below 1 part per trillion in some cases. Entegris is the company that makes that purity possible.

The business operates in two segments. Materials Solutions (MS) provides the chemicals themselves — chemical vapor deposition (CVD) and atomic layer deposition (ALD) precursors, CMP slurries and pads, ion implantation specialty gases, and formulated etch and clean chemistries. Advanced Purity Solutions (APS) provides the filtration, purification, and contamination-control systems that ensure those chemicals arrive at the wafer surface without introducing particles. Together, these two segments generated $3.20 billion in FY2025 revenue.

The physical products are deceptively simple-looking. A microfilter cartridge — roughly the size of a coffee can — contains microporous membranes that trap particles smaller than 5 nanometers. A single advanced fab consumes hundreds of these cartridges per month. They clog with contaminants and must be replaced regularly, generating recurring revenue that makes Entegris more stable through cycles than equipment vendors like Lam Research or KLA. The specialty chemicals are supplied in sealed, ultra-clean containers designed by Entegris to prevent re-contamination during transport and delivery. Closed-loop chemical delivery systems — custom-engineered for each fab's layout — are becoming standard at advanced nodes, creating additional switching costs.

The customer base is concentrated in the companies that matter most: TSMC, Samsung Foundry, Intel, SK Hynix, Micron, and the equipment OEMs (Applied Materials, Lam Research) whose tools consume Entegris filters and precursors. As nodes shrink, revenue per wafer increases — a 3nm wafer requires tighter filtration specs, more process chemistry steps, and more frequent filter replacement than a 7nm wafer. This is the structural growth engine: contamination intensity rises with every node transition.