Sub-system
A chemical purified to parts per billion is worthless if the pipe that carries it adds particles back. The systems that store, filter and dispense process materials are a business in their own right, and a failure in one shows up as a yield loss that is extremely hard to trace.
In one sentence
Ultrapure delivery and filtration is the equipment that transports process chemicals, gases and water from bulk storage to the process tool — filters, tubing, valves, pumps and dispense systems — engineered to add no contamination of its own.
Everything in the path is a potential source. Tubing can shed particles or leach additives; a valve can generate them when it actuates; a pump can cavitate. The materials used are chosen for chemical inertness and cleanliness rather than cost, and the whole assembly is qualified as part of the process it feeds.
Filtration is the last defence, and it has become finer as feature sizes shrank: filters now have to retain particles smaller than the features they would ruin, at flow rates that keep a tool running. That is a materials-science problem, not a plumbing one.
A degrading filter or a shedding fitting produces defects that look like a process problem at whatever step happens to be downstream. The signal is intermittent, the cause is upstream of the tool that shows it, and finding it means instrumenting a delivery system nobody suspected. This is a common shape for a fab's most expensive investigations.
Semiconductor-grade water is produced on site by a treatment plant that removes ions, organics, dissolved gases and particles far beyond drinking-water standards, and is recirculated continuously because standing water grows contamination. It is one of a fab's largest pieces of supporting infrastructure and a real consideration in site selection.
1 of these is marked as a chokepoint: a handful of qualified suppliers, a multi-year lead time, or a single geography.
A fab's ultrapure water plant draws continuously at industrial volumes. Where that water is not available, or is contested, the plant cannot be built however good the treatment technology is.
The delivery path is qualified along with the chemical it carries, so changing a filter, a fitting or a length of tubing is a process change rather than maintenance.
Other pages in this map that name Ultrapure delivery as something they cannot do without.
What each company supplies at this step, and — where a public figure exists — its share of this specific market — with what that share measures, the period it covers and who published it. Some rows also show the company’s own reported revenue for the segment covering this step, which is a different thing: it says how much this business matters to that company, not how much of the market it holds. Not a ranking and not a recommendation.
Supplies filtration, fluid handling and materials delivery systems for fabs.
Advanced Purity Solutions segment — 56.1% of Entegris’s reported revenue ($1.8B)FY2025 · company filings · not a market share
Supplies gas delivery, flow control and process subsystems.
Supplies membranes and filtration materials used in ultrapure applications.
Supplies filtration and water purification technologies used in high-purity applications.
Builds the gas and chemical delivery subsystems that the equipment makers put inside their own tools.
Supplies the other half of that outsourced subsystem market, plus the cleaning services the parts come back for.
Builds and runs the ultrapure water plants a fab cannot operate a single shift without.
Supplies competing ultrapure water and chemical recycling systems to the same fabs.
Each page explains one technology in plain language, states what it depends on, and names companies by what they supply at that step. Company roles are described qualitatively and deliberately carry no market shares, revenue figures or rankings — those change faster than an explainer can, and a stale number is worse than none. Ticker links point at company pages on this site and are provided for reference only.
Nothing here is investment advice, a recommendation, or a forecast. A company named on a page about a technology is not thereby a good investment, and the chokepoints described are structural facts about supply chains rather than predictions about prices. Technology moves; where a page describes something as unresolved or in development, that was true when it was written.
Plutux is not an investment adviser. Market data and AI-generated analysis are for information and education only, not investment advice. Disclaimer