Material Insights · Understanding the Material World

Fluoropolymers (PTFE, PVDF) and Semiconductors

Fabs carry their ultra-pure acids and solvents in PFA and PTFE tubing, valves, tanks and filters because nothing else resists them without shedding contaminants, so chipmaking is exposed to the EU's planned group ban on PFAS and to supplier exits such as 3M's; industry says qualifying replacements can take 5 to 25 years.

Fluoropolymers (PTFE, PVDF) (chemical) and Semiconductors (industry): 4 relationships.

How they are linked

1. Wetted parts in fab tools

Physical flow · Strong · Fluoropolymers → fab equipment and chemical systems

PFA and PTFE resist virtually all process chemicals and do not contaminate ultra-pure fluids, so they line the parts of wet etch and cleaning tools that touch chemicals; wafer-fab equipment makers rate them 5 of 5 on criticality.

  • 5 of 5 criticality for wafer-fab equipment makers (seals and liners)

Components include PFA tubing, valves, fittings, pumps, flow meters, baths and sinks, wafer baskets, tank liners, PTFE filter membranes and bulk chemical distribution systems. Fluoropolymer baths also resist breakage better than quartz, and wet benches and chemical supply systems are designed around these parts.

Enterprise types that depend on it:

  • Wafer-fab equipment makers: chemically resistant seals and liners (criticality 5 of 5)

Sources: Material Insights; Chemours (Teflon)

2. EU universal PFAS restriction

Policy · Rising · EU PFAS rules → fluoropolymer use in fabs

The EU is preparing a group-wide restriction on PFAS that covers fluoropolymers, and its scientific committees have declined to exempt fluoropolymers as a group, so each use, including chipmaking, must justify its own derogation.

  • 2 March 2026 date of ECHA's risk committee (RAC) final opinion supporting a group-wide restriction
  • 5 or 12 years standard transition periods SEAC supports for derogated uses, plus 18 months

SEAC's draft opinion favours a ban with use-specific derogations and went to consultation until 25 May 2026, with a final opinion expected by the end of 2026, after which the Commission drafts the law. The outcome matters beyond Europe because tool makers and material suppliers serve fabs worldwide from the same product lines.

Sources: Linklaters

3. Supplier exits

Shared risk · Medium · Fluoropolymer producers leaving → fab supply chains

Tightening regulation and stakeholder pressure are pushing some producers out of PFAS, which removes qualified grades that fabs and tool makers have designed in.

  • about $1.3 billion annual net sales of 3M's PFAS manufacturing business at its 2022 exit announcement
  • end of 2025 3M's target to stop making all PFAS, including fluoropolymers

3M said it would exit fluoropolymers, fluorinated fluids and PFAS additives, citing accelerating regulation. When a qualified material is withdrawn, fab and tool makers must requalify another supplier's grade, which concentrates supply among the remaining producers.

Sources: 3M

4. Slow and partial alternatives

Substitution · Weak · Non-PFAS materials can replace some fluoropolymer uses

Industry research found PFAS chemistries in chipmaking have unique properties with no drop-in substitutes, so replacing them is a long requalification effort rather than a material swap.

  • 5 to 25 years time industry estimates to qualify a non-PFAS replacement in high-volume manufacturing

The Semiconductor PFAS Consortium concluded in August 2023 that full replacement may not be possible for the most demanding uses. This is the basis for chipmakers seeking long derogations rather than accepting a fast ban.

Sources: Semiconductor Industry Association

For investors

Key learnings

  1. Fluoropolymer parts are a hard dependency for fabs, rated 5 of 5 by equipment makers, so the number of qualified suppliers matters for cost and continuity.
  2. The EU restriction's derogations, due to be settled after SEAC's final opinion expected by end-2026, decide how long fab uses stay legal.
  3. Exits such as 3M's from end-2025 shift share to the remaining fluoropolymer makers and raise requalification costs for tool makers.

What to track

  • EU PFAS restriction milestones (SEAC opinion, Commission proposal): Scope and length of semiconductor derogations (As published · ECHA, European Commission)
  • Fluoropolymer producer capacity announcements and exits: Concentration of qualified supply (Quarterly · company results and announcements)
  • High-purity PFA and PTFE prices: Cost pressure on fab equipment makers (Quarterly · industry price reports)

For policymakers

Key learnings

  1. Chipmaking has no near-term substitute for fluoropolymer wetted parts, with replacements estimated to take 5 to 25 years to qualify.
  2. EU rules will shape global fab equipment design, so India's fab programme is indirectly exposed to the PFAS decision.
  3. New fab regions, India included, will need qualified high-purity fluoropolymer parts, so local fluoropolymer makers would have to qualify separate high-purity grades to supply them.

What to track

  • EU and US PFAS rules affecting electronics: Regulatory risk for fab supply chains India depends on (Half-yearly · ECHA, US EPA)
  • Domestic fluoropolymer capacity and high-purity grades: Ability to supply Indian fabs locally (Yearly · company reports, Ministry of Chemicals and Fertilizers)

Sources

  1. Semiconductors: materials and inputs, Material Insights (2026)
  2. Protecting component purity during semiconductor wet processing, Chemours (Teflon)
  3. EU universal PFAS restriction process enters its decisive phase: SEAC draft opinion, Linklaters (2026)
  4. 3M to exit PFAS manufacturing by the end of 2025, 3M (2022)
  5. Semiconductor PFAS Consortium concludes first phase of technical research, Semiconductor Industry Association (2023)