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Material · Lithography & Optics · ZA RU DE GB BE JP

Ruthenium, sputtering and ALD grade

A rare metal being adopted for the wiring inside advanced chips. It comes out of the ground only alongside platinum.

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Severity
How this is computedSum of four judged scores, each 0–3: concentration + substitution + lead time + inelasticity.Method →Code →
How hard it binds, 0 to 12
When it bites
Within 2 years
judged 2026-09-15
Evidence
Verified
8 maker rows

01Key numbers

dated, each linked to its source

Every series on every bottleneck — filter, compare and download.

02Why it holds things up

Ruthenium is a by-product of PGM mining, so supply is set by platinum and palladium economics rather than by demand for ruthenium. Refining and target fabrication are separately concentrated.

Grade that ships · 4N ruthenium, targets or precursor feed, PGM-refiner traceable.

Part of the process · Materials & tools, which takes years, per qualification to loosen once somebody decides to.

03Severity

judged 2026-09-15 · a judgement, not a measurement

How this is computedSum of four judged scores, each 0–3: concentration + substitution + lead time + inelasticity.Method →Code → / 12

How few suppliers qualify
Estimate, not a measurementA by-product of South African and Russian PGM mining, so supply cannot answer demand. Ruthenium interconnect at leading nodes is the demand shock.By Substrata, open to challenge · 2026-09-15 / 3
How hard to replace
Estimate, not a measurementA by-product of South African and Russian PGM mining, so supply cannot answer demand. Ruthenium interconnect at leading nodes is the demand shock.By Substrata, open to challenge · 2026-09-15 / 3
Decision to new capacity
Estimate, not a measurementA by-product of South African and Russian PGM mining, so supply cannot answer demand. Ruthenium interconnect at leading nodes is the demand shock.By Substrata, open to challenge · 2026-09-15 / 3
Can the buyer walk away
Estimate, not a measurementA by-product of South African and Russian PGM mining, so supply cannot answer demand. Ruthenium interconnect at leading nodes is the demand shock.By Substrata, open to challenge · 2026-09-15 / 3

A by-product of South African and Russian PGM mining, so supply cannot answer demand. Ruthenium interconnect at leading nodes is the demand shock.

04Who makes it

8 verified of 8 rows

05Rules that govern it

All policy →

06What would remove it

No candidate relief has been written up for this one yet.

07Science pipeline

22 papers, preprints and grants collected, unreviewed
  1. Research21 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
  2. Lab1 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
  3. Pilot0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
  4. Early0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)
  5. Scale0 (Computed: Items per stage = papers, preprints and grants collected for the bottleneck whose relevance score is 2 or more, placed on a stage by the rule in lib/science.ts; judgements are counted separately.)

judged, with a citation claimed, no citationNumber: papers, preprints and grants the feeds collected — unreviewed

The full pipeline, by stage →

08What has happened

1 dated
  1. 2026-09-14
    TightensPolicyEU

    The EU updates its dual-use control list to add atomic layer deposition equipment for molybdenum and ruthenium.

    policy.trade.ec.europa.eu ↗official source

    The sentence that says so

    “Specifically, this update of the EU control list provides for the addition of new dual-use items, including: Semiconductor manufacturing and testing equipment and materials (e.g. Atomic Layer Deposition equipment for molybdenum and Ruthenium, equipment for the development and the inspection of Extreme Ultra-Violet masks and reticles, and single wafer cleaning equipment)”

All events →

09What this holds up

2 loops
  • Siliconone turn: Months

    Worst judgement on this loop: How this is computedThe highest severity score among the bottlenecks recorded as gates on the loop.Method →Code →, judged 2026-09-15

  • Worst judgement on this loop: How this is computedThe highest severity score among the bottlenecks recorded as gates on the loop.Method →Code →, judged 2026-09-15

A loop is one design, build and measure turn. Severity is a dated judgement on a 0–12 scale, not a measurement, and the judgements are not added together — the figure shown is the worst single one.

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