Equipment & consumables · United States of America
KLA
KLAC US Work there, own it, buy from it ↓
Process control and metrology. Holds none of the How this is computedCount of rows in the bottleneck corpus: every material plus every non-material chokepoint.Method →Code → bottlenecks tracked here; listed as context for its step of the chain.
Why graded so · You cannot yield what you cannot measure, and few can measure at this scale.
Role cited from kla.com ↗. The grade is this project’s judgement. Report an error
01What it rests on, and what rests on it
Sells into
- Leading-edge foundry capacity
“For the fiscal years ended June 30, 2026, 2025 and 2024, the following customers each accounted for more than 10% of total revenues, primarily in the Semiconductor Process Control segment:”
sec.gov · primary source · The table under this sentence names Taiwan Semiconductor Manufacturing Company Limited in all three years.
- High-bandwidth memory stacking yield
“Our semiconductor customers generally operate in one or both of the major semiconductor device manufacturing markets: memory and foundry/logic.”
sec.gov · primary source · Memory in general. The 10-K does not mention HBM.
- Advanced packaging capacity
“Increasing complexity and value of semiconductor packages, particularly for AI and HPC applications, is also driving significant growth in our advanced packaging business.”
sec.gov · primary source · KLA’s own advanced packaging business.
A recorded dependency is a sentence, not a share, a volume or a contract. Walk it on a portfolio →
02SEC filings
- SEC 10-K6 AugAnnual report ↗
- SEC 8-K6 AugOther events ↗
- SEC 8-K28 JulResults of operations ↗
The company’s own filings, from SEC EDGAR, fetched hourly. Substrata has not judged their effect on any bottleneck.
03Others at the same step of the chain
- ASMLEUV and DUV lithography systemsChokepoint
- Carl Zeiss SMTEUV projection opticsChokepoint
- TrumpfEUV plasma-source lasersChokepoint
- Applied MaterialsDeposition, etch and process toolsConcentrated
- Lam ResearchEtch and depositionConcentrated
- Tokyo ElectronCoaters, developers, etchConcentrated
- ASM InternationalAtomic layer depositionConcentrated
- JSRPhotoresistsChokepoint
- Tokyo Ohka KogyoPhotoresists and process chemicalsChokepoint
- Shin-Etsu ChemicalPhotoresists, masks and siliconesChokepoint
- NikonLithography systemsCompetitive
- CanonLithography and nanoimprintCompetitive
04Ways to take part
Not investment advice. This says how the public can reach a company — a job, its shares, its products — not whether anyone should. It takes no account of anyone’s circumstances, and a company holding a chokepoint is not a reason to own it. What this is not
- Work there
- It publishes its roles on its own careers page.Official careers page ↗
- Own part of it
- Its shares trade publicly as KLAC US, bought and sold through a broker that reaches that exchange.KLAC US listing record ↗Its SEC filings
- Buy from it
- What it does in the chain: Process control and metrology. At this depth of the chain most sales are to other businesses, under contract. Its own page describes what it offers.Its own page ↗
05Hiring
Its roles are published on its own site, which Substrata links rather than reads. Official careers page ↗
06What this holds up
- Software scaffoldone turn: Minutes
sells into Leading-edge foundry capacity, which gates it.
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 · this join is primary source
- Firmware and programmable logicone turn: Minutes to hours
sells into Leading-edge foundry capacity, which gates it.
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 · this join is primary source
- Frontier training runone turn: Weeks to months
sells into Leading-edge foundry capacity, which gates it.
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 · this join is primary source
- Software scaffoldone turn: Minutes
sells into High-bandwidth memory stacking yield, which gates it.
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 · this join is primary source
- Frontier training runone turn: Weeks to months
sells into High-bandwidth memory stacking yield, which gates it.
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 · this join is primary source
- Software scaffoldone turn: Minutes
sells into Advanced packaging capacity, which gates it.
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 · this join is primary source
- Frontier training runone turn: Weeks to months
sells into Advanced packaging capacity, which gates it.
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 · this join is primary source
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.
07Sources
- kla.com ↗ — its role in the chain: Process control and metrology
Discussion
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