Equipment & consumables · United States of America

Lam Research

LRCX US Work there, own it, buy from it ↓

Etch and deposition. 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.

Bottlenecks held0 of 33none of the tracked rows Directory gradeConcentrateda judgement, not a sourced fact

Why graded so · High-aspect-ratio etch for 3D memory is a narrow specialism.

Role cited from lamresearch.com ↗. The grade is this project’s judgement. Report an error

01What it rests on, and what rests on it

each row quotes the page it rests on

Sells into

Leading-edge foundry capacity
“Our customer base includes leading semiconductor memory, foundry, and integrated device manufacturers ("IDMs") that make products such as non-volatile memory ("NVM"), dynamic random-access memory ("DRAM"), and logic devices.”
sec.gov · primary source · Names the market (foundry, logic), not the leading edge only.
High-bandwidth memory stacking yield
“Our customer base includes leading semiconductor memory, foundry, and integrated device manufacturers ("IDMs") that make products such as non-volatile memory ("NVM"), dynamic random-access memory ("DRAM"), and logic devices.”
sec.gov · primary source · Names DRAM, not HBM stacking specifically.

A recorded dependency is a sentence, not a share, a volume or a contract. Walk it on a portfolio →

02SEC filings

3 most recent, from SEC EDGAR

SEC 8-K27 AugDirector or officer change ↗
SEC 10-K7 AugAnnual report ↗
SEC 8-K29 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

directory rows · grades are judgements

ASMLEUV and DUV lithography systemsChokepoint
Carl Zeiss SMTEUV projection opticsChokepoint
TrumpfEUV plasma-source lasersChokepoint
Applied MaterialsDeposition, etch and process toolsConcentrated
Tokyo ElectronCoaters, developers, etchConcentrated
KLAProcess control and metrologyConcentrated
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

how to reach it, not whether to

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 LRCX US, bought and sold through a broker that reaches that exchange.LRCX US listing record ↗Its SEC filings
Buy from it: What it does in the chain: Etch and deposition. 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

official careers page

Its roles are published on its own site, which Substrata links rather than reads. Official careers page ↗

06What this holds up

5 loops

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

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

1 cited

lamresearch.com ↗ — its role in the chain: Etch and deposition

Discussion

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