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Services · the new software  ·  Research Note №1 · Memo 060 of 185 LRCX  ·  ← Overview

LRCX Lam Research Corporation

Etch & deposition; essential for advanced chip manufacturing at scale.

Positive Rank 60 · Nasdaq-100 constituent
Last price
$267.60
Market cap
$336.1B
As of
18 April 2026

Live quote sourced from Yahoo Finance. Prices cited in narrative below reflect the original memo date and may be stale.


Scores · adapted framework

Enabler
9 / 10
Autopilot adoption
5 / 10
Disruption risk
4 / 10
Efficiency upside
6 / 10

The Sequoia matrix

Intelligence / Judgment
Not applicableLam tools etch and deposit; no judgment function.
Copilot posture
ModerateProcess control tools guide fab engineers on etch/deposition parameters.
Autopilot posture
LimitedAutonomous process control exists; human engineers remain gatekeepers.
Data moat
Very StrongProcess signatures across thousands of runs inform model accuracy; defensible dataset.
Execution layer
LimitedLam provides equipment; foundries execute process control.

The memo

State of play · LRCX
Trading ~$243 on April 18, 2026. Market cap ~$130B. Q2 FY26 (ended March 30 2026) revenue $4.09B (+18% YoY); gross margin 53% (strong). FY26 revenue guidance $16.5–17.5B (18–25% growth). Backlog remains elevated. Next print: Q3 FY26 earnings late May 2026.

Thesis angle

Lam manufactures etch and deposition equipment for semiconductor wafers. These tools are essential for advanced node production (5nm, 3nm, 2nm) and are critical bottlenecks in foundry capacity. As AI demand drives chip manufacturing, Lam's tools enable production. Like KLAC, Lam is a high-enabler for autopilot-enabling chips.

The framing

LRCX is the co-leader with AMAT in foundry etch and deposition equipment. As advanced nodes scale and process complexity increases, LRCX tools become essential for 3D pattern control, high-aspect-ratio etch, and advanced deposition. The company is a pure beneficiary of the AI capex wave: more foundry capex → more etch/deposition tool orders → more LRCX revenue.

Two forces, opposite directions

Tailwind · advanced nodes require increasingly complex etch and deposition

3D NAND (stacking memory layers), chiplet packaging (bonding dies), and extreme aspect-ratio patterning at 3nm/2nm all require cutting-edge etch and deposition equipment. LRCX is a primary supplier for these processes. As foundry capex accelerates (driven by AI demand), LRCX captures disproportionate share of etch/deposition budgets. The companys plasma etch tools are differentiated, with switching costs and high switching costs.

Headwind · cyclicality, competition from AMAT, and TAM limits
  • Foundry capex cycles create lumpy demand; a slowdown would directly impact LRCX
  • AMAT is a credible competitor in deposition and etch; LRCX market share is not unassailable
  • Customer concentration: TSMC and Samsung are 70%+ of revenues
  • Geopolitical restrictions on China sales limit addressable market
  • Tokyo Electron has strong legacy in etch/deposition in some geographies
LRCX is essential but not a monopoly; competitive intensity and capex cyclicality are real headwinds.

LRCX in the foundry stack

ProcessLRCX PositionImportance for Advanced NodesCompetition
Plasma etch (critical patterns)Market leader, 50%+ shareCore (extreme aspect ratios at 3nm)AMAT, Tokyo Electron
Atomic-layer deposition (ALD)Strong positionCritical for 2nm and smallerAMAT, Tokyo Electron
High-aspect-ratio etch (HARE)LeaderEssential for 3D NAND stackingAMAT competition rising
Selective depositionGrowing shareNew process node requirementEarly-stage competition
Advanced packaging (chiplet bonding)Expanding segmentModerate importanceEmerging competition
LRCXs core competency is plasma etch, where it is the leader. Deposition is growing but more commoditized. The company is competitive in advanced nodes, but AMAT is encroaching.

Bull case

Plasma etch is a non-negotiable tool for 3nm and below.

LRCX is the market leader in plasma etch with 50%+ share. Foundries cannot transition to advanced nodes without LRCX tools. Demand grows with every node transition.

High-aspect-ratio etch is a defensible niche with 30%+ margins.

HARE is used in 3D NAND and advanced packaging (chiplets). This segment is growing 20%+ CAGR and is less commoditized than standard etch.

Advanced node transitions create refresh cycles.

Every major node transition (3nm, 2nm) requires new LRCX equipment. As AI demand drives advanced-node scaling, LRCX captures cyclical refresh orders.

Selective deposition is an emerging high-margin opportunity.

Newer process nodes require atomic-precision deposition (growing margins to 50%+). LRCX is gaining share in this emerging market.

Bear case

Foundry capex cycles are severe.

LRCX revenue swings 30%+ year-to-year with capex. If hyperscaler capex softens, LRCX is directly impacted.

AMAT is a credible competitor and is gaining share in deposition.

AMATs breadth (deposition, etch, inspection) gives it scale advantages. LRCXs pure-play etch position is under pressure as deposition becomes more important at advanced nodes.

Customer concentration is extreme.

TSMC and Samsung are 70%+ of revenues. Any shift in their capex priorities directly impacts LRCX. Diversification to Intel or new foundries is slow.

Geopolitical fragmentation limits TAM.

China export controls reduce addressable market. Foundry capex in mainland China is off-limits for advanced etch tools.

Sequoia-framework fit

LRCX is a core beneficiary of foundry capex driven by AI demand. The company is the leader in plasma etch, a non-negotiable tool for advanced nodes. However, LRCX is smaller in scale than ASML and more exposed to competition from AMAT. The verdict is Buy with execution risk: if foundry capex accelerates as the thesis predicts, LRCX is a 20%+ growth compounder with 50%+ margins. But if capex cycles trough, or AMAT gains etch share, LRCX compresses. Current backlog and 18–25% guidance suggest the upside scenario is playing out.

Investor takeaway

Lam is essential for advanced chip manufacturing; strong business, but indirect thesis benefit.

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