Process control / inspection-metrology monopoly — yield management for advanced chips
AI exposure 41% — derived from reported segment revenue, not asserted.
Silicon Layer → Semiconductor Equipment · figures rebased to FQ4 FY2026, reported 2026-07-28
Wafer/reticle inspection + metrology systems (yield management) — dominant leads 2 businesses in this sub-tier that together are 100% of revenue, so Semiconductor Equipment is effectively the whole company rather than one leg of it.
KLA ($3.66B Q4 FY2026, +15% YoY, +7% sequential; FY2026 $13.58B). Semiconductor Process Control 89% ($3,257M, +13%) = primary B1 Semiconductor Equipment — wafer and reticle inspection and metrology, with foundry and logic at 79% of system revenue and memory 21% (DRAM about 90% of that); Specialty Semiconductor plus PCB, display and component inspection 11%. Services revenue of $820M (+17%) is a cross-cutting figure spanning both segments and is NOT added into the 100. Advanced packaging revenue rose about 70% and KLA lifted its 2026 WFE outlook to $150B.
Moat. Near-monopoly in process-control (inspection/metrology) — yield is everything at advanced nodes, and KLA has no real competitor at the leading edge.
Bottleneck / pricing power. High pricing power — no rival at the leading edge of inspection and metrology — compounded by a service annuity across >57,000 installed tools at 4,000+ sites, ~95% renewal, $820M in FQ4 FY2026. The binding constraints are external rather than competitive: China was ~34% of revenue with export controls already quantified at a $300-350M CY2026 headwind, and DRAM pricing is a gross-margin drag the CFO expects to persist through 2027.
Role in the AI stack. The yield/process-control layer — makes advanced-node manufacturing economical.
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