Macroplane › Investment Theses › Process-control duopoly (~50% share)

Process-control duopoly (~50% share)

AI supply-chain thesis — mapping bottlenecks, focus companies, and supply-chain exposure for investors.

**Bottleneck theme:** Lithography & Fab Tools **Focus:** $KLAC — KLA CORP KLA sits at the top of the process-control food chain — wafer inspection, reticle inspection, e-beam metrology, and overlay/critical-dimension metrology — with roughly 50% global share of the process-control segment. It is effectively a near-monopoly at the most advanced nodes (N5 / N3 / N2 / sub-2nm) and at advanced packaging, where the smallest defect on a 12nm-pitch HBM via or a CoWoS bonding interface can scrap multi-thousand-dollar dies. Camtek ($CAMT) and Onto Innovation ($ONTO) compete in advanced packaging metrology specifically — but KLA sits as the umbrella above both, owning the front-end logic and DRAM process-control budget that dwarfs the packaging segment. The investment case is mid-cycle compounding plus secular complexity expansion: more layers, smaller features, and more process steps all require more inspection and metrology per wafer-out. KLA has the highest gross margin in WFE (~62%+) and consistently delivers the best operating leverage. Risks: China revenue exposure under export-control headline risk, customer concentration (TSMC + Samsung + Intel + Micron drive most demand), and a multiple that already prices a lot of the advantage.

Focus companies in this thesis (1)

  • KLA CORP (KLAC)

Supply-chain categories covered

  • Chip Design & IP — Design of semiconductors, GPUs, CPUs, networking chips, and IP cores critical for AI data centers.
  • EDA Software — Electronic design automation tools for chip design and verification
  • Foundry / Fab Services — Contract semiconductor manufacturing — wafer fabrication for fabless and partially-fabless customers, spanning leading-edge logic, mature-node analog/mixed-signal, RF, and specialty processes (BCD, BiCMOS, SiC, SOI).
  • Payment Processing — Card networks, payment gateways, and transaction processing
  • Silicon Wafers — Raw silicon wafer manufacturing and supply
  • Semiconductor Test Equipment — ATE (automatic test equipment) for chip testing (Teradyne, Advantest)
  • Advanced Packaging — 2.5D/3D packaging, CoWoS, chiplets, fan-out wafer-level packaging
  • Wafer Inspection & Metrology — Defect inspection, CD-SEM, overlay measurement tools
  • Metrology Equipment — Inspection, measurement, and process control tools.
  • Lithography & Fab Tools — Investment-thesis bucket from bottlenecks.app: Lithography & Fab Tools
  • HBM — High Bandwidth Memory — 3D-stacked DRAM (HBM2E/HBM3/HBM3E/HBM4) connected via through-silicon vias, delivering 1+ TB/s of bandwidth per stack. Co-packaged with GPUs, TPUs, and custom AI accelerators for datacenter AI training/inference and HPC workloads.

Thesis milestones & bottleneck markers

  • $KLAC Q4 earnings — KLAC
  • New metrology product launch — KLAC — Next-gen inspection tool announcement
  • TSMC capex peak — TSM — Annual capex inflection for advanced nodes
  • Process control market share — KLAC

Related baskets

  • Lithography & Fab Tools

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Frequently asked questions

What is the Process-control duopoly (~50% share) thesis about?

**Bottleneck theme:** Lithography & Fab Tools **Focus:** $KLAC — KLA CORP KLA sits at the top of the process-control food chain — wafer inspection, reticle inspection, e-beam metrology, and overlay/critical-dimension metrology — with roughly 50% global share of the process-control segment. It is effectively a near-monopoly at the most advanced nodes (N5 / N3 / N2 / sub-2nm) and at advanced packaging, where the smallest defect on a 12nm-pitch HBM via or a CoWoS bonding interface can scrap multi-thousand-dollar dies. Camtek ($CAMT) and Onto Innovation ($ONTO) compete in advanced packaging metrology specifically — but KLA sits as the umbrella above both, owning the front-end logic and DRAM process-control budget that dwarfs the packaging segment. The investment case is mid-cycle compounding plus secular complexity expansion: more layers, smaller features, and more process steps all require more inspection and metrology per wafer-out. KLA has the highest gross margin in WFE (~62%+) and consistently delivers the best operating leverage. Risks: China revenue exposure under export-control headline risk, customer concentration (TSMC + Samsung + Intel + Micron drive most demand), and a multiple that already prices a lot of the advantage.

Which companies does the Process-control duopoly (~50% share) thesis focus on?

The Process-control duopoly (~50% share) thesis on Macroplane focuses on KLA CORP (KLAC).

Which supply-chain categories does the Process-control duopoly (~50% share) thesis cover?

It covers Chip Design & IP, EDA Software, Foundry / Fab Services, Payment Processing, Silicon Wafers, Semiconductor Test Equipment, Advanced Packaging, Wafer Inspection & Metrology, Metrology Equipment, Lithography & Fab Tools, and 1 more.

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