Taiwan Semiconductor (TSM)

Leading-edge foundry (TSMC) — the sole volume manufacturer of advanced AI silicon + CoWoS packaging

AI exposure 32% — derived from reported segment revenue, not asserted.

Deep-dive research

TSMC: The Toll Booth Is Raising Its Price — a single-company deep dive with its full slide deck, published on Frontier Macro & Markets, 2026-10-19.

Where it sits

Silicon Layer → Foundry Services · figures rebased to Q3 2026, reported 2026-10-15

Leading-edge foundry for AI accelerators, data-center CPUs/GPUs… leads 3 businesses in this sub-tier that together are 100% of revenue, so Foundry Services is effectively the whole company rather than one leg of it.

Reported segments

High Performance Computing (HPC) — 68% of revenue
Smartphone — 21% of revenue
IoT + Automotive + DCE — 11% of revenue

TSMC (US$46.72B Q3 2026, +41.2% YoY in USD; FY2026 guided ~+44% in USD) — world's leading pure-play foundry. By platform (Q3 2026): HPC 68% of revenue (+22% QoQ — AI/data-center; manufactures NVDA/AMD/AAPL/hyperscaler chips, CoWoS advanced packaging = AI-critical bottleneck, primary) + Smartphone 21% (+10% QoQ) + IoT 4% / Automotive 4% / DCE 1% / Others 2%. By node: 2nm 8%, 3nm 33%, 5nm 28%, 7nm 10% of wafer revenue (79% at 7nm and below). Primary B1 Foundry Services. The indispensable AI-chip manufacturer; customers NVDA/AMD/AAPL/AVGO/etc; supplied by ASML/AMAT/LRCX/KLAC.

How the 32% is built

High Performance Computing (HPC) — 68% of revenue × 45% AI-driven (estimate). Mgmt's last quantification was AI accelerators ~high-teens% of FY2025 revenue; HPC has since gone from ~51% to 68% of revenue (+22% QoQ in Q3 2026) on a base growing ~44%, and Wei now expects the AI-accelerator CAGR to beat its mid-to-high-50s% guide — consistent with AI accelerators at roughly 45% of the HPC…
Smartphone — 21% of revenue × 5% AI-driven (estimate). Estimate — TSMC does not break out edge-AI silicon; on-device NPU area is a small slice of mobile SoC wafer value, and Q3's +10% QoQ was the seasonal flagship ramp rather than an AI-driven line
IoT + Automotive + DCE — 11% of revenue × 5% AI-driven (estimate). Estimate — IoT 4% / Automotive 4% / DCE 1% / Others 2% of Q3 2026 revenue; marginal AI content, no company quantification

Investment read

Moat. Process-technology lead (2-3nm) + CoWoS advanced-packaging monopoly. The only foundry that can make leading-edge AI silicon at volume. Years ahead of Samsung/Intel.

Bottleneck / pricing power. The hardest bottleneck in the stack — CoWoS packaging capacity literally gates how many AI accelerators exist, and it remains customers' top packaging choice: TSMC is producing 5x-reticle packages, developing 9x and 14x, and buying interposers from GlobalFoundries to ease a slight back-end shortage. Everyone (NVDA/AMD/AVGO/hyperscalers) waits in line.

Role in the AI stack. The manufacturing keystone — converts designs into physical AI silicon; no viable substitute at leading edge.

Connected companies

ASML Holding (ASML) — TSM is supplied by: EUV/DUV lithography systems
Lam Research (LRCX) — TSM is supplied by: etch & deposition
Applied Materials (AMAT) — TSM is supplied by: deposition/CMP/ion implant
KLA Corporation (KLAC) — TSM is supplied by: process control / inspection
Teradyne (TER) — TSM is supplied by: ATE test systems
NVIDIA (NVDA) — TSM supplies: leading-edge wafer fab (GPUs)
Advanced Micro Devices (AMD) — TSM supplies: wafer fab (CPU/GPU)
Broadcom (AVGO) — TSM supplies: wafer fab (ASICs)
Marvell Technology (MRVL) — TSM supplies: wafer fab (custom silicon)
Qualcomm (QCOM) — TSM supplies: wafer fab (mobile SoC)
Monolithic Power Systems (MPWR) — TSM supplies: foundry wafers for power-management ICs (fab-lite model)
Analog Devices (ADI) — TSM supplies: foundry capacity for leading-edge analog/mixed-signal
Amkor Technology (AMKR) — TSM supplies: foundry wafers flow to Amkor for assembly/packaging
Keysight Technologies (KEYS) — TSM is supplied by: wafer-level + RF characterization test (TSMC partnership)

Others in Foundry Services

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