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L3 · FabsFoundry⬦ ChokepointHsinchu, TaiwanTSM

TSMC (Taiwan Semiconductor Manufacturing Company)

The world's dominant leading-edge pure-play foundry

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TSMC is the single most critical node in the AI hardware supply chain, fabricating essentially all leading-edge accelerators (Nvidia Blackwell/Rubin, AMD Instinct, Google TPU, Broadcom/Marvell ASICs). It holds ~90%+ share of sub-5nm production and is ramping N3 (3nm) at high volume while beginning N2 (2nm, gate-all-around nanosheet) volume production in H2 2025. Its Arizona fabs (Fab 21) are producing N4/N5 in volume with N3 and N2 planned, though advanced CoWoS packaging still concentrates in Taiwan.

Leading-edge foundry share

~90%+ of sub-5nm

Leading node (2025-26)

N3 volume; N2 ramping H2 2025

Arizona investment

$165B total committed, Fab 21 producing N4

Key AI customers

Nvidia, AMD, Apple, Google, Broadcom

How it fits the stack

TSMC (Taiwan Semiconductor Manufacturing Company) with what it depends on (above) and what it feeds (below). The figure renders as a crawlable diagram and upgrades to an interactive 3D graph as it scrolls into view.

suppliesdepends onsuppliessuppliesdepends onsuppliessuppliessuppliesdepends ondepends ondepends onsuppliesdepends ondepends onpartners withpartners withpartners withpartners withTSMC (TaiwanSemiconductorManufacturing Company)FabsAdvantestApplied MaterialsASM InternationalchokepointASML HoldingchokepointCobaltchokepointAMDAmpere ComputingAWS Trainium /InferentiaBroadcomchokepointCerebras SystemsAlchip / GUC (ASICdesign services)Amkor TechnologyArm Holdingsimec
TSMC (Taiwan Semiconductor Manufacturing Company)Depends on ↑Feeds ↓Related

TSMC (Taiwan Semiconductor Manufacturing Company) in the AI stack. TSMC (Taiwan Semiconductor Manufacturing Company) with its immediate upstream dependencies (top) and downstream dependents (bottom) in the AI value chain. Hover a node in 3D, or read the full relationships below.

Graph data (text) — 15 entities, 18 relationships
  • TSMC (Taiwan Semiconductor Manufacturing Company) —supplies→ Advantest
  • TSMC (Taiwan Semiconductor Manufacturing Company) —depends on→ Applied Materials
  • TSMC (Taiwan Semiconductor Manufacturing Company) —supplies→ Applied Materials
  • TSMC (Taiwan Semiconductor Manufacturing Company) —supplies→ ASM International
  • TSMC (Taiwan Semiconductor Manufacturing Company) —depends on→ ASML Holding
  • TSMC (Taiwan Semiconductor Manufacturing Company) —supplies→ ASML Holding
  • TSMC (Taiwan Semiconductor Manufacturing Company) —supplies→ Cobalt
  • AMD —supplies→ TSMC (Taiwan Semiconductor Manufacturing Company)
  • AMD —depends on→ TSMC (Taiwan Semiconductor Manufacturing Company)
  • Ampere Computing —depends on→ TSMC (Taiwan Semiconductor Manufacturing Company)
  • AWS Trainium / Inferentia —depends on→ TSMC (Taiwan Semiconductor Manufacturing Company)
  • Broadcom —supplies→ TSMC (Taiwan Semiconductor Manufacturing Company)
  • Broadcom —depends on→ TSMC (Taiwan Semiconductor Manufacturing Company)
  • Cerebras Systems —depends on→ TSMC (Taiwan Semiconductor Manufacturing Company)
  • TSMC (Taiwan Semiconductor Manufacturing Company) —partners with→ Alchip / GUC (ASIC design services)
  • TSMC (Taiwan Semiconductor Manufacturing Company) —partners with→ Amkor Technology
  • TSMC (Taiwan Semiconductor Manufacturing Company) —partners with→ Arm Holdings
  • TSMC (Taiwan Semiconductor Manufacturing Company) —partners with→ imec

Depends on ↑ · 35

suppliesAdvantestV93000 SoC test for advanced acceleratorsdepends onApplied MaterialsDeposition/etch/CMP tools for leading-edge processingsuppliesApplied MaterialsDeposition/etch/CMP tools for leading-edge logicsuppliesASM International⬦ALD tools for GAA nodesdepends onASML Holding⬦Requires ASML EUV/High-NA and DUV scanners for N3/N2 patterningsuppliesASML Holding⬦TSMC is ASML's largest EUV customer; lead partner for High-NAsuppliesCobalt⬦Advanced-node interconnect/liner metalsuppliesCopperDamascene on-chip interconnect wiringsuppliesEbara CorporationCMP + Cu plating + vacuum pumps to leading-edge fabsdepends onElectricity Grid & Utilities⬦Leading-edge fabs are extreme electricity consumersusesEUV Lithography (13.5nm)⬦Uses EUV lithography for critical layers at N5/N3/N2suppliesFujimi IncorporatedCMP slurry consumable for logic planarizationsuppliesGallium⬦GaN/GaAs compound-semi and power electronics feedstocksuppliesGermanium⬦SiGe and optical device materialdepends onKLA CorporationProcess control, inspection and metrology toolssuppliesKLA CorporationInspection/metrology for defect and yield control at leading edgedepends onLam ResearchEtch and deposition equipment for advanced logicsuppliesLam ResearchEtch/deposition tools for logic nodessuppliesLasertec⬦EUV mask qualification for TSMC leading edgesourcesPhotoresist⬦Requires EUV/DUV photoresists (largely Japanese-supplied)suppliesPhotoresist⬦EUV/DUV resists for advanced nodessuppliesResonac (CMP slurry & packaging materials)⬦CMP slurry + die-attach films to fabssuppliesSCREEN HoldingsSingle-wafer cleaning tools across the process flowdepends onSemiconductor skilled laborskilled Taiwanese fab workforceused bySiemens EDA (Mentor)Calibre is the DRC/physical-verification sign-off standard at foundriessourcesSilicon Wafers⬦Consumes 300mm prime silicon wafers as substratesuppliesSilicon Wafers⬦300mm prime/epi wafers for leading-edge logicsuppliesSpecialty & Electronic GasesEtch/deposition/lithography gases for fabsdepends onTaiwan (geopolitical concentration risk)⬦Bulk of leading-edge and CoWoS capacity concentrated in TaiwanhostsTaiwan (geopolitical concentration risk)⬦home of TSMC; ~90%+ of <5nm logic on-islanddepends onTaiwan Power & Water Constraint (Taipower)⬦Fabs gated by grid and water supplysuppliesTeradyneATE for SoC and AI/networking silicondepends onTokyo Electron (TEL)Coater/developer (EUV track) and etch toolssuppliesTokyo Electron (TEL)Coat/develop track cells paired with ASML litho, plus etch/cleansuppliesTungsten⬦Interconnect/contact metallization

Feeds ↓ · 32

suppliesAMDFabricates AMD Instinct MI300/MI350 accelerators on N5/N3depends onAMDInstinct MI300/MI350 chiplets fabbed at TSMC N5/N3depends onAmpere ComputingAmpereOne fabbed at TSMCdepends onAWS Trainium / InferentiaTrainium/Inferentia fabbed at TSMCsuppliesBroadcom⬦Fabricates Broadcom custom AI ASICs (e.g. Google TPU) and networking silicondepends onBroadcom⬦Fabless; custom ASICs fabbed at TSMCdepends onCerebras SystemsWSE-3 wafer-scale engine fabbed at TSMCdepends onCo-packaged optics & silicon photonicsTSMC COUPE silicon photonicsdepends onEtchedSohu transformer-ASIC fabbed at TSMCsuppliesGoogle Cloud (GCP)Fabricates Google TPU silicon (via Broadcom/MediaTek design)depends onGoogle TPUTPU fabbed at TSMCusesHBM4⬦HBM4 logic base die is foundry-fabbed, tightening SK Hynix–TSMC–Nvidia couplingdepends onMarvell TechnologyFabless; custom ASICs fabbed at TSMCdepends onMediaTekFabs designs on TSMC nodesdepends onMeta MTIAMTIA fabbed at TSMCdepends onMicrosoft MaiaMaia fabbed at TSMCsuppliesNvidia⬦Fabricates Nvidia Blackwell (N4/4NP) and Rubin (N3) GPUsdepends onNvidia⬦All cloud GPUs ultimately fabbed by TSMC on N4/N3 with CoWoS packagingmanufacturesNvidia Data-Center GPU (Blackwell/Rubin)⬦Nvidia GPUs fabbed by TSMC on leading-edge nodesdepends onNXP SemiconductorsFoundry capacity for i.MX/S32 processorssuppliesPreferred Networks (PFN)MN-Core accelerators fabbed at TSMCdepends onRenesas ElectronicsLeading-edge automotive/edge-AI dies at TSMCdepends onSambaNova SystemsRDU/SN40L fabbed at TSMCdepends onSoftBank Compute / Izanagi & Arm AIIzanagi AI-chip effort would fab at TSMCdepends onSony Semiconductor (CMOS Image Sensors)⬦Logic layer of stacked sensors fabbed at TSMCdepends onTesla DojoDojo D1 fabbed at TSMC (program wound down 2025)hostsTSMC Advanced Packaging Fabs (AP7/Chiayi)⬦Operates dedicated AP fabsmanufacturesTSMC CoWoS (Chip-on-Wafer-on-Substrate)⬦Foundry side dependency: CoWoS advanced packaging integrates HBM with logichostsTSMC Fab 25 / Baoshan (N2 ramp)⬦N2/A16 leading-edge volume siteshostsTSMC Japan (JASM Kumamoto)Kumamoto JV fabmanufacturesTSMC N2 (2nm, GAA)⬦N2 is TSMC's first GAA node, ramping 2025-2026depends onTSMC N3 (3nm)⬦N3 is TSMC's current leading node

Context — capital, rivals, policy · · 14

partners withAlchip / GUC (ASIC design services)ASIC design-service into TSMC/CoWoSpartners withAmkor TechnologyProvides US OSAT packaging complementing TSMC Arizona fabspartners withArm Holdings⬦Fabricates Arm-architecture SoCs including datacenter CPUspartners withimec⬦Co-develops process nodes at imecpartners withKYEC (King Yuan Electronics)⬦Test partner in TSMC-centric flowcompetes withRapidusAims to diversify leading-edge foundry beyond TSMCpartners withSK Hynix⬦TSMC fabs the HBM4 logic base die for SK Hynixinvests inAI capex super-cycle (hyperscaler spend)⬦Capex flows down to foundry capacityinvests inCHIPS and Science Act~$6.6B for TSMC Arizona leading-edge fabsinvests inEU Chips Actsubsidizes TSMC Dresden JV (ESMC)invests inJapan (METI / Rapidus)subsidizes TSMC Kumamoto (JASM) fabsrestrictsTaiwan Strait / geopolitical flashpoint⬦blockade/conflict would take out leading-edge foundrydesignsTSMC CoWoS (Chip-on-Wafer-on-Substrate)⬦TSMC owns and operates the CoWoS 2.5D packaging platformdesignsTSMC SoIC (System-on-Integrated-Chips)TSMC owns the SoIC 3D hybrid-bonding platform
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