Supply chain bottleneck analysis

Taiwan Strait blockade would halt >65% of leading-edge logic within weeks

Hualien fault zone: 2024 earthquake disrupted TSMC N3/N5 lines temporarily

Fab-grade ultrapure water supply in Taiwan strained during drought years

TSMC is sole producer of <3nm logic; Samsung holds <5% share at that node

Intel Arizona ramp-up still years from leading-edge parity

No alternate source for CoWoS advanced packaging for AI accelerators

US CHIPS Act restricts TSMC/Samsung from expanding China capacity

Dutch export controls on ASML DUV block China from catching up to 7nm

Cross-strait political deterioration raises insurance and shipping costs immediately

ASML Veldhoven campus: single manufacturing site for all EUV machines globally

Carl Zeiss SMT Oberkochen (EUV optics sole-source): located in seismically quiet region but zero backup

US fab equipment (Applied Materials, Lam, KLA) concentrated in Bay Area / Phoenix

ASML EUV backlog exceeds 2 years; one incident halts leading-edge node progress for all fabs

High-NA EUV (next-gen) also sole-sourced to ASML — no roadmap alternative

Nikon and Canon hold no EUV capability; viable only for legacy DUV nodes

BIS Entity List bars ASML, Applied Materials, Lam from selling advanced tools to Chinese fabs

Dutch government revoked ASML's DUV export license to China in 2023 under US pressure

Japan joined ASML export control regime in 2024, further isolating China's equipment supply

Design talent concentrated in US coastal metros subject to natural disaster risk

Cloud-based EDA tools create single points of infrastructure failure for design workflows

ARM architecture used in >95% of mobile processors and AI edge devices — no viable ISA alternative at scale

Synopsys and Cadence control ~85% of EDA tool market; both US-headquartered

Cadence/Synopsys EDA tools are required for tape-out at TSMC — access is a US leverage point

BIS restrictions bar Synopsys and Cadence from supplying advanced EDA to Huawei and flagged entities

SoftBank's ownership of ARM creates Japan/UK dual-jurisdiction complexity for US export rules

UK post-Brexit R&D talent friction affects ARM pipeline quality long-term

No meaningful physical infrastructure risk — EDA is software

SaaS-based EDA workflows add cloud provider concentration risk (AWS/Azure)

Synopsys + Cadence control ~85% of all silicon design tool revenue globally

ANSYS (Synopsys acquisition target) sole-source for multiphysics simulation of chips

imec (Belgium) is sole open-access EUV process research facility in the EU — no backup

US Treasury and BIS treat advanced EDA as a controlled dual-use technology

Huawei designed around EDA restrictions using older toolchains — demonstrating partial workaround risk

Cadence and Synopsys subject to ITAR review for IP licensed to foreign partners

Cryoin and Ingas neon plants in Odessa/Mariupol disrupted by Russian invasion (2022) — production not fully recovered

Neon is a byproduct of Ukrainian steel smelting; war-damaged steel industry = structural supply loss

Japan earthquake/tsunami risk covers photoresist clusters in Shin-Etsu, Sumitomo, and JSR production zones

JSR, Shin-Etsu, and Tokyo Ohka supply >90% of ArF and EUV photoresists — all Japan-based

Stella Chemifa sole-source for high-purity hydrogen fluoride used in etching processes

Neon (used in ArF DUV lasers) has no viable fast substitute; 12–18 month buffer typical

Russia palladium exports (used in catalytic deposition) subject to Western sanctions — bypass risk via UAE/India

Japan-China semiconductor chemical export tensions following gallium/germanium Chinese controls in 2023

Ukraine war-related neon disruption was the first supply shock to directly halt wafer fab lines in 2022

Shin-Etsu Handotai and SUMCO Imari plants on or near Pacific seismic zones

Fab-grade silicon wafer production requires ultra-stable manufacturing — quake vibration is existential risk

Soitec Bernin plant (sole SOI/FD-SOI wafer source globally) in Grenoble — low seismic but sole-site risk

Shin-Etsu, SUMCO, GlobalWafers, Siltronic, and SK Siltron control ~100% of 300mm wafer supply

Soitec holds 100% of global SOI/FD-SOI wafer capacity — used by Intel, STMicro, GlobalFoundries

Silicon carbide substrates: Wolfspeed (US) is dominant but facing yield and competition pressure

Japan material export controls (expanded 2023) cover photoresist precursors and substrate chemicals

Taiwan GlobalWafers attempted Siltronic acquisition blocked by German government — strategic asset designation

China SiC substrate investment accelerating to reduce Wolfspeed dependency — displacing orders

2011 Thailand floods wiped 25% of global HDD output — same infrastructure serves OSAT

Philippines typhoon and earthquake belt runs through Laguna/Batangas OSAT cluster

Vietnam power grid reliability gaps create yield risk at Intel Vietnam (80% of Intel CPUs)

ASE Group and Amkor control ~50% of global advanced OSAT (flip-chip, CoWoS, SoIC)

Intel Vietnam: single-country concentration for 80% of all Intel finished processor units

Malaysia hosts 13% of global OSAT with no nearby backup at equivalent scale

US-China decoupling pushes OSAT investment to Vietnam/Malaysia/India but execution is 3–5 years

Vietnam Communist Party technology controls add regulatory friction for foreign-owned test facilities

Hong Kong treated as China under US EAR since 2020 — re-export enforcement disrupts transshipment

Advanced packaging (CoWoS, SoIC) concentrated in TSMC Chungli/Tainan — Taiwan Strait risk applies here too

HBM stacking fabs in Icheon/Pyeongtaek within North Korean artillery range

TSMC CoWoS capacity is sole viable path for NVIDIA H100/H200/B200 packaging — 18-month lead times

SK Hynix and Samsung control >90% of HBM production required for AI training accelerators

Advanced substrate (ABF): Ibiden and Shinko Electric control ~80% of global supply

US CHIPS Act 'guardrails' restrict TSMC from expanding packaging in China

HBM export to China blocked under Commerce Department rules since Oct 2023

AT&S (Austria) sole non-Asian IC substrate supplier at scale — EU exposure to US-Asia disruptions

DRC artisanal cobalt mining in active conflict zones (North/South Kivu)

South African platinum mines: Eskom load-shedding disrupts smelter operations

Indonesian nickel smelters face tropical storm and volcanic hazard exposure

China controls >80% of global gallium production and >60% of germanium — both subject to export controls since Aug 2023

DRC produces >65% of global cobalt ore; China controls >70% of cobalt refining globally

Lynas (Australia) is the only non-Chinese rare earth separator operating at commercial scale

China's Aug 2023 gallium/germanium export restrictions directly impacted compound semiconductor supply

DRC mining agreements structured via Chinese state-linked entities — human rights liability for Western buyers

Indonesia nickel ore export ban (2020) and EV battery mineral alignment negotiations with US create price distortions