ASML holds a complete monopoly on EUV lithography systems needed for sub-5nm nodes. Each machine costs ~$400M with 12+ month lead time. No alternative supplier exists.
ASMLTSMINTCZEISSTRUMPF
Over 90% of advanced chips (<7nm) come from one company on one island. TSM's Taiwan location represents an existential geopolitical supply chain risk. US, Japan, and Germany fabs under construction but years from volume.
TSMNVDAAMDAVGOQCOM
TSMC's 2.5D/3D packaging technology is the bottleneck for AI chips. Demand outstrips supply by 2-3x. Every major AI accelerator (H100, B200, MI300) requires CoWoS.
TSM-PKGNVDAAMDAVGOAMKR2802.T
Carl Zeiss is the sole supplier of the atomic-precision mirrors inside ASML EUV machines. No Zeiss, no EUV. This is the deepest single-source dependency in the entire chip industry.
ZEISSASML
High-bandwidth memory (HBM3/HBM3E) is essential for AI GPUs. SK Hynix leads, Micron and Samsung qualifying. Limited supply constrains GPU production.
MUSKHYSMSNNVDA
Shin-Etsu and SUMCO dominate 300mm wafer supply. High-purity wafer shortages can directly constrain foundry output and raise costs across the industry.
4063.T3436.T6488.TWOTSMINTC
Ajinomoto Build-up Film (ABF) substrates are essential for advanced chip packaging. Ajinomoto controls ~70%+ of supply. Tight capacity limits packaging output.
2802.T4062.T3037.TWTSMNVDA
KLA Corporation is the near-monopoly supplier of defect inspection and metrology tools. Every fab ramp depends on KLA tools for yield management and process control.
KLACTSMINTCAMAT