China's chip capabilities just 3 years behind TSMC, teardown shows

Original Article ↗ Hacker News Discussion ↗

Technical capabilities: DUV vs EUV, SMIC vs TSMC

  • SMIC is pushed to take deep-UV (DUV) lithography to its limits; for current Chinese nodes this can be “good enough,” but further scaling is seen as requiring EUV.
  • TSMC is described as already focused on next-gen technologies: EUV, backside power, advanced packaging/chiplets, glass substrates.
  • Several comments stress that SMIC’s recent advances mostly squeeze more out of pre-sanctions equipment; yields at advanced nodes are believed to be poor.
  • Some argue a “3‑year” gap understates reality once yields, equipment supply, and ecosystem maturity are considered.

Lithography equipment and EUV race

  • China is heavily constrained by export controls on EUV tools, with ASML singled out as the key bottleneck.
  • Multiple comments assume China is throwing major resources at building domestic EUV systems and other lithography tools, framing this as a top strategic priority.
  • Others doubt China is anywhere close to ASML-level capability; current dependence on foreign tools is seen as a critical vulnerability.

Economic context and debt concerns

  • One side portrays China as “really broke”: large local-government shadow debts, real-estate and stock-market losses, unpaid public employees, and weak local revenues after land-lease collapse.
  • Others counter that much debt is internal, China runs a trade surplus, and it has room to print or restructure, though inflation and resource import dependence are concerns.
  • Debate over whether China’s debt situation is actually worse than that of the US; definitions of “national debt” and the role of SOEs are contested.

Strategic value of leading-edge chips

  • Some argue most applications don’t need cutting-edge chips; being ~5 years behind would mainly hurt profit margins.
  • Others say power efficiency and performance matter strategically (AI, data centers, missiles/drones), and three generations is “way too far behind.”

Export controls, CHIPS Act, and geopolitics

  • Export controls are framed as attempts to limit China’s economic, military, and technological power, especially given tensions over Taiwan.
  • Counterview: sanctions may accelerate Chinese self-reliance and reduce deterrence from economic interdependence.
  • CHIPS Act and “China+1” manufacturing strategies are discussed as partial decoupling; some say decoupling is now feasible, others say replacing China’s scale is extremely hard.