# Semiconductor Equipment

Leading-edge chips rely on a dense ecosystem of lithography, etch, deposition, metrology, and inspection tools. US and allied firms dominate the most advanced toolchains.

**Measure:** Advanced Lithography and Leading Process Tooling

**US & Allies Score:** 10.0/10  
**China Score:** 2.0/10  
**Leader:** US & Allies

## Key Metrics

- **Tooling dependence:** Dependence Index = (Critical tool steps supplied by constrained vendors / Total critical tool steps) × 100
- **Process capability:** Capability = (Achievable CD control + overlay + defectivity) at target throughput for leading nodes

## What matters in this layer

Lithography is the headline, but sustained advantage comes from the full stack: deposition, etch, metrology, inspection, and the software and service ecosystem that keeps fabs running at high utilization.

### EUV as a hard gate

EUV tools (and their optics, sources, and resists) set the feasible frontier for patterning. Export controls and spare‑parts access can translate directly into node ceilings.

### Service and yield learning

Process windows are discovered in production. Rapid iteration depends on field service, metrology feedback loops, and tight vendor integration.

> Next: we can add a “critical path” diagram of tool steps for a leading node once arrows/flows are introduced.

## Recent Developments

### EUV Lithography Remains Concentrated
*Recent | Lithography*

Extreme ultraviolet (EUV) scanners are essential for state-of-the-art nodes. Tight export controls and complex supply chains keep the frontier concentrated among a small set of allied suppliers.

### China Accelerates Domestic Tool Substitution
*Recent | Industrial Policy*

China continues investing in domestic etch, deposition, and metrology. Progress is fastest in mature-node tooling, with slower advancement at the leading edge.

### Metrology and Inspection as a Bottleneck
*Recent | Yield*

As nodes shrink, defect detection and overlay control become more challenging, increasing the strategic value of metrology and inspection systems.