China Semiconductor Equipment: Validation and Penetration

Introduction

Domestic semiconductor equipment has become a strategic focus for supply chain resilience. As advanced process nodes push toward physical limits, fab qualification requirements tighten, making validation progress a key metric of competitiveness. This guide evaluates the current state of lithography, etch, and thin film deposition equipment from domestic suppliers in advanced process lines.

Penetration rates in mature nodes have grown steadily, but advanced node adoption remains limited. Understanding the gap between 'usable' and 'good' requires analyzing process stability, yield impact, and the long validation cycles that govern equipment qualification.

Validation Status in Advanced Process Lines

For lithography, domestic equipment largely supports DUV-based patterning at 28nm and above. Immersion lithography tools are undergoing accelerated validation, but insertion into 14nm and below is still in pilot stages. Key challenges include overlay accuracy, throughput, and defect control under high-volume manufacturing conditions.

Etch equipment has achieved broader penetration, with leading domestic suppliers qualifying dielectric and conductor etch processes at 14nm. However, critical high-aspect-ratio and atomic-layer precision etches still depend on imports. Thin film deposition shows similar patterns: PVD and CVD tools are widely used at