Fully automated wafer defect inspection system

Fully automated wafer defect inspection system consists of a multi-angle visual inspection system, a high-performance vibration isolation system, and an automatic wafer loading and unloading system.

Utilizing advanced machine learning algorithms, the system enables high-precision detection and early warning of defects such as stains, scratches, bumps, fractures, discoloration, and dimensional errors. The system’s minimum detectable defect reaches 0.5μm, supporting 6 sigma Si and 4 sigma Sip process flow.

Wide range of applications

  • Silicon photonics, TFLN, III-V, SiC, GaN, MEMS wafers etc.

High accuracy and repeatability

  • Machine learning algorithms

  • Minimum detectable defect 0.5μm

  • On-the-fly line scanning significantly improves inspection throughput

Automated test

  • Automatic loading and unloading of DUT

  • Automatic focus and layered focus image capture

Flexibility

  • Integrated with a large AI model, with machine learning capability

  • Wafer (2 ~ 12 inch) and die level AOI

  • Multi carrier form including Blue Tape/Gel-Pak/Waffle Pack

  • Compatible with unpatterned wafer and patterned wafer

  • Integrated bright field (BF), dark field (DF) and differential interference contrast (DIC)

  • Detectable defects includes contamination, scratch, bump, break, discoloration, and dimensional error