INDUSTRIAL VISION · GUIDE

Semiconductors and packaging: qualify the imaging setup

Wafers, bare dies, micro-bumps and package interiors are different inspection targets. Optical imaging can be evaluated for exposed particles, chipped edges and bumps; internal voids and delamination may require X-ray, acoustic or other suitable methods. PCBA AOI specifications do not automatically qualify wafer or advanced-packaging inspection.

Application and selection guide

Wafers, bare dies, micro-bumps and package interiors are different inspection targets. Optical imaging can be evaluated for exposed particles, chipped edges and bumps; internal voids and delamination may require X-ray, acoustic or other suitable methods. PCBA AOI specifications do not automatically qualify wafer or advanced-packaging inspection.

How to validate

Supply dimensions, minimum defect sizes, tolerances, surface materials, cleanliness needs and handling requirements. Qualify lateral resolution, height repeatability, edge visibility and throughput before selecting dedicated equipment or an integration design.

This is a general industrial-vision evaluation guide, not a delivered IRIS ANT PCBA AOI case study or a standard machine configuration. The station must be qualified for the parts, optics and automation requirements.

Project evaluation checklist

  1. Define the item, visible inspection surfaces and minimum defects; separate appearance, internal structure and electrical or functional checks.
  2. Prepare verified good, defective and borderline samples across lots; separate training and acceptance sets.
  3. Report escapes and false calls by defect class, with review workload, complete cycle time and repeatability.
  4. Confirm program versions, permissions, retention and traceability fields; approve production only after trials pass.

Continue with