Testing chips before packaging helps manufacturers detect problems early in the production process. Since packaging and assembly add cost to each device, identifying defective dies beforehand improves manufacturing efficiency and reduces waste.
Benefits of wafer sort include:
The data generated during probe testing provides valuable information about manufacturing performance and process health.
A wafer is placed on a testing system where automated probes contact designated test points on each die. Test programs evaluate electrical performance and functionality.
Testing may include:
Each die is categorized based on test results, allowing manufacturers to determine which devices are suitable for further processing.
Wafer sort generates significant amounts of manufacturing and quality data. Engineers can analyze test results to identify recurring defects, process issues, equipment problems, or design concerns.
The information collected can support:
This visibility helps organizations continuously improve manufacturing performance.
QMS solutions help organizations manage nonconformance records, corrective actions, defect investigations, and quality reporting associated with wafer sort results. PLM systems support traceability by connecting wafer sort results to design records, manufacturing information, test data, and engineering changes. Together, PLM and QMS help organizations maintain visibility across the product lifecycle while supporting data-driven quality improvement.
Testing before packaging reduces manufacturing costs by identifying faulty devices early. This prevents unnecessary assembly and packaging expenses.
Wafer sort can detect electrical failures, performance issues, manufacturing defects, and other functional problems. The specific tests depend on the device being produced.
PLM helps connect test results to product records and engineering changes, while QMS supports defect tracking, corrective actions, and quality investigations.
