How to Maximize Inline IC Structural Screening Coverage

+ Electrical Structural Tester

Maximize Inline IC Structural Screening Coverage

Maximizing inline IC structural screening coverage is essential for identifying semiconductor package defects, improving manufacturing quality, and reducing the risk of defective devices reaching customers. Keysight Inline structural screening evaluates semiconductor packages during manufacturing by measuring electrical characteristics that reveal structural abnormalities before final functional testing. This approach complements conventional Automated Test Equipment (ATE) and Automated X-ray Inspection (AXI) by helping identify structural defects that may not be detected through conventional open-short testing or limited sampling inspection.

Capacitive sensing techniques analyze the electrical coupling between internal conductive structures, such as lead frames and wire bonds, to identify potential structural abnormalities. Statistical profile analysis compares each device's measurement results against established production baselines, enabling automatic detection of abnormal structural characteristics. By applying this approach across high-volume manufacturing lines, engineers can expand inline screening coverage, improve defect detection, and enhance production quality and reliability.

Inline Structural Screening Solution

Achieving complete structural screening requires integrating a high-speed electrical inspection system directly into the semiconductor production flow without slowing manufacturing throughput. The solution combines Electrical Structural Testing with capacitive Vectorless Test Enhanced Probe technology to inspect internal package structures immediately after Automated Test Equipment testing.

The system detects structural defects including wire sag, near shorts, incorrect die placement, and abnormal package construction that may not be identified through conventional electrical or X-ray inspection alone. Built-in Part Average Test analysis continuously monitors production variations and dynamically updates screening limits to reduce false rejects. Supporting up to 20 parallel test sites and throughput reaching 72,000 units per hour, the solution enables full inline inspection for high-volume automotive semiconductor manufacturing while reducing escape defects and improving product quality.

Get Quote