Yield and quality control

What is the system called that tracks each product's manufacturing history, needed to identify products that may have been affected when an abnormality is found?

  1. ABinning
  2. BGuard band
  3. CTraceability
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Answer: C. Traceability

Traceability records which wafer and lot each product came from and which equipment and conditions processed it, so its history can be traced back. When an equipment abnormality or similar issue is found, the range of affected products can be identified quickly, minimizing shipment holds and recalls.

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More Yield and quality control questions

  1. Which technique rejects chips that are within specification in test but show values far outside the distribution of the same lot?
  2. Which correctly describes the difference between the control limits of a control chart and a product's specification limits?
  3. What is the correct order of the PDCA cycle used in quality control and process improvement?
  4. Which of the seven QC tools is the approach of dividing data into groups, such as by machine, operator or material, and comparing them to find the causes of differences?
  5. Which of the seven QC tools is a pre-prepared table of items to check that makes it easy to record and tally inspection results and defect occurrences?