The yield of a manufacturing process is defined as the fraction of acceptable parts among all parts fabricated [5]. If the number of acceptable parts is 5000, and the number of total parts that are fabricated is 7000; calculate the yield.
- Defect level, also known as reject rate, is defined as the fraction of faulty chips among all chips passing the test, which can be expressed as parts per million (PPM) [5]. If the number of faulty chips passing final test is 10, the total number of chips passing final test is 50,000; calculate the defect level.
- If each chip has 92% fault coverage and 70% yield, calculate the defect level.