Wafer testing is a crucial process in the semiconductor manufacturing industry. It involves evaluating the performance and quality of silicon wafers after they have been fabricated but before they are cut into individual chips. This testing helps identify any defects or issues that could affect the functionality of the final products. During wafer testing, various electrical tests are performed to ensure that each chip meets the required specifications. This process helps manufacturers detect problems early, reducing waste and improving the reliability of the integrated circuits that will be produced from the wafers.