The quality test of IC chip usually includes appearance check, function test, performance parameter test and environment adaptability test.
Visual inspection Check the integrity of the external packaging and metallization layer with light microscopy and high-precision imaging equipment;
Function test by conducting current and voltage test in constant temperature and humidity environment, check whether the integrated circuit can normally output the expected signal;
Performance parameter testing DC and AC characteristic parameters are tested by equipment and test instruments;
Environmental adaptability testing tests the stability and reliability of integrated circuit chips in different environments by simulating various environmental conditions (such as high temperature, low temperature, humidity, etc.).