What are the PCBA tests?

The process of PCBA processing is very complicated, including PCB bare board process, component procurement and inspection, SMT, DIP, PCBA test and many other important processes. Because in the production process, there may be various problems due to improper equipment or operation, so can't guaranteed the every products are qualified. Therefore, PCBA testing is required to ensure that each product does not have quality problems. PCBA tests mainly include: In circuit test, function check test, aging test, fatigue test, and test in harsh environment.

1. In circuit test mainly include circuit continuity, voltage and current values and fluctuation curves, amplitude, noise, and so on.

2. The function check test requires IC program burning, simulates the function of the entire PCBA board, finds problems in hardware and software, and equips the necessary production fixtures and test fixtures.

3. The aging test is mainly to energize the PCBA board and electronic products for a long time, maintain their work and observe whether there is any failure. After the aging test, the electronic products can be sold in batches.

4. The fatigue test is mainly to sample the PCBA board, and perform high-frequency and long-term operation of the function to observe whether there is a failure and judge the probability of the test failure, so as to feedback the working performance of the PCBA board.

5. Test in the harsh environment is mainly to expose the PCBA board to the limit temperature, humidity, drop, splashing, vibration, and obtain the test results of random samples, so as to infer the reliability of the entire PCBA board batch product.