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ormal thermal design and structural characteristics of PCBA test
PCBA needs to be tested in advance before use. It can only be used if it passes the test. If it fails, it cannot be used. However, there are a lot of problems to consider when testing PCBA. First of all, we should know the main content of PCBA, so what are the basic content of PCBA when testing?
1. ICT test mainly includes circuit on/off, voltage and current values, wave curve, amplitude, noise, etc.
2, FCT test needs IC program firing, the function of the whole PCBA board simulation test, find the problems in the hardware and software, and equipped with the necessary production fixture and test rack.
3, fatigue test is mainly to sample THE PCBA board of PCB factory, and conduct high-frequency and long-term operation of function, observe whether failure occurs, judge the probability of failure in the test, so as to feedback the working performance of the PCBA board in electronic products.
4, the harsh environment test is mainly to expose the PCBA board to the limit temperature, humidity, drop, splash, vibration, to obtain the test results of random samples, so as to infer the reliability of the whole PCBA board batch products.
5, the aging test is mainly to electrify the PCBA board and electronic products for a long time, keep them working and observe whether there is any failure, after the aging test, the electronic products can be sold in batches.
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