PCBAneeds to be tested in advance before use. It can only be used if it passes thetest. If it fails, it cannot be used. However, there are a lot of problems toconsider when testing PCBA. First of all, we should know the main content ofPCBA, so what are the basic content of PCBA when testing?
1.ICT test mainly includes circuit on/off, voltage and current values, wavecurve, amplitude, noise, etc.
2,FCT test needs IC program firing, the function of the whole PCBA boardsimulation test, find the problems in the hardware and software, and equippedwith the necessary production fixture and test rack.
3,fatigue test is mainly to sample THE PCBA board of PCB factory, and conducthigh-frequency and long-term operation of function, observe whether failureoccurs, judge the probability of failure in the test, so as to feedback theworking performance of the PCBA board in electronic products.
4,the harsh environment test is mainly to expose the PCBA board to the limittemperature, humidity, drop, splash, vibration, to obtain the test results ofrandom samples, so as to infer the reliability of the whole PCBA board batchproducts.
5,the aging test is mainly to electrify the PCBA board and electronic productsfor 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.