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PCBA test sharing

2022-04-09

PCBA test sharing

Free sharing of PCBA test

PCBA test is the most critical quality control link in the whole PCBA processing process. It is necessary to strictly follow the PCBA test standard and test the test points of the circuit board according to the customer's test plan.

PCBA test also includes five main forms: ICT test, FCT test, aging test, fatigue test and test in harsh environment.

ICT (in circuit test) test mainly includes on-off, voltage and current values, fluctuation curve, amplitude, noise, etc;
The FCT (functional circuit test) test needs to burn the IC program, simulate the function of the whole PCBA board, find the problems in the hardware and software, and be equipped with necessary production fixtures and test racks;

Burn in test is mainly to energize PCBA board and electronic products for a long time, keep them working and observe whether there are any failure faults. Electronic products can be sold in batches after aging test;

The fatigue test is mainly to sample the PCBA board and conduct high-frequency and long-time operation of the function to observe whether there is failure. For example, continuously click the mouse for 100000 times or turn on and off the LED light for 10000 times to test the probability of failure, so as to feed back the working performance of PCBA board in electronic products;

The test under severe conditions is mainly to expose the PCBA board to the temperature, humidity, drop, splash and vibration of the limit value, and obtain the test results of random samples, so as to infer the reliability of the whole batch of PCBA board products.