PCBA testing is a necessary step to detectand verify the assembly process of printed circuit boards (PCBA).This process includes a variety of testingmethods designed to ensure that the PCBA is functioning properly and meetingexpected performance requirements.
The main types of PCBA testing include:
1. ICT test: Check the circuit's on-offstatus, voltage and current values, their fluctuation curves, amplitude andnoise and other electrical parameters.
2. FCT test: Simulate the functions of theentire PCBA board, discover problems in hardware and software through ICprogram burning, and equip with necessary test racks.
3. Fatigue test: Perform high-frequency andlong-term operations on the PCBA board to observe whether there is failure andevaluate the probability of failure.
4. Aging test: Keep the PCBA board andelectronic products working for a long time and check whether there are anyfailures.
5. Functional test: Test whether thevarious functions of the PCBA are normal, such as switches, LED lights,communication interfaces, etc.
6. Appearance inspection: Check whether theappearance of PCBA is intact and whether the logo is clear, etc.
7. Welding quality test: Check whether thesolder joints on the PCB are correctly connected and whether the quality of thesolder joints is qualified.
8. Electrical performance test: Testwhether the electrical parameters of PCBA, such as voltage, current,resistance, etc., meet the specifications.
9. Testing in harsh environments: Exposethe PCBA board to conditions such as extreme temperatures, humidity, drops,splashing water, vibration, etc. to evaluate its reliability.
These tests help ensure the quality of thePCBA, meet design specifications, and provide reliable performance inreal-world use