PCB Functional Test & Programming
If you want to ensure the good quality for delivery of every board, the PCB programming, and PCB functional test is the best way to test.
PCBA Online Programming:
Before finishing welding, we usually program the microcontroller in the PCBA board to enable the microcontroller to achieve specific functions. It will improve efficiency and reduce production costs.
PCBA Test
Including ICT test, FCT test, Burn-In Test, fatigue test
ICT Test (In-Circuit Test)： Through the test probe contacting the test point of the PCBA, the main PCBA test circuit continuity, voltage and current value, fluctuation curve, amplitude, noise, etc.
PCB Functional Test Requirements
Before discussing design, test systems, software, and test methods, it is important to understand the “object” – the PCB product to be tested, not only the PCB or final assembly itself, but also how much will be produced, the expected failures, etc., including
Product type
Structure (single PCB / pre-made PCB / final product)
Test specification plan:
test point expected production (per line / per day / per shift, etc.)
Expected failure type
Obviously, the above ignores the “budget”, but only after understanding the above items to determine how much a product test to spend, to figure out what is needed to PCB functional test-the UUT before you start discussing funding issues, and only at this time to know how to make compromises to get the job done.
