Meaning
Electro-mechanical fixtures secure printed circuit boards during end-of-line verification to ensure functional integrity before packaging. In high-volume hardware assembly, acceptance test jigs connect physical pins to critical test points to measure voltage and signal transition times. This procedure verifies that the board contains no fabrication shorts or assembly errors.
Interface Calibration
Reliable mechanical contacts prevent false failures that halt the assembly line. The pogo pins used in these acceptance test jigs undergo standard wear checks to ensure they provide consistent pressure on the test points of each board. Sub-optimal alignment creates signal noise that mimics a hardware defect.
Production Release
Adding verification hardware into the manufacturing sequence requires a clear handover document from the design team to the factory. Software programs loaded onto the acceptance test jigs execute self-test routines to prove the fixture itself is calibrated and ready. Output files must record the serial numbers of passing units to maintain traceability.
This step is a prerequisite for shipping the hardware.
Diagnostic Output
Data captured during verification allows engineers to isolate failing components quickly. Faulty assemblies are directed to a repair station with a log showing the exact test block that failed. This speed reduces diagnostic time.