Woensdagochtend 31 mei, Seminarzaal 1

Bringing an end to the ‘smoke-test’?
As many engineers know, the term ‘smoke-test’ has not arisen by chance. The initial power-up of PCBAs during development and production test can be a very stressful and expensive time.

The drive in modern electronics for more function, at a reduced cost and size, usually means using ever higher pin-count BGA and other lead-less package devices, and smaller PCBs, with the resulting limited test access, reduced scope for ICT, and limited or no ability to verify critical component values before the first power-up.

Many modern electronic devices now use FPGA and/or SoC ICs that are often not only very expensive, but also require multiple power rails and are more easily damaged due to their small internal geometries. Even if expensive AOI (automatic optical inspection) and/or AXI (automatic x-ray inspection) has been deployed and performed, there is still the chance that just one of many critical PSU components might be the wrong value, causing an over-voltage, and potentially damage or destroy these high value devices, or the entire PCBA.

This presentation will reveal how to significantly reduce the risks of the ‘Smoke Test’ and protect your PCBA by careful planning your test strategy. It will also investigate how test coverage on complex PCBA’s and Systems can be increased, while development efforts are reduced .

Andre de Ceuninck, Logic Technology

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