Part 23 - Electrical test

At the end of the PCB production process we electrically test every multilayer PCB against the original board data. Using a flying probe tester we check each net to ensure that it is complete (no open circuits) and does not short to any other net. The flying probe testers in our quality control department are easy to set up as they don't need a test fixture but testing every net is slow. A faster test method is the Acceler8. This uses 4000 tiny probes like a brush. It builds an electronic map of t

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