Elara picked up a magnifying loupe. There it was: a tiny 0402 component, stood up on one end like a miniature grave marker. The solder paste had reflowed unevenly—not because the oven was bad, but because the was too symmetrical .
The first board lit up green. Then the second. Then all twelve. ipc-7352
But the drones were failing. Not in simulation. In the field. Elara picked up a magnifying loupe