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Final PCB Error Checklist (view source)
Revision as of 08:20, 23 September 2016
, 08:20, 23 September 2016Added my most embarrassing moment as an EE
|Check ICs to make sure all pins are routed or appropriately not connected. Avoid setting the schematic editor snap grid to anything other than 10 [units].
|Check ICs to make sure all pins are routed or appropriately not connected. Avoid setting the schematic editor snap grid to anything other than 10 [units].
|Kirill Safin, on HAB Main Avionics PoS1, where a number of pins appeared connected but were very much not.
|Kirill Safin, on HAB Main Avionics PoS1, where a number of pins appeared connected but were very much not.
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|rowspan="1"|Routing Errors
|Sensitive Analog Traces Near Noise Sources
|When a trace carrying an analog voltage - i.e. a voltage or current sense - is routed in a way that makes it likely to pick up noise, affecting the analog value.
|Route sensitive analog lines first, shielded by ground planes when appropriate, and then be mindful of the placement of noise-inducing devices (i.e. inductors). On two-layer boards, cross traces on opposite layers at right angles to each other to minimize noise coupling.
|Sasha Maldonado, on ValBal Generation V.I, where a voltage sense line was run ''under'' and '''parallel to''' an inductor in a switching power converter, creating a small transformer and rendering the voltage sense useless.
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