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illlja2021-12-23 11:11:09
Electronics
illlja, 2021-12-23 11:11:09

Can static electricity get to the processor through the heatsink?

Tell me, please, can static electricity through the radiator get on the processor and ruin it?
For example, on a raspberry pi (or any other single board computer), the heat sink "goes out into the outside light", that is, you can touch it with your hands.
Can it happen that you touch the heatsink, it will transfer a static charge to the processor and it will burn out?

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5 answer(s)
R
Ricardo Sanchez, 2021-12-23
@yakovlev_13

Here the question is the electrical conductivity of the thermal paste and the area of ​​\u200b\u200bits application. In general, the electrical conductivity is extremely low, but if it is based on liquid metals, then it will probably be a little more.
In my life, I have not yet come across such a case that burned a percentage of static breaking through the cooler.

P
pfg21, 2021-12-23
@pfg21

connect the heat sink with a conductor to the ground of the board.
but better make a faraday cage around the board and ground it with high quality.

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Vladimir Korotenko, 2021-12-23
@firedragon

theoretically possible. All work with the computer must be carried out in a grounding bracelet. In practice, if the device is assembled, it is extremely difficult.

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VT100, 2021-12-23
@VT100

To do this, the accumulated electricity must first break through (see the joke about engine braking) the plastic case of the RPi processor. Also - there is a possibility that on top of the processor case there is a metal heat spreader, which is "grounded".

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Drno, 2021-12-23
@Drno

With a normal single-board case, nothing goes anywhere)
Well, the second point - I’m not sure - don’t touch it when it’s on.
But in fact - I think it’s possible, but this is a case of 1 for many millions)

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