Question What is the name of this type of heat sink mount that's soldered on with 4 pins ?

reaper89971

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Jun 2, 2023
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What is the name of that type of mounting.
Unsure if it even has dedicated name, since everything that is soldered on, isn't meant to be replaced.

But in electronics world (namely CPUs), closest to what you have, can be called BGA (ball grid array).
BGA CPUs/chips are soldered directly to PCB, just like your heat spreader is.
Further reading: https://en.wikipedia.org/wiki/Ball_grid_array