# At what pressure do semiconductors break down? [closed]

So let's say you were going to send some electronics to the bottom of the ocean, 3-5km down. This would be about $$5km*1000kg=5Mkgf/m^{2}$$. So at what pressure do circuit boards, transistors, etc stop working? Apparently there's a thing called the quantum critical point which some semiconductors break down. Although in this example the semiconductor broke down at about 10x the pressure that I'd be dealing with, I'm wondering if there are other known issues at these pressures with electronics?

My hypothetical specifically would exist as some circuits/computer hardware in caster oil (so salt water can't short it and the oil remains relatively incompressible), where instead of making the container withstand the pressure difference and keep the internals at 1atm, the contain might flex just enough so that the pressure inside is the same as the outside. So I'm wondering what kind of semiconductors/etc might break down under high pressures? Or if there's any other properties I might be missing?

## closed as off-topic by Emilio Pisanty, ZeroTheHero, Jon Custer, Buzz, Kyle KanosJan 1 at 15:27

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