https://techxplore.com/news/2025-01-digital-memories-noble-gases-xenon.html
Better digital memories with the help of noble gases: Xenon
approach could become industry standardBetter digital memories
with the help of noble gases: Xenon approach could become
industry standard
. . .
Short version - building-up memory chips (and other
kinds) requires little holes between the layers to
create electrical connections. Alas below a certain
size and the holes can't be filled-up with conductive
material properly ... it tends to just overcoat the
top of the hole and nothing gets down the the layer
below.
It has now been found that introducing xenon to the
manufacturing atmosphere helps prevent this, maybe
physically 'coating' the walls of the hole. Using
this, material CAN be reliably deposited in the
hole from bottom-up.
Xenon is expensive, but use per-batch can likely
be optimized. It's also infinitely recyclable.
Dual atomic-scale membranes might be able to
concentrate xenon and only then would cyrogenic
methods be needed for final purification.
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