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cookingrobot | 1 year ago

Does this help with compute, or just MEMS and radio?

discuss

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ak217|1 year ago

Not sure about compute. But

> Achieving higher scandium concentrations in aluminum nitride films can help increase RF filter performance. Pulsed laser deposition can take the scandium concentration in the film to at least 40%, up from the previous 30% limit

The first thing that came to mind when reading this was RF synthetic aperture performance for jamming-resistant directional antennas in military applications. These seemingly incremental improvements can have huge real world consequences.

Imagine the Starlink antenna but with 10x the performance, or a radar that can withstand 10x the jamming or hide completely because it needs 10% the power. I wonder if that's what's possible here.

ak217|1 year ago

(correction: phased array, not synthetic aperture)

osnium123|1 year ago

I think it’s more for MEMS and RF applications. These techniques don’t have enough conformality for modern fin and nanosheet based transistor logic.

mensetmanusman|1 year ago

PLD is currently required for deposited materials that have, for example, high Faraday rotation (https://en.m.wikipedia.org/wiki/Faraday_effect)

These are types of important material properties for the future of compute if we are to use light based computation. E.g. how can one make a medium for light to only propagate one direction.