Re:Breaking Superconductor News
by pjc50 on Thursday July 27, 2023 @05:31AM
(#36891051)
> Just wondering if it might eventually be possible to use it in some power/clocking distribution layers of a semiconductor chip
There's an additional obstacle factor here which is that the material has to (a) be "sputterable" onto the surface, which may rule out things with fancy crystal requirements, and (b) not adversely react with the rest of the chip, which is why coppper is ruled out (!) and chips use aluminium for metal layers.
Re:Breaking Superconductor News
by cma on Thursday July 27, 2023 @01:06PM
(#36896679)
Copper replaced aluminum some time ago (starting ~1997) regardless because of the resistivity, and they just had to find different barrier materials to prevent electromigration and overcome other issues.
There's an additional obstacle factor here which is that the material has to (a) be "sputterable" onto the surface, which may rule out things with fancy crystal requirements, and (b) not adversely react with the rest of the chip, which is why coppper is ruled out (!) and chips use aluminium for metal layers.