3 ms·
At what feature size do cosmic rays and such start to become really problematic for these devices. What about longevity - do the materials start to break down o
by andy_ppp 5y ago
At what feature size do cosmic rays and such start to become really problematic for these devices. What about longevity - do the materials start to break down over time if they become this small?
- ben_w 5y agoCosmic rays have been a problem for a while and need special processes and enclosures to mitigate. Likewise, the materials already in use do decay after a while; I’m not a material scientist, but my friends who are gave me the impression the current flowing though it has a similar effect as does anodising aluminium. This may have been an oversimplification, or not, I wouldn’t know.
- bruce343434 5y ago> a similar effect as does anodising aluminium Which means... ? Performance degradation? Gates being destroyed long term? Slight decrease at first but then stable performance for years?
- ben_w 5y agoIt means the atoms from one side of a junction of two dissimilar materials end up embedded inside the other, where you probably don’t want them to be. I am not the right person to ask what the failure looks like (this may have been an analogy for my benefit rather than how it actually happens), but at some point it fails.