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> You need almost as sophisticated equipment for verification as needed for fabrication. The the fabrciation companies are the only ones that have that capabili
by welterde 8y ago
> You need almost as sophisticated equipment for verification as needed for fabrication. The the fabrciation companies are the only ones that have that capability.
That's not true. Imaging ICs (or other structures) down to sub-nm resolution is much much easier than making them.
Most physics labs will have no problem doing that..
The various imaging techniques (AFM, STM, etc.) used can routinely achieve sufficient resolution to verify these claims with fairly moderate amounts of tweaking and cost.
STM is often used to image things down to atomic resolution.
- johntb86 8y ago> That's not true. Imaging ICs (or other structures) down to sub-nm resolution is much much easier than making them. Most physics labs will have no problem doing that.. For example, see Chipworks's analysis of Intel's 14nm process: https://www.chipworks.com/about-chipworks/overview/blog/intel%E2%80%99s-14-nm-parts-are-finally-here https://www.chipworks.com/about-chipworks/overview/blog/inte...
- fizixer 8y agoThe link you shared only supports my point: either the claims are false, or they're not verifiable independently. "As yet we don’t have any detailed TEM imaging to look at the transistors or fins in close-up" And that's 14nm from years ago, not the 7nm or 5nm being claimed these days.
- fizixer 8y ago> ... almost as sophisticated equipment for verification as needed for fabrication ... > ... imaging techniques (AFM, STM, etc.) ... with ... tweaking ... I don't see the 'not true' part here. (Also as I responded to the other commenter who shared a third party link, even 14nm could not be verified in 2014: "As yet we don’t have any detailed TEM imaging to look at the transistors or fins in close-up").