> Please don't use HN primarily for promotion. It's ok to post your own stuff part of the time, but the primary use of the site should be for curiosity.
potentially overly-aggressive spam filtering? the first comment by that account happens to start off with "The new $39.99 USD Anker Nano 45W(A121D) charger" verbatim.
I think he means that, when Lucas sends himself the link to HN, it's autodead. If you click the domain, you see all submissions from LucasLabs are dead.
I was not expecting the CT scan to be able to identify the cores within the die.
But now I think about it, the metal layers (especially traces carrying power) are probably think enough, and different enough to show up. And even just power distribution is enough for the shape of the cores to be visible.
You can typically see the L1/L2 SRAM cache regions just by looking for continuous patterns, then try to divide it into the number of cores or core groups you're looking for.
This is only applicable to die photographs of the silicon layer.
For CT scans, which use X-rays, the visible structure is very likely due to the metallic (copper) interconnect, clock- and power-delivery layers, which are generally quite different from the underlying transistors.
These layers are larger-scale, and copper also absorbs X-rays much more strongly than silicon.
https://news.ycombinator.com/submitted?id=LabsLucas
> Please don't use HN primarily for promotion. It's ok to post your own stuff part of the time, but the primary use of the site should be for curiosity.
> https://news.ycombinator.com/newsguidelines.html
But now I think about it, the metal layers (especially traces carrying power) are probably think enough, and different enough to show up. And even just power distribution is enough for the shape of the cores to be visible.
https://commons.wikimedia.org/wiki/File:Intel_Core_i9-13900K...
For CT scans, which use X-rays, the visible structure is very likely due to the metallic (copper) interconnect, clock- and power-delivery layers, which are generally quite different from the underlying transistors.
These layers are larger-scale, and copper also absorbs X-rays much more strongly than silicon.