Re: 38 Mb/mm^2 SRAM

On 10/31/24 20:42, Joe Gwinn wrote:

On Thu, 31 Oct 2024 17:36:23 +0100, Jeroen Belleman
<jeroen@nospam.please> wrote:
 

On 10/31/24 16:01, Sylvia Else wrote:

On 31-Oct-24 8:46 pm, Jan Panteltje wrote:

SRAM scaling isn't dead after all — TSMC's 2nm process tech claims
major improvements
   https://www.tomshardware.com/tech-industry/sram-scaling-isnt-dead-after-all-tsmcs-2nm-process-tech-claims-major-improvements#main
>
gate all around tech...
   38 Mb/mm^2
>

If my arithmetic is right, there are about 50 atoms of silicon per cubic
nanometre. Surely we're approaching the limits of this.
>
Sylvia.

>
The stated '2nm process' has little to do with the actual size
of features on the chip. It has become a sales argument rather
than the true size of something.

 If I recall, it actually has a fairly precise definition, that it's
the smallest feature size that can be manufactured.  So, it's roughly
equivalent to a pixel, and it takes many pixels to make a legible
letter or number.
 Joe Gwinn

It used to, to be sure, but no more. You can't image 2nm details
with 13nm EUV.
Jeroen Belleman