New article: Intel 4 Process Scales Logic with Design, Materials, and EUV

Article: Intel 4 Process Scales Logic with Design, Materials, and EUV
By: Adrian (a.delete@this.acm.org), June 13, 2022 10:42 pm
Room: Moderated Discussions
--- (---.delete@this.redheron.com) on June 13, 2022 9:11 pm wrote:
>
> The distinction between contacts and layers is a reasonable point, but is it significant?
> Is there an interest/important reason why it's more difficult to create a layer of cobalt traces
> than to create short vertical contacts of cobalt? I guess there is *some* difference given that
> tungsten has frequently been used for these sorts of plugs, but I'd love to know the full story.


The distinction is very significant.

Already since the beginning there were speculations that the cobalt interconnections may have a too large resistance, and that TSMC might be wiser by using cobalt only for contacts, instead of using it for traces, like Intel.

This has been confirmed now by the Intel presentation, where the figure comparing the interconnection metals used in Intel 4 and Intel 7 shows good reliability but bad resistance for the cobalt interconnections.


A cobalt contact has a small resistance, because it is very short and it is also wider than its length.

A cobalt trace on the other hand, introduces a much greater resistance, because it is long and narrow.
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New article: Intel 4 Process Scales Logic with Design, Materials, and EUVDavid Kanter2022/06/12 07:05 PM
  New article: Intel 4 Process Scales Logic with Design, Materials, and EUVDylanP2022/06/12 09:52 PM
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    New article: Intel 4 Process Scales Logic with Design, Materials, and EUVAdrian2022/06/13 01:35 AM
  New article: Intel 4 Process Scales Logic with Design, Materials, and EUVAdrian2022/06/13 01:50 AM
    New article: Intel 4 Process Scales Logic with Design, Materials, and EUVanonymou52022/06/13 06:21 AM
      New article: Intel 4 Process Scales Logic with Design, Materials, and EUVAdrian2022/06/13 07:32 AM
      New article: Intel 4 Process Scales Logic with Design, Materials, and EUV---2022/06/13 10:47 AM
        New article: Intel 4 Process Scales Logic with Design, Materials, and EUVMichael S2022/06/13 11:20 AM
          New article: Intel 4 Process Scales Logic with Design, Materials, and EUV---2022/06/13 09:11 PM
            New article: Intel 4 Process Scales Logic with Design, Materials, and EUVAdrian2022/06/13 10:42 PM
              New article: Intel 4 Process Scales Logic with Design, Materials, and EUV---2022/06/14 09:58 AM
                New article: Intel 4 Process Scales Logic with Design, Materials, and EUVAdrian2022/06/14 12:06 PM
                  New article: Intel 4 Process Scales Logic with Design, Materials, and EUVanonymou52022/06/14 09:25 PM
        New article: Intel 4 Process Scales Logic with Design, Materials, and EUVDavid Kanter2022/06/13 07:26 PM
          New article: Intel 4 Process Scales Logic with Design, Materials, and EUV---2022/06/13 09:08 PM
  Power and Frequency Improvement of Intel 4Sean M2022/06/13 03:28 AM
    Power and Frequency Improvement of Intel 4Adrian2022/06/13 05:27 AM
  Cong is dead, long live eCungMichael S2022/06/13 04:47 AM
  foundry nodesMichael S2022/06/13 05:13 AM
    foundry nodesRayla2022/06/13 05:56 AM
      foundry nodesMichael S2022/06/13 06:20 AM
        foundry nodesRayla2022/06/13 07:24 AM
      foundry nodesanonymou52022/06/13 06:26 AM
  New article: Intel 4 Process Scales Logic with Design, Materials, and EUVFred Chen2022/06/13 08:38 AM
    New article: Intel 4 Process Scales Logic with Design, Materials, and EUVDavid Kanter2022/06/13 09:41 AM
      New article: Intel 4 Process Scales Logic with Design, Materials, and EUVFred Chen2022/06/13 06:11 PM
  New article: Intel 4 Process Scales Logic with Design, Materials, and EUVBjörn Ragnar Björnsson2022/06/13 09:08 AM
    New article: Intel 4 Process Scales Logic with Design, Materials, and EUVanonymou52022/06/13 11:50 AM
    New article: Intel 4 Process Scales Logic with Design, Materials, and EUVBill K2022/06/14 01:58 AM
      [quibble] Yield is not determined by size alonePaul A. Clayton2022/06/14 12:27 PM
        You can always add redundancy ... it is only money!Mark Roulo2022/06/14 01:56 PM
          You can always add redundancy ... it is only money!me2022/06/14 06:11 PM
            You can always add redundancy ... it is only money!anonymou52022/06/14 09:44 PM
              You can always add redundancy ... it is only money!John2022/06/15 04:34 PM
                You can always add redundancy ... it is only money!anonymou52022/06/15 07:09 PM
          You can always add redundancy ... it is only money!Paul A. Clayton2022/06/16 01:04 PM
        [quibble] Yield is not determined by size aloneBill K2022/06/14 02:52 PM
          Yield vs function...Björn Ragnar Björnsson2022/06/14 04:20 PM
            Yield vs function...Bill K2022/06/14 05:33 PM
  New article: Intel 4 Process Scales Logic with Design, Materials, and EUVanon2022/06/21 09:59 AM
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