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• #90 Busterftw veterán Abu85 #88

  Új Válasz 2021-09-23 00:01:56 #90

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  Busterftw

  veterán

  válasz Abu85 #88 üzenetére

  Kár, hogy erre nincs semmi forrásod, meg úgy amúgy az egész interneten nincs. Technológiai iránymutatás van, követelmény nincs. Ez az IRDS dolga, ezért jött létre. Ezen túl viszont nincs más hatásköre. Ezért is frissítik évről évre.

  Egy példa cikk a témában, a sok közül.

  "From roughly the 1960s through the end of the 1990s, nodes were named based on their gate lengths."
  "For a long time, gate length and half-pitch matched the process node name, but the last time this was true was 1997. The half-pitch continued to match the node name for several generations but is no longer related to it in any practical sense. "
  "The numbers that we use to signify each new node are just numbers that companies pick."
  "But as progress has gotten slower, we’ve seen companies lean more heavily on marketing, with a greater array of defined “nodes.”

  " Samsung, for example, is deploying many more node names than it used to. That’s marketing."

  " Overall, however, Intel’s 10nm process hits many of the key metrics as what both TSMC and Samsung are calling 7nm."

  "When a foundry talks about rolling out a new process node, what they are saying boils down to this:
  “We have created a new manufacturing process with smaller features and tighter tolerances. In order to achieve this goal, we have integrated new manufacturing technologies. We refer to this set of new manufacturing technologies as a process node because we want an umbrella term that allows us to capture the idea of progress and improved capability.”

  Wikichipről:

  Meaning lost:
  "Due to how the transistor changed dramatically from how it used to be, the current naming scheme lost any meaning. "

  "Historically, the process node name referred to a number of different features of a transistor including the gate length as well as M1 half-pitch. Most recently, due to various marketing and discrepancies among foundries, the number itself has lost the exact meaning it once held."

  " Since around 2017 node names have been entirely overtaken by marketing with some leading-edge foundries using node names ambiguously to represent slightly modified processes. Additionally, the size, density, and performance of the transistors among foundries no longer matches between foundries."

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