Still there, I think ...

By: Mark Roulo (nothanks.delete@this.xxx.com), July 1, 2022 8:31 pm
Room: Moderated Discussions
Eric P (eric.delete@this.nospam.com) on July 1, 2022 5:26 pm wrote:
> > I think the notch is still there. It seems to be in the Intel image.
>
> > In the 1st and 2nd image it looks to be around 5 o'clock.
>
> > In the 3rd image just above (and in the middle of) the "ra" in semiaccurate
>
> Thank you for pointing that out. I was referring to the flat section (segment of a circle), like
> on the TSMC logo. I didn’t notice the V notch before but I agree the Intel wafers do have a V notch.
> Even the Samsung and TSMC wafers seem to have a V notch at 6 o’clock, but it is less clear due
> to lighting highlights. I guess this V notch is now used to indicate the crystal orientation.

I think the flat went away with 200 mm wafers. 150 mm and smaller have flats.
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TopicPosted ByDate
OK dumb question timeDoug S2022/06/24 12:31 PM
  OK dumb question timeanon52022/06/24 12:38 PM
  Silicon ingots are round.Mark Roulo2022/06/24 01:29 PM
    Silicon ingots are round.Squarehead2022/06/24 01:38 PM
      Silicon ingots are round.Mark2022/06/24 02:00 PM
        Silicon ingots are round.Gary Kopp2022/06/24 02:20 PM
      Silicon ingots are round.Adrian2022/06/24 10:34 PM
    Silicon ingots are round.tarlinian2022/06/24 02:38 PM
      Silicon ingots are round.Doug S2022/06/24 10:13 PM
        Silicon ingots are round.anon2022/06/25 10:34 AM
          Silicon ingots are round.Doug S2022/06/25 10:39 AM
            Silicon ingots are round.Groo2022/06/26 08:41 AM
              Silicon ingots are round.Doug S2022/06/26 11:05 AM
                Silicon ingots are round.Gtoo2022/06/26 01:55 PM
          Silicon ingots are round.rwessel2022/06/25 10:43 AM
            Not reallyGroo2022/06/26 08:39 AM
              Not reallydmcq2022/06/26 09:56 AM
                Not reallyGroo2022/06/26 01:58 PM
              Not reallyanon22022/06/26 04:22 PM
              Why not triangles? Anon2022/06/27 02:34 AM
                Why not triangles? Math Nerd2022/06/27 03:52 AM
                Why not triangles? Math Nerd2022/06/27 04:45 AM
                  Don't forget Penrose Tiling (NT)ananon2022/06/27 05:06 AM
                  Why not triangles? Doug S2022/06/27 06:43 AM
                  Why not triangles? Anon2022/06/27 07:33 AM
                    Die shape that minimizes wasted area on circular wafersMath Nerd2022/07/01 08:20 PM
                      Die shape that minimizes wasted area on circular wafersBrett2022/07/02 01:35 PM
                        Die shape that minimizes wasted area on circular wafersMath Nerd2022/07/02 03:15 PM
                        Die shape that minimizes wasted area on circular wafersMark Roulo2022/07/02 03:41 PM
                          Die shape that minimizes wasted area on circular wafersDoug S2022/07/02 05:44 PM
                          Die shape that minimizes wasted area on circular wafersBrett2022/07/02 11:31 PM
                            Die shape that minimizes wasted area on circular wafersAdrian2022/07/03 09:25 PM
                              Die shape that minimizes wasted area on circular wafersanon22022/07/03 10:33 PM
                                Die shape that minimizes wasted area on circular wafersBrett2022/07/03 11:45 PM
                                  Die shape that minimizes wasted area on circular wafersdmcq2022/07/04 05:09 AM
                                    Die shape that minimizes wasted area on circular wafersJames2022/07/04 08:52 AM
                                      Die shape that minimizes wasted area on circular wafersdmcq2022/07/04 09:26 AM
                                        Die shape that minimizes wasted area on circular wafersAdrian2022/07/05 02:28 AM
                                      Cannon Lake vs Kaby LakeMark Roulo2022/07/04 09:30 AM
                                        C-class bonusesblue2022/07/04 11:27 AM
                                          C-class bonusesanonymou52022/07/04 02:23 PM
                                  Die shape that minimizes wasted area on circular wafersanon22022/07/04 05:53 AM
                                    Die shape that minimizes wasted area on circular wafersBrett2022/07/04 11:32 AM
                                      Die shape that minimizes wasted area on circular wafersFoyle2022/07/04 12:30 PM
                                        Die shape that minimizes wasted area on circular wafersAnon2022/07/04 12:37 PM
                                          What is a mirrored die?Mark Roulo2022/07/04 01:59 PM
                                            What is a mirrored die?Brett2022/07/04 02:32 PM
                                              What is a mirrored die?Doug S2022/07/04 09:08 PM
                                        Die shape that minimizes wasted area on circular wafersanonymou52022/07/04 02:12 PM
                                          Die shape that minimizes wasted area on circular wafersFoyle2022/07/05 09:41 AM
                                      Die shape that minimizes wasted area on circular wafersanon22022/07/04 03:52 PM
                                        Die shape that minimizes wasted area on circular wafersUngo2022/07/05 05:24 PM
                                          Die shape that minimizes wasted area on circular wafersBrett2022/07/05 06:56 PM
                                            Die shape that minimizes wasted area on circular wafersanonymou52022/07/06 04:46 AM
                                              Die shape that minimizes wasted area on circular wafersdmcq2022/07/06 01:55 PM
                                                Die shape that minimizes wasted area on circular wafersMark Roulo2022/07/06 03:09 PM
                                                Die shape that minimizes wasted area on circular wafersDoug S2022/07/06 04:31 PM
                                      Example of mirrored wafer?Mark Roulo2022/07/04 05:01 PM
                                  Not the same as 3-core CPU from a 4-core dieMark Roulo2022/07/04 08:31 AM
                                Wafer probingAdrian2022/07/05 02:08 AM
                                  Great comment, thank you (NT)anon22022/07/05 11:00 PM
                crystal latticehobold2022/06/27 11:09 AM
                  crystal latticedmcq2022/06/27 02:58 PM
                  Given path dependency I doubt it ...Mark Roulo2022/06/27 05:02 PM
                    Given path dependency I doubt it ...Adrian2022/06/27 09:01 PM
              Hexagonal DieMath Nerd2022/06/27 04:05 AM
                Hexagonal DieAdrian2022/06/27 09:24 PM
                  Hexagonal Diedmcq2022/07/06 02:00 PM
          Silicon ingots are round.dmcq2022/06/25 01:38 PM
            Silicon ingots are round.dmcq2022/06/25 01:43 PM
          Silicon ingots are round.aaron spink2022/06/25 02:05 PM
      Notch on Silicon WafersEric P2022/07/01 03:07 PM
        Still there, I think ...Mark Roulo2022/07/01 03:47 PM
          Still there, I think ...Eric P2022/07/01 04:26 PM
            Still there, I think ...tarlinian2022/07/01 05:50 PM
              Still there, I think ...David Kanter2022/07/02 08:14 AM
            Still there, I think ...Mark Roulo2022/07/01 08:31 PM
              Still there, I think ...Eric P2022/07/01 11:10 PM
  OK dumb question timeanonymouse2022/06/24 02:47 PM
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