Eric P (eric.delete@this.nospam.com) on July 1, 2022 4:07 pm wrote:
> > In fact on 300 mm wafers, the area near the notch generally
> > is relatively badly behaved, compared to other areas
> > due to types of issues, and there were plans to do away with the notch on 450 mm wafers for similar reasons.
>
> The notch has been removed on current 300mm wafers, as you can see in the pictures linked below.
> What is used today to indicate the crystal orientation now that the notch is gone?
>
> semiaccurate.com/2022/05/20/intel-shows-off-future-wafers-at-vision
> semiaccurate.com/2015/11/12/samsung-shows-off-10nm-wafers-techcon
> wccftech.com/tsmc-rumored-to-hike-chip-prices-by-25-by-2021-end-as-alleged-workers-receive-no-overtime-pay
>
> TSMC has not updated their logo, which still has a notch on the wafer.

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