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Vlasta
Joined: 15 May 2012
Posts: 2565
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 Posted: Mon Jul 07, 2014 8:52 pm Post subject: Some new nCube shots |
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I am quite liking these taken in natural light with a handheld camera - nice and sharp - sharp enough so that you can see the nCube logo with the naked eye!!
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Steve
Last edited by Vlasta on Mon Jul 07, 2014 11:55 pm; edited 1 time in total |
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aberco
Joined: 05 Sep 2013
Posts: 2655
Location: Paris France
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| Posted: Mon Jul 07, 2014 11:53 pm Post subject: |
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| Wow, now that's a cool wafer! |
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Vlasta
Joined: 15 May 2012
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| Posted: Mon Jul 07, 2014 11:55 pm Post subject: |
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It is my favorite too - I have 3 of them and 1 nCube1 wafer - I bought them off Robev - he has no more stock.... he says......
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best rgds.
Steve |
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Robev
Joined: 10 Mar 2006
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Location: New Zealand
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| Posted: Tue Jul 08, 2014 1:41 am Post subject: |
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| Vlasta wrote: | | It is my favorite too - I have 3 of them and 1 nCube1 wafer - I bought them off Robev - he has no more stock.... he says...... |
I have one left that is staying with me 
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henriok
Joined: 30 Dec 2007
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Location: Gothenburg, Sweden
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| Posted: Tue Jul 08, 2014 12:21 pm Post subject: |
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Sweet photos!
I'm curious why they didn't align the dies with the wafer more efficiently though. Pushing them just a bit to the left would have added four more good dies. That'd be a 17% increase in yield.
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Vlasta
Joined: 15 May 2012
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| Posted: Tue Jul 08, 2014 8:59 pm Post subject: |
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| henriok wrote: | Sweet photos!
I'm curious why they didn't align the dies with the wafer more efficiently though. Pushing them just a bit to the left would have added four more good dies. That'd be a 17% increase in yield. |
A very good point - that is the primary reason that bigger and bigger wafers are in use these days - more yielded dies on each wafer even if the dies size remains the same.
[url]
http://smithsonianchips.si.edu/ice/cd/CEICM/SECTION7.pdf[/url]
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aberco
Joined: 05 Sep 2013
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| Posted: Tue Jul 08, 2014 9:18 pm Post subject: |
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| It's a small wafer for such large dies. However yields on the edge are not good, so they may have optimized it for the most centered chips rather than the most complete ones. |
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