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dynamited77
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Show me the 20nm
dynamited77   10/3/2013 2:00:17 AM
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Doesn't look like they got anything at 20nm working above 3ghz, no gen2+ pcie or hdmi. Got to wonder what sort of pll their making, also. Guess they got three more months to actually sell a 20nm this year. BTW, no talk of yield?

resistion
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Re: 20nm costs
resistion   10/3/2013 12:42:06 AM
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The double patterning paranoia was apparently a scheme to justify large investments (i.e., EUV) and scare away smaller (i.e., not Intel, TSMC, Samsung) firms.

goafrit
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Re: 20nm costs
goafrit   10/2/2013 8:16:18 PM
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Wait for carbon tubes to redesign this roadmap.  This obsession with smaller feature size is not a roadmap for long haul, it is a marketing message to show innovation. I do not see that value - moving from 22nm to 16nm. I know it was a big deal from 3.3um to 90nm

krisi
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Re: 20nm costs
krisi   10/2/2013 5:05:21 PM
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thankyou @ScottenJ, makes sense

ScottenJ
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Re: 20nm costs
ScottenJ   10/2/2013 4:59:22 PM
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As it says in the article 28nm to 20nm is 1.9x increase in die and 28nm to 16nm is a 2.0x increase in die, therefore 20nm to 16nm is a 1.05x increase in die.

Basically at 16nm TSMC is going to use their 20nm BEOL and put multigate in the FEOL.

I say multigate because I don't yet know whether they will be FinFETs or Trigate which although many people use the terms interchangably they actually are not the same thing.

krisi
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Re: 20nm costs
krisi   10/2/2013 4:02:26 PM
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why 1.05x between 30nm and 16nm???

ScottenJ
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Re: 20nm costs
ScottenJ   10/2/2013 3:22:48 PM
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20nm is about 24% more expensive per unit area and with 1.9x more die gives a 35% cost reduction. The problem is at 16nm where the 1.05x more die than 20nm will not offest the increased cost per unit area and the cost per die will go up.

R_Colin_Johnson
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Re: 20nm costs
R_Colin_Johnson   10/2/2013 1:23:40 PM
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Very comprehensive report on progress at TSMC. Thanks. And your question about costs at 20nm node are very pertinent--especially now that Intel claims to already be at the 14nm node and selling its overcapacity as foundry services to Altera and otehrs!

 

rick merritt
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20nm costs
rick merritt   10/2/2013 10:13:05 AM
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How much higher aree costs at 20nm where double patterning kicks in? Enquiring minds want to know!

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As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

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