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michigan0
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FinFET vs.FDSOI
michigan0   9/28/2013 5:44:33 PM
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Here are some important facts about FDSOI technology. FDSOI was invented by IBM over a decade ago, but still not manufacturable at any technology node yet despite of enormous efforts and resouces were spent by IBM research and its International SOI consortium mainly because Soitec, the largest SOI wafer supplier can't deliver 7 nm thin SOI that is required for manufacturing of 28 nm FDSOI. AT 2011 SOI Conference at Phoenix, AZ Soitec announced that what it could deliver is 12 nm thin SOI wafer, not 7 nm SOI. For FDSOI at 20/22 nm an extremely thin 5 nm SOI is required to overcome the short channel effects or transistor leakage current. That is why FDSOI still not manufacturable even at 28nm today, and will not be manufacturable at 20/22 nm and beyond. FinFET is only technology in volume manufacturing for a couple of years at 22 nm by Intel, and 14 nm in late this year. TSMC appears to introduce its FinFET manufacturing in 2014. Beauty of FinFET is that it is extendable to the end of scaling according to FinFET physics. FDSOI can't contest with FinFET. There is alternative to FinFET today. Skim 

KB3001
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CEO
Re: Nice job...
KB3001   9/28/2013 10:31:28 AM
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That's what I think too, Kris, finFET for high performance and FDSOI for low power, or may be a combination of the two??

krisi
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Re: Nice job...
krisi   9/28/2013 10:25:04 AM
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Yes, they are very different technologies...finFET exploits silicon surface in a third dimension so you would expect every good Ion current but probably some difficulties in controlling Ioff...FDSoi takes advantage of thin silicon body so Ioff leakage is-likely easier to control but Ion values are not as good....so I think finFET will be better for high speed and FDSOI better for very low power...Kris

KB3001
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CEO
Re: Nice job...
KB3001   9/28/2013 6:39:01 AM
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I heard conflicting messages about this Kris (finFET vs FDSOI). Some say FDSOI controls leakage better than fitFET and is much easier to design. As such it will be the technology to succeed. Others say finFET is already the winner. I guess the proof of the pudding is in the eating....

krisi
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CEO
Re: Nice job...
krisi   9/27/2013 2:35:48 PM
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I think Intel is still doing finFET

wilber_xbox
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Manager
Re: Nice job...
wilber_xbox   9/27/2013 1:33:20 PM
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I wonder why Intel is holding back its progress on 14nm FinFET. Looks like its TSMC vs rest in IEDM.

krisi
User Rank
CEO
Re: Nice job...
krisi   9/27/2013 1:20:41 PM
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Yes, this is increasing complex field with smaller number of increasing larger players being involved...finFET vs FDSOI...any best who is going to win? Kris

rick merritt
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Author
Nice job...
rick merritt   9/27/2013 12:49:31 PM
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...sorting through a ton of deeply technical material to find a core competitive ground.

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