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[業界消息] Reason why Intel delays IVB

Reason why Intel delays IVB

http://www.dailytech.com/Intel+L ... ch/article22719.htm
引用:
If there's one silver lining for Intel's competitors, it's that Mr. Bohr essentially admitted that yields weren't currently at production levels, though he insists that his company "is always surprised by how much yields improve at the last second."

In other words the first 3D transistor product from Intel (the 22 nm Ivy Bridge core) hasn't quite shipped yet.  But if Intel can deliver, it's competitors may be in as deep trouble as the veteran chipmaker claims.
好少有, 唔怪得之Intel要delay
45nm都唔係咁出事法

之前話2011推到22nm
http://www.xbitlabs.com/news/cpu ... _in_Production.html
http://www.tomshardware.com/news/Intel-22nm-CPU-core-2011,8710.html
http://www.dailytech.com/IDF09+I ... ap/article16312.htm

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引用:
原帖由 dom 於 2011-9-14 19:37 發表
Opps
連 Intel 都有 Yielding problem
FinFET唔係人咁品

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引用:
原帖由 Henry 於 2011-9-15 02:48 發表

AMD幾時用得?
GF: 22/16nm?

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其實而家單轉製程本身已經無乜得益
因為而家leakage又大, variation又高

e.g. 22nm
http://www.realworldtech.com/page.cfm?ArticleID=RWT031411013528
引用:
The single biggest cause of variation is random dopant fluctuation (RDF), where the dopant atoms that are implanted in the transistor channel are unevenly distributed. Once this was not an issue, however the size of transistors and the number of dopant atoms small enough that the density can fluctuate significantly.

Other contributors to variation are systematic, rather than random, and determined by the context of a transistor. Transistors can impact the performance of their neighbors, so a single transistor cannot be considered in isolation and depends on the context. For instance, strained silicon improves transistor performance, the strain is impacted by nearby layout structures.
以前Intel / AMD果d咩strained silicon呀, high-K metal gate呀,
low-K electric呀, restrictive design rules (例如gate-last)呀之類
22nm / 20nm全部都要用

講番Intel, 用FinFET會降低yield絕對唔出奇
不過佢仲有4個月搞, 有必要會respin,
如果1月都搞唔掂既話, 可能會縮小規模掛 (e.g. 先推4-core version)

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引用:
原帖由 Henry 於 2011-9-15 04:19 發表

8核應該無咁快,11月先出32nm,仲有一年時間.

所以22nm IVB-E係暫時唔會有消息.
你會錯意了, 最賺錢係2-core, 跟住4-core
可能由2個die變左1個die頂住先

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