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"-Intel exec says fabless model 'collapsing"-'fab' or reality-?

5/5/2012

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We have a guest contribution from Zvi Or-Bach, the President and CEO of MonolithIC 3D Inc. Zvi discusses about the latest news regarding the reversal of the trend from Foundry model back to the IDM model.

Are we facing a dramatic reversal of the trend from the Foundry model back to the IDM model???

Recently Rick Merritt of EE Times reported on his interview with Mark Bohr, "Mr. Process Technology at Intel," and wrote: "It’s the beginning of the end for the fabless model according to Mark Bohr."

Quite naturally this caused many responses, with the majority of them hinting that Intel is trying to break into the smart mobile space by sowing doubt in the future of the existing ecosystem around TSMC-ARM and multiple fabless vendors.

We recently wrote two very relevant blog entries:

Is NVIDIA in a Panic? If so, what about AMD? Other fabless companies? 04/02/2012
and
Why Samsung will give Morris Chang sleepless nights 02/05/2012


With recent reports about Qualcomm having issues with TSMC, Apple not being able to shift out from Samsung (their competitor) to TSMC, AMD having severe issues and trying to shift some of manufacturing from GlobalFoundries to TSMC, and straight out statements such as:  "NVIDIA deeply unhappy with TSMC, claims 20nm essentially worthless," one can't avoid the question: Are we facing a dramatic reversal of the trend from the Foundry model back to the IDM model???


It does seem that advanced scaling these days provides a significant advantage to the integrated model, where trade-offs between design, library EDA, and manufacturing, provide a better end product. Such an integration advantage manifests itself with respect to yield, now that the majority of the yield losses are design-related rather than random defects, and to manufacturing cost, as some of the layers needs double or even triple/quad patterning. 


Accordingly, this might explain why both TSMC and GlobalFoundries recently announced investment in 3D IC processing lines (TSMC plans 3-D IC assembly launch early in 2013, GlobalFoundries installs gear for 20-nm TSVs). As the current scaling trend works against them, they both chose to move the game to a court where an ecosystem would be more powerful than corporate vertical integration.


We at MonolithIC 3D Inc. are very pleased to see 3D ICs becoming a key business strategy, and truly believe that adding monolithic 3D manufacturing capabilities will extend foundries’ strategic benefits even further. Monolithic 3D, with its 10,000x better vertical connectivity, provides an exciting alternative to pure dimensional scaling. Moore's law is about doubling the number of transistors, which could be easily achieved using existing process and lithography by simply doubling the number of layers carrying transistors. Scaling through the third dimension provides power, speed, and cost benefits similar – or even better -- than we once used to get from dimensional scaling (see "Why Monolithic 3D" for more information).


In addition, monolithic 3D provides benefits that cannot be achieved with dimensional scaling such as pulling out embedded memory into another layer on top of the logic. In a typical SoC the embedded memory may represent 50% of the die area and include hundreds of memory macros, requiring too many vertical connections for TSV but is a very simple task for monolithic 3D integration. A dedicated memory layer also allows optimizing the first layer for logic and the second layer for memory, which could be even a DRAM rather than SRAM, and would need fewer costly metal layers. Another advantage is the realization of logic-cone-level logic redundancy, as described in Monolithic 3D IC Could Increase Circuit Integration by 1,000x and in Redundancy & Repair with Monolithic 3D.


In summary, the current trend in the semiconductor industry indicates that IDMs have a significant advantage in the leading edge dimensional scaling race. Foundries recognize it and are responding by adding 3D capabilities. They could do even better by also adding monolithic 3D. 
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Is NVIDIA in a Panic? If so, what about AMD? Other fabless companies?

4/2/2012

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We have a guest contribution from Zvi Or-Bach, the President and CEO of MonolithIC 3D Inc. Zvi discusses NVIDIA's presentation at the International Trade Partner Conference (ITPC) forum last November.

Recently I read a very uncommon report title: "NVIDIA deeply unhappy with TSMC, claims 20nm essentially worthless". Quoting directly: “One of the unspoken rules of customer-foundry relations is that you virtually never see the former speak poorly of the latter. Only when things have seriously hit the fan do partners like AMD or NVIDIA admit to manufacturing problems... That’s why we were surprised - and our source testified to being stunned - that Nvidia gave the following presentation at the International Trade Partner Conference (ITPC) forum last November”
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Figure 1
The only explanation I can come up with is that NVIDIA is in a panic. And according to Andy Grove’s “Only the Paranoid Survive” I believe NVIDIA will overcome the challenge, and at the later part of this blog we will present our view for an action plan. But first let’s try to understand what the issue is about.

It all starts with the diminishing return of dimensional scaling. This time it is about costs. Dimensional scaling requires continual improvements in lithography capability, and is primarily driven by the rapidly escalating cost of lithography, as illustrated by the following chart:
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Figure 2
Now that the cost of lithography dominates the cost of Fabs and accordingly the cost of a finished wafer, the cost reduction associated with getting more dies per wafer (scaling) becomes neutralized by the higher cost of wafers. This was recently articulated in View Point in EE Times by Dr. Handel Jones and illustrated by the following chart.
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Figure 3
Furthermore, pure foundry leader TSMC publicly showed the issue as seen in the following chart
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Figure 4
And accordingly the following charts from NVIDIA present the same trend in a very clear way:
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Figure 5
Moreover, another chart by NVIDIA shows the higher cost of wafers eating away at the benefits of dimensional scaling:
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Figure 6
But this is clearly not TSMC’s fault. So why: "NVIDIA deeply unhappy with TSMC, claims 20nm essentially worthless"? And why would NVIDIA care? If the price will stop going down they should be happy to be able to charge more as long as their competitors need to do the same. And it is hard to believe AMD would see different curves from TSMC??

But careful review of the bullet slide above and the bullet slide below might reveal NVIDIA’s underlying  concerns.
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Figure 7
Both slides indicate real concerns and reflect some form of panic.

It seems to me that the key words are “Virtual IDM”, which are the only highlighted words of the second bullet slide but do appear also in the first one.
“When business ($) gets in the way, apply “First principle”, the principle of one company, one virtual IDM company”. I was not aware of this “First principle”. I thought our first principle is open competition, and individual companies are supposed to work as such and not as one company I believe we have some laws - Antitrust - against acting as one company instead of individual company.
Yet, NVIDIA does have one strong IDM competitor - Intel. Could it be that Intel’s costs are different??

I don't know but it does remind me of a previous blog I wrote: Required Change in EDA Vendors’ Role and Reward vs. Scaling Yield. In that blog we tried to understand the implication of dimensional scaling on yield, and more specifically on the systematic yield losses which are design related. The following chart was presented then
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Figure 8
In that blog we suggested that an IDM would have a significant advantage over the “partnership” of Fabless-Fab-EDA.

Looking again on the cost related chart one can clearly see NVIDIA pointing to the importance of yield. But I believe they should not blame just TSMC as it would seem to me that the EDA part is just as important.
NVIDIA, TSMC and the other fabless companies and partners (EDA, etc.) should strategically consider the issues associated with dimension scaling, which seem to strongly benefit the IDMs. Such strategic evaluation should include a serious look into the better alternative to dimensional scaling - the monolithic 3D, or as we call it, scaling Up!!!
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"Chip 2020" - The End of Scaling is 2020 - or not - Book Review

3/5/2012

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We have a guest contribution from Zvi Or-Bach, the President and CEO of MonolithIC 3D Inc. Zvi discusses about "Chip 2020" book review. 

A recent book review by Peter Clarke on this wonderful new book by Bernd Hoefflinger caught my eye, and also reminded me of an old connection I have with Hoefflinger.

Early in the 90's I had the pleasure to collaborate with Hoefflinger, who at that time was the director of the Institute for Microelectronics Stuttgart (IMS CHIPS). I was the CEO of Chip Express then and we worked together to demonstrate that applying Direct-Write-eBeam to a Chip Express wafer could lead to a very effective Gate-Array prototyping scheme and to low volume production of those Gate-Arrays.

It was great pleasure to reconnect and to read "Chip 2020"
I highly recommend this book as it provides an update view of the Semiconductor Industry by a group of known experts in our field.
The book provides a concise review how we got here and what is ahead for us up to the year 2020.

The book presents a now more common view that the scaling that got us here is gone, and that there are concrete red-bricks for dimensional scaling beyond 2020. Primarily:

1. As gate sizes reach ~10nm we would have nominally 6 atoms of impurity in the channel with a commensurate variation that would constrain effective use of the transistor -see Fig. 1.1

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2. As lithography tools are already forced to use double exposure/processing it has became unclear if an effective lithography is going to be available to move forward. See the Table 8.3 below, provided by Burn J. Lin of TSMC
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Clearly the future cost of lithography eats away at the cost advantage of dimensional scaling.

Hoefflinger presents some options to tackle these challenges as detailed through the book and with respect to specific segments of the industry. The following Fig. 3.1 presents these future technologies:

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At MonolithIC 3D we were pleased to see the important role given to 3D IC in the book as shown in the Fig. 3.1 above.

In short I fully agree with Peter Clarke’s statement: "The book offers some far-reaching and fundamental insights" and I highly recommend the book to semiconductor technologists who are looking forward toward the next decade of progress in the field.


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Monolithic 3D IC Could Increase Circuit Integration by 1,000x

12/15/2011

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We have a guest contribution from Zvi Or-Bach, the President and CEO of MonolithIC 3D Inc. Zvi introduces a very interesting idea that could have huge implications for high-performance computing.


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"Achieving Success In The Age of Nano Tech"

10/20/2011

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We have a guest contribution today from Zvi Or-Bach, the President and CEO of MonolithIC 3D Inc. In this post, Zvi shares his perspective on where the industry is going after attending the recent Future Horizons conference (IEF-2011).


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The Boiling Frog Syndrome and the Semiconductors Industry

9/15/2011

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We have a guest contribution today from Zvi Or-Bach, the President and CEO of MonolithIC 3D Inc. In this post, Zvi shares his perspective on where the industry is going.


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Embracing Talent as a Path for Long Term Sustained Recovery of US Economy

8/11/2011

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We have a guest contribution today from Zvi Or-Bach, President and CEO of MonolithIC 3D Inc. In this blog-post, Zvi discusses a topic he is passionate about: immigration policy for the United States.


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MonolithIC 3D is a Finalist of the “Best of Semicon West”!

7/7/2011

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We have a guest contribution today from Zvi Or-Bach, MonolithIC 3D Inc.'s President and CEO. Zvi talks about some good news we received from the Semicon West committee recently.


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Guest Contribution: Invited Talk at the 3D satellite workshop at the TIPP2011

6/16/2011

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This week has been a busy week for our company. We were invited to speak at three different forums across the continent! Zvi Or-Bach, our President and CEO, went to Chicago to speak at a 3D workshop at the TIPP 2011. I went to speak at a 3D workshop at San Jose and Brian Cronquist, our VP of Technology, went to Canada to speak at the CMOS Emerging Technologies workshop. In this blog-post, Zvi discusses his time at the 3D workshop @ Chicago.


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Guest Contribution: Embedded Memory and Monolithic 3D

6/2/2011

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We have a guest contribution today from Zvi Or-Bach, the President and CEO of MonolithIC 3D Inc. In this post, Zvi discusses the implications of monolithic 3D for embedded memories.


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