@raghu
You're over-estimating the amount of progress TSMC can make against Intel in terms of releasing qualified chips.
Or maybe you are underestimating them. TSMC's 20nm SOC was yielding at 50% in Q1 and given the nature of the yield ramp curve its not difficult to see them at 75 - 80% yields in Q3. The TSMC 20nm ramp is quite steep from Q3 2014 onwards.
http://investordiscussionboard.com/sites/default/files/post-attachments/113857/apple-tmsc.pdf
page 3
"20nm yields for Apple SOC are already hitting 50%, much better than where 28nm was at the similar time of ramp. Wafer out should hit 6 - 7k in May and reach 25 - 27k by July/August. SoC yield is typically more difficult to stabilize than Graphics or FPGA so this is indeed a strong result."
The amount of time between Intel's 22nm (and FinFET) release compared to TSMC's 20nm planar will be about 2 years (Apple) to 2.5 years (everyone else). Intel obviously got delayed for 14nm, but keep in mind they showed 14nm a year ahead of shipping devices Q4 2014. They could surprise and show Cannonlake earlier in the process.
Intel's 22nm FINFET cannot be compared with TSMC 20nm planar. Intel 22nm FINFET uses single pattern immersion litho and has no significant density advantage over foundries 28nm planar.
TSMC 20nm planar uses double pattern immersion litho and provides a 1.9x density increase over TSMC 28nm. TSMC 16FF+ adds another 15 - 20% density increase over TSMC 20nm.
You argued the quotes for TSMC's in regards to 16FF+ in performance (same), but 16FF+ will ship after 16FF (safe guess: 6-12 months). So at least a 1.5-2 year gap to Intel 14nm (using your 1 year baseline). By the time 16FF+ is shipping, Intel's 10nm is not far off.
the actual gap is 3 - 6 months behind TSMC 16FF with the vast majority of volume production at TSMC 16FF+
http://www.tsmc.com/uploadfile/ir/quarterly/2014/1aT1b/E/TSMC 1Q14 transcript.pdf
page 4
"Our 16 FinFET plus matches the highest performance among all available 16-nanometer and 14-nanometer technologies in the market today.
Compared to our own 20 SoC, 16 FinFET plus offers 40% speed improvement. The design rules of 16 FinFET and 16 FinFET plus are the same; IPs are compatible."
page 7
Randy Abrams - Credit Suisse - Analyst
I could ask a follow-up on the 16. Could you talk about the timing for the 16 regular version versus the plus version, if there is a difference on timing and also the customer adoptions? Then could you also talk about your expectation at this early stage on market share for the 16 node?
Elizabeth Sun - Taiwan Semiconductor Manufacturing Company Ltd - Director, Corporate Communications
So Randy, your question is with respect to the timing, the availability of the 16 FinFET versus the 16 FinFET plus. And then the way the customer adopts, whether they're more adopting 16 FinFET or the 16 FinFET plus?
Mark Liu - Taiwan Semiconductor Manufacturing Company Ltd - President & Co-CEO
Okay. 16 FinFET plus will be qualified in September. But remember, we and our customer work on 16 FinFET design one and a half years before. So all the customer already design -- the design is on 16 FinFET, okay. So the customer -- for those customers when the product tape out -- for example, we have a first product tapeout this month, it will ride on 16 FinFET process. And for those customers taped out in the second half, mostly, I would say mostly, will be riding on the 16 FinFET plus. So I would think majority of our process customers will run on 16 FinFET plus.
And looking into the volume for the next year, I would say that most of the product will be run on 16 FinFET plus. Okay, thank you."
https://markets.jpmorgan.com/research/email/-kjegkq4/GPS-1336259-0
page 3
"16nm designs getting good traction; more interest in 16nm FinFET Plus TSMC’s 16nm FinFET process is getting good traction, with multiple customers likely to tape out in 1H14. Our understanding is that the first silicon shuttle has already been completed successfully in Nov 2013, with good performance. We believe that Xilinx is likely to be the first customer to tape-out 16nm FF and should start wafer-in by late 4Q14, slightly ahead of schedule.
TSMC’s newly announced 16nm FinFET Plus process, which delivers 15% more performance than 16nm FF, is also seeing strong demand from mobile Fabless customers, given the further reduction in die size and increase in transistor performance. We believe that some of the mobile customers could migrate directly down to 16nm FinFET Plus from 20nm, given the additional die shrink makes it an attractive proposition. Contrary to bear- camp observations, however, we believe that there would only be a maximum of two quarter time gap between the 16nm FinFET and 16nm FinFET Plus versions."
For 10nm: your argument is that TSMC can easily catch up, but Intel has about a two year lead on 10nm design qualification; along with a functional test chip (according to Ashraf's comb through TSMC's most recent CC, and Intel's IDF). It is unrealistic to think TSMC who is just beginning to set up a R&D team can cut the gap to release by 75%. What's to say Intel's yields won't surprise to the upside and increase the gap? I think the gap is essentially the same for each node transition down to 10nm: 1.75 years with a chance of +/-a quarter. Each subsequent node may follow the same pattern.
How did you come to the conclusion that TSMC is just now starting on 10nm R&D ? TSMC have stated that 10nm risk production starts in late 2015 which puts it 2 years behind TSMC 16 FINFET which went into risk production in late 2013. This means 10 nm volume production is slated for late 2016 or early 2017. A bleeding edge FINFET process today takes 4 -5 years to develop. So TSMC is well underway with 10nm R&D.
http://www.tsmc.com/uploadfile/ir/quarterly/2014/1aT1b/E/TSMC 1Q14 transcript.pdf
page 4
"For 10 FinFET, 10 FinFET offer TSMC's third generation FinFET transistor, designed to meet the power and the performance requirement of mobile computing devices. 10 FinFET will offer greater than 25% speed improvement, the same total power, compared to 16 FinFET plus. More importantly, 10 FinFET offer greater than 45% total power reduction at the same speed, compared to 16 FinFET plus.10 FinFET will offer 2.2X of density improvement over its previous generation, 16 FinFET plus. So, currently, 10 FinFET development progress is well on track, but risk production will be in 4Q 2015."
You could choose not to believe TSMC while others could choose to believe. Finally the customer products will be the verification of the correctness of the process roadmap. Qualcomm is already shipping 20nm modems and will be available in Samsung Galaxy S5 LTE-A phones in July. When Apple A8 is launched in the iPhone 6s and iPad Air 2, it will be proof of TSMC's execution. Same for A9 at TSMC 16FF+. There is a strong likelihood that Apple multi sources Apple A9 from TSMC/Samsung.