GlobalFoundries Stops All 7nm Development: Opts To Focus on Specialized Processes
by Anton Shilov & Ian Cutress on August 27, 2018 4:01 PM EST- Posted in
- Semiconductors
- CPUs
- AMD
- GlobalFoundries
- 7nm
- 7LP
What’s Next for GlobalFoundries?
In lieu of pursuing a 7nm platform, GlobalFoundries will be embarking on a multifaceted strategy for revenue and profitability. This strategy includes scaling out the 14LPP/12LP platform for various applications that are set to emerge in the 5G era, continuing to evolve the FD-SOI platform, spinning off its ASIC development business, further supporting its existing clients with their 14LPP/12LP products, and some other things.
Scaling Out the 14LPP/12LP
Originally designed for mobile SoCs and some other chips in mind, GlobalFoundries' 14LPP manufacturing technology is used to make CPUs and GPUs at GlobalFoundries. Furthermore, the company has designed two variations of this fabrication process. Whereas the base process used up to 13 metal layers and 9T libraries, 14HP was developed specifically for IBM and tailored for performance at the cost of transistor density, using up to 17 metal layers and 12T libraries. Meanwhile, 12LP — aimed at a broad spectrum of applications, including APUs/CPUs, automotive and other — uses 13 layers and 7.5T libraries, giving a 10% additional performance or power improvement as well as a 15% area reduction vs. the 14LPP.
Going forward, GlobalFoundries plans to offer a broader spectrum of technologies based on its 14 nm node. The move is not truly surprising. Samsung Foundry also offers three versions of its 14 nm processes: 14LPP for high-performance SoCs, 14LPC for compact SoCs, and 14LPU for ultra-low-power chips. So far, GlobalFoundries has confirmed three key markets of its future FinFET process technologies: RF, embedded memory, and low-power. In addition, the company plans to offer its 14LPP/12LP platform with enhanced performance and/or higher transistor density (for cost reduction). To do so, the company will be leveraging the knowledge and techniques they developed as part of the 7LP platform. But naturally Gary Patton does not want to disclose the nature of these innovations or any actual performance targets.
If the company succeeds in the integration of RF capabilities into FinFET-based chips, that will be a world’s first. In theory, such chips would have a notable edge over existing RF solutions, which are made using rather rough process technologies. In addition to regular RF capabilities, GlobalFoundries plans to offer features for mmWave radios. Embedded MRAM will also be another important feature of SoCs made using a FinFET fabrication tech as, again, nobody uses such transistors for embedded memory right now.
At the moment, GlobalFoundries is still forming its new development teams, so we do not know exactly how many projects the company will eventually work on. Meanwhile, keep in mind that any project started today will materialize at best in 2020, with actual products going into HVM in 2021. This will be in time for various devices for high-growth markets, but AMD will naturally wind down its 14LPP/12LP orders to GlobalFoundries over the 2019 – 2020 timeframe, reducing the company’s revenue and profits. Note that at present both the RF and embedded memory technologies for FinFET are in a pathfinding stage, so it is very hard to say when exactly GlobalFoundries comes up with appropriate process technologies.
Investing in FD-SOI
In addition to developing specialized versions of its FinFET-based process technologies, GlobalFoundries will continue to invest in its FDX-branded FD SOI-based platforms, such as 22FDX and 12FDX. Gary Patton did not pre-announce any new versions of the company’s FD-SOI fabrication processes, but clearly indicated that the FDX will remain very important for GlobalFoundries, which is not surprising as GF and Samsung Foundry are the only foundries to offer this tech.
Spinning Off ASICs
Designing chips for a new process technology is always a challenge both from engineering and financial points of view, especially for smaller companies. In a bid to help its customers to develop various SoCs, GlobalFoundries established its ASIC Solutions (ASICs) division, which helps the company’s customers in designing chips. Besides usual things like process development kits (PDKs), various design libraries, silicon-proven memory solutions, interfaces, and other necessary things, ASICs offers support from chip design, methodology, test and packaging teams.
Obviously, GlobalFoundries’ customers going forward will benefit from ASICs IP and teams. However, to ensure that the division continues to attract high-volume work, GlobalFoundries will spin it off and enable it to work with process technologies from other contract makers of semiconductors.
The Fate of EUV Tools
One of the questions we asked GlobalFoundries during a briefing concerning its strategic shift was about the fate of two ASML Twinscan NXE machines installed in Fab 8. At this point the company has not made any decisions, but it intends to consult with ASML and find out what would be the best use of these tools. In theory, GlobalFoundries could keep them to speed up prototyping or even production, but since they require a special treatment, keeping them without using them extensively for HVM may not be a good idea.
Some Thoughts
Until today, GlobalFoundries, Samsung Foundry, and TSMC were the only three remaining contract makers of semiconductors to offer leading-edge process technologies for logic. With GF dropping out from the race, Samsung and TSMC will be the only contract foundries remaining. (While Intel technically has foundry operations, they've had minimal impact on the industry).
For GlobalFoundries, the move has pros and cons. On the one hand the lion’s share of semiconductor industry revenue will be earned from chips made using ’12 nm’ and larger nodes even in 2022, according to Gartner’s findings and cited by GlobalFoundries. Evidently, by not competing for the leading edge, GF will reduce its R&D costs and necessity to build ultra-expensive EUV fabs for 2020 and onwards. Moreover, with specialized technologies sometimes tailored for particular clients, the company will better avoid directly competing against Samsung and TSMC in certain cases. Nonetheless, said foundries are going to compete for emerging devices as well, so they are going to design their own specialized fabrication processes (Samsung in particular will need them for itself). Therefore, GlobalFoundries is not exactly jumping into a blue ocean here.
What remains to be seen is how well GlobalFoundries manages to execute on the timely development of multiple new manufacturing processes and land new customers to fill Fab 8. The company will keep working with AMD for many years to come in fabbing current-generation CPUs and GPUs, and then switching exclusively to wafers with embedded APUs/GPUs as well as with first-gen EPYC dies, as these products have very long lifecycles. However, the number of wafers GlobalFoundries processes for AMD will be dropping rapidly starting from 2019. Whether GF will be able to substitute AMD’s orders with orders from enough smaller players to Fab 8 full utilized is something only time will tell.
While it is sad to see GlobalFoundries leaving the ‘bleeding edge’ field, it is evident that the company’s odds against Samsung and TSMC were not high enough for the owner and the management to take the risks. Therefore, it looks like ‘scaling out’ by offering a set of specialized (and maybe even unique) process technologies instead of ‘scaling up’ and offer another ‘bleeding edge’ node might just be a better bet for GlobalFoundries.
Related Reading:
- Change of Strategy: A New GlobalFoundries CEO in Dr. Thomas Caulfield
- The Future of Silicon: An Exclusive Interview with Dr. Gary Patton, CTO of GlobalFoundries
- GlobalFoundries Announces 22FDX Milestone: $2 Billion in Design Wins
- GlobalFoundries Gives 7 nm Capacity Update, Mulls Skipping 5 nm
- GlobalFoundries Weds FinFET and SOI in 14HP Process Tech for IBM z14 CPUs
- GlobalFoundries Adds 12LP Process for Mainstream and Automotive Chips; AMD Planning 12LP CPUs & GPUs
- GlobalFoundries Details 7 nm Plans: Three Generations, 700 mm², HVM in 2018
- GlobalFoundries to Expand Capacities, Build a Fab in China
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phoenix_rizzen - Monday, August 27, 2018 - link
It's mentioned in the article that AMD is targetting TSMC 7nm.eastcoast_pete - Tuesday, August 28, 2018 - link
That's one of the open questions here. 80% of TSMC's 7 nm capacity is contractually bound for Apple's needs, leaving precious few wafers for everybody else. eetimes published an interesting article on this a few days ago. Basically, players like Qualcomm and Huawei (HiSilikon) will likely have to get chummy with Sammy if they want their 855 Snapdragon in 7 nm in usable quantities, because Samsung is now the only other fab operator supposedly close or ready for 7 nm. I do wonder where all the other 7 nm silicon for EPYCs, Ryzens, and assorted GPUs is supposed to come from now with GloFo out. AFAIK, TSMC is currently the only player with a 7 nm fab fully up-and-running, and that fab is very busy (and contractually obligated) to make all the A12 chips it can. So, this pull-back by GloFo is great news for Samsung; wouldn't surprise me if their stock just jumped a bit.BurntMyBacon - Tuesday, August 28, 2018 - link
Good news for Samsung, sure. However, they are only an option for AMD if they can get the yields up. Historically, Samsung's process has been competitive with other contract fabs. Though (if I recall correctly), they've struggled with larger chips. ARM chips targeted at phone should be good (they need that for their own chips), but larger ARM chips targeted at servers and larger GPUs have historically been problematic. It is uncertain if large, high performance x86 chips would work out well. If Apple moved a large portion of their orders to Samsung, then TSMC might have the capacity to service all these larger chips. However, with so much of the TSMC capacity tied up by Apple, AMD will likely need to prioritize either CPUs or GPUs. Given recent history, I suspect they will favor server CPU production and probably back down on high end GPUs. Perhaps we'll get another round of smaller mid-range GPUs fabricated at Samsung. Unless Samsung suddenly develops proficiency for fabricating larger chips or TSMC suddenly frees up significant capacity, I suspect this bodes very poorly for competition in high end GPUs.dogzilla - Monday, August 27, 2018 - link
I think they are saying that the company isn't big enough to pay for the investment to continue process development at 7 nm and below. You have to make enough wafers to spread the development cost around, and they are just too small, make too few wafers. I worked at companies that have made this same decision, it's called a going out of business strategy. Any customers that might need to migrate to 7 nm and smaller will move elsewhere, usually they are the more profitable customers.Zoomer - Tuesday, August 28, 2018 - link
Exactly. What are you going to sell in 5, 10, 15 years time?PhrogChief - Monday, August 27, 2018 - link
'Strategical' is NOT a word.levizx - Tuesday, August 28, 2018 - link
And the Earth is flat.https://www.dictionary.com/browse/strategical
https://www.thefreedictionary.com/strategical
V900 - Monday, August 27, 2018 - link
*CRASMASH!*That’s the sound of Moore’s law colliding with physics.
A few years ago, an ex-Intel buffin held a talk on chipmaking at the end of Moore’s law. He predicted it would come at 2016-2020 and around 10nm.
That’s really it then. We’ll get another node at 7nm (eventually) but after that? Slow, incremental improvement.
Few people understand how big of a deal this is, but think about this. All of us grew up in a world where the power and speed of computers and electronics would double roughly every two years.
This exponential growth was a virtual certainty and it fed the biggest prosperity engine in human history. There isn’t many fields and businesses that didn’t in some way benefit from it.
And that’s almost over. There’s a few years left where it almost seems like nothing has changed, but it has.
Some of us have children. Those children won’t live in a world with electronics doubling in speed and capability every few years.
The next generation of video games for them will look pretty much like the last one, unless you’ll know where to look.
For them, it’ll be nothing but slow, incremental improvement year after year: A 2% improvement here. A 1% improvement there. The way it was before the transistor.
The scariest thing is, what will happen to the economy. Trillions of dollars and billions of man hours have been spent in the shadow of Moore’s law the past decades. What will happen, once there isn’t a reason to get a new TV every 4 years? If computers only get a few percent faster every year, will computers become a thing you buy once a decade?
nevcairiel - Monday, August 27, 2018 - link
I don't think the future is quite as grim quite yet. After 7nm there is still EUV for a few more nodes (probably 5 and 3nm, and maybe even 1nm). Thats probably over a decade right there.Maybe in that time, someone will finally figure out an alternative. Carbon-based solutions have been mysteriously hyped for a long time. Graphene transistors? Carbon nanotubes?
Manch - Tuesday, August 28, 2018 - link
"Some of us have children. Those children won’t live in a world with electronics doubling in speed and capability every few years."Oh....the.....horror.....