eMRAM: Ready to Roll!

By: Dave Eggleston

There’s been a lot of news recently about embedded MRAM (eMRAM), and for good reasons.  The technology is rapidly accelerating from research and development to commercialization at multiple foundries, and is now being adopted by chip designers. Most notably, GLOBALFOUNDRIES just announced the availability of its 22FDX® 22nm FD-SOI eMRAM for system-on-chip (SoC) designers, with released PDKs, off-the-shelf macros, and MPWs for customer prototyping. With risk production expected from GF and other foundries by the end of 2018, MRAM is shaping up to be a big technology and market disruptor right now, promising to replace embedded Flash, and augment SRAM in MCUs and SoCs for automotive, IoT, consumer and industrial systems. Over the horizon, FinFET processes with eMRAM will also appear, bringing new capabilities to future storage, networking and data center systems.

Supercharged Performance

MRAM technology has been under development for decades – in parallel with several other non-volatile memories including RRAM, Phase Change, Carbon Nanotubes, Ferroelectric – and recently, eMRAM has clearly taken the lead position among all emerging embedded memory technologies. Why? eMRAM offers SoC designers very significant performance advantages:

  • Very fast write speeds (<200ns)
  • Extremely high endurance (~10E8 cycles)
  • Operation from logic Vcc (no high voltage pumps needed)
  • Low energy writes (10x lower than eFlash)
  • Zero bitcell static leakage (0 pA vs. >50pA for a SRAM bitcell)

Coupled with the performance advantages, eMRAM enjoys a significantly higher level of technology maturity versus other emerging NVM options, featuring:

  • Well understood magnetism physics
  • Simple, controllable switching mechanism (no forming, or stepped writes needed)
  • Low incidence of single bit failures
  • Demonstration of multi-Mb arrays at sub-28nm
  • Achieving high yield, with excellent reliability
  • Full integration into advanced foundry production processes

eMRAM simultaneously delivers bit density, speed, endurance, coupled with low power consumption and non-volatility. The combined advantages of superior performance and technology maturity for eMRAM are key factors for foundry customers deciding to use eMRAM for their sub 28nm products.

Hit the Road Running

eMRAM simultaneously delivers bit density, speed, endurance, coupled with low power consumption and non-volatility. The combined advantages of superior performance and technology maturity for eMRAM are key factors for foundry customers deciding to use eMRAM for their sub 28nm products.

Historically, eMRAM has not been perceived as ready for commercialization because of several manufacturing and reliability barriers: material complexity, poor data retention at hot temperatures, susceptibility to external magnetic fields, and finally, difficult and expensive manufacturing.

Tough challenges to overcome, but to move the needle from an unreliable to reliable technology the industry has directly tackled the issues of materials and manufacturing complexity. As a part of this effort, major fab equipment makers, along with foundries, pioneered eMRAM specific PVD and Etch equipment that achieves 20 wafers per hour (wph) throughput, which enables a competitive manufacturing cost.

Moreover, GF has specifically improved eMRAM reliability, by modifying the magnetic materials to deliver outstanding data retention and magnetic immunity, including:

  • Less than 10ppm bit error rate through 260°C solder reflow
  • 15 year data retention at 125°C
  • More than 1000 Oe magnetic immunity

In other words, many of the past barriers for eMRAM commercialization have now been overcome – solved by the collective efforts of the foundries and major fab equipment makers in making eMRAM reliable and manufacturable.

Crank up the “Killer Combo”

In light of these new advancements in reliability and manufacturability, high-volume market opportunities have now opened up for eMRAM. The market opportunity further expands with the widespread commercialization of fully-depleted silicon-on-insulator (FD-SOI) as a substrate.

eMRAM on FD-SOI brings together best-in-class capabilities, creating an irresistible “Killer Combo” vs. other bulk silicon offerings. Unlike eFlash, which is built down into the silicon, eMRAM’s magnetic element is built up in the metal layers, so it is more easily implemented into a logic process such as FD-SOI with no impact on FEOL transistors. Additionally, eMRAM’s higher endurance, faster write speed increases SoC performance, and the low write energy reduces power consumption by more than 80 percent (vs. 28nm bulk silicon with eFlash).

In particular, GF’s industry leading 22FDX eMRAM platform provides excellent scaling, outstanding RF IP, ultra-low leakage, power island control – and (finally!), eMRAM macros with either eFlash or SRAM interfaces. For the first time, the versatility of GF’s 22FDX eMRAM enables ultra-efficient memory subsystems that power cycle with no time or energy penalty, making it suitable for a broad spectrum of applications.

eMRAM is finally here; ready for SoC designers to take advantage of the superior performance and technology maturity, with GF’s 22FDX eMRAM delivering excellent reliability and manufacturability.

Design your Killer Product today, using GF’s 22FDX “Killer Combo”!

To test drive GF’s 22FDX and embedded memory offerings:

About Author

Dave Eggleston

Dave Eggleston

Dave Eggleston is the Vice President of Embedded Memory at GlobalFoundries, which he joined in 2015. Dave has responsibility for the embedded volatile and non-volatile memory businesses at GlobalFoundries, as well as the related strategic direction and initiatives. Dave is the former CEO and President of Unity Semiconductor, a RRAM industry pioneer acquired by Rambus. He has held technical executive management roles at Rambus, Micron (where he built and spearheaded the NAND systems engineering organization), SanDisk, and AMD. He holds 28 patents in NAND flash and next-generation ReRAM memory, storage system usage, and high volume manufacturing. He currently serves on the Board of Directors of two NVM start-up companies. He received his MSEE from Santa Clara University and his BSEE from Duke University.

eMRAM: 蓄势待发!

作者: Dave Eggleston

最近关于eMRAM 的技术捷报频传。该技术的研发阶段已顺利完成,开始加速演进,在多个晶圆厂进入商用,并得到了芯片设计者的仍可。值得一提的是,格芯刚刚发布了 用于片上系统(SoC) 的22FDX® 22纳米 FD-SOI eMRAM技术,包括了配套的PDK,存储模块,以及便于用户进行原型验证的MPW(多项目晶圆)的日程表,格芯及其他晶圆厂预期将在2018年末进行试生产。eMRAM正迅速成型,演进为一项伟大的技术,并为市场带来新的机会, 预计将会替代目前用于MCU及SoC的eFlash和SRAM, 这些MCU和SOC芯片广泛应用于汽车、物联网、消费者及工业系统。未来,eMRAM也会 集成在 FinFET工艺平台上,为新一代的储存、网络和数据中心系统带来新的技术。

超强的性能

MRAM技术的开发已经持续数十年,其他同期进行的非易失性内存包括RRAM、Phase Change, Carbon Nanotubes, Ferroelectric, 到目前为止,eMRAM已确立了领先的地位。eMRAM为SoC设计者提供了显著的性能优势:

  • 超快写入速度 (<200ns)
  • 极高的擦写次数 (~10E8 次)
  • 在逻辑Vcc供电下运行 (无需Charge PUMP)
  • 功耗低 (比eFlash低10倍)
  • 无bitcell静态漏电 (0 pA vs 50pA for a SRAM bitcell)

 

相较于其他新兴NVM,除了卓越的性能, eMRAM也具备更高的技术成熟度:

  • 成熟的磁学物理理论
  • 简单可控的写入机制 (无需先擦除再写入,也无需分步写入)
  • 单比特出错率低
  • 已经有28纳米以下的成品,展示多个Megabit阵列
  • 高良率,高可靠性
  • 与先进工艺的无缝融合

eMRAM同时具有高数据密度、高速度,耐用性,低功耗和非易失性的特点。综合的优势、卓越的性能和技术的成熟,成为设计公司在 28nm及以下工艺平台选择eRMAM的重要因素。

全速启程

eMRAM 在过去被认为无法商用,因为它在制造成本和可靠性方面挑战巨大:材料复杂、高温条件下的数据维持能力低、抗磁力干扰能力差,价格高昂而制造过程复杂。

通过业界共同和持续的努力,代工厂已经解决了材料及制造工艺过程复杂的问题,多家主流晶圆设备生产商与晶圆厂采用了更适合eMRAM 技术的淀积和蚀刻装置,达到了每小时20片晶圆的产出,使得生产成本具备了竞争力。

此外,格芯特别 改进了eMRAM的可靠性, 通过调整磁性材料,达到了出色的数据维持能力及抗磁场干扰能力,包括:

  • 在260°C回流焊接中小于10ppm的误码率
  • 125°C温度下15年的数据维持时长
  • 大于1000奥斯特(Oe)抗磁干扰能力

简而言之,许多过往在eMRAM技术上的障碍已被克服–这是众多晶圆厂商和主流晶元设备制造商共同努力的结果,他们使eMRAM技术更为可靠并得以投入量产。

打造杀手锏

得益于成本的降低与可靠性的提高,批量生产的大门已向eMRAM技术敞开。而随着全耗尽式绝缘体上硅(FD-SOI)作为基底技术的广泛商业化,eMRAM的市场机会将进一步涌现。

eMRAM 与 FD-SOI的搭配带来了同类产品最佳的性能,与其他传统硅产品相比,是令人无法抗拒的“杀手锏”。不同于eFlash是一种前端技术, eMRAM的磁性存储元件搭建于后端金属层上,这便利于将其集成至如FD-SOI的逻辑制程,不会对前端晶体管造成影响。此外, eMRAM更高的耐用性、更快的写入速度提升了SoC的性能,相较于使用eFlash的28纳米传统技术,写入功耗降低了超过80%。

具体来说,格芯在业内领先的 22FDX eMRAM 平台提供了出色的工艺尺寸的微缩、高性能的射频IP、超低的漏电和 灵活的电源控制能力,更加重要的是,配备了eFlash 或 SRAM接口的eMRAM模块,使得超高效内存子系统成为可能,这些子系统在开启/切断电源的时候,没有时间上的延迟和功耗的损失,使其成为大量应用的最佳选择。

eMRAM 技术终于到来,已为SoC设计做好准备,使设计者得以利用其高性能的优势和成熟的技术, 获得eMRAM带来的高可靠性和低成本。

使用格芯22FDX “杀手锏,即刻打造您的王牌产品!

使用格芯的22FDX和嵌入式内存产品:

 

GTC 2017 and the Future of Technology: Part 2

By: Dave Lammers

In all my years as a tech journalist, I’ve rarely been witness to a story as interesting as what is happening in the automotive sector. What could be more fascinating than the race to move beyond today’s gas-powered cars with all-too-human drivers at the wheel?

Will young people, the so-called Generation X drivers, embrace autonomous driving and EVs? Will the concerns about safety, pollution and natural resources contribute to the push for EVs and the ADAS technologies?

And yes, national governments are all competing to make sure that their domestic automotive industries take a pole position.

GF has a lot going for it in automotive. When I moved to Austin in 1998 and started covering Motorola’s automotive semiconductors, I found managers very positive about the support from Chartered Semiconductor Manufacturing Ltd., now a part of GF. And having a fab in Dresden, located nearby Europe’s leading automotive OEMs, is another plus.

To capitalize on its advantages, GF is packaging them together in a new automotive-focused platform, AutoPro™. The goal is to make sure customers have all of the foundry’s automotive technology solutions and manufacturing services available under one roof, enabling customers to quickly obtain quality certifications and minimize their time-to-market.

There is little doubt that the efforts to develop ADAS and EV technologies are fast moving. Mark Granger, vice president of Automotive Product Line Management at GF, predicted at GTC 2017 that by 2020 there will be “a couple hundred thousand fully autonomous cars” on the road.

“Over the next 10, 20, 30 years, autonomous cars have the chance to really save lives, and provide mobility for older drivers. Statistically the loss of life around the world (from auto accidents) is equivalent to losing a 747 (load of passengers) a week. That is a staggering statistic. If we can resolve the ADAS safety challenges, we will be doing something for the world.”

To get there, Granger presented a long list of technology challenges, ranging from lidar to image processing to automotive-use 5G. And on top of ADAS, he noted the advances in electric vehicles that are likely to come in parallel.

Automotive, Granger said, represents a “slew of opportunities, including sensors around the car, so the car can see and understand and react to the world around it. A car will become a data center on wheels. And much of that processing capability will be located in the car, because no one wants to be in a car that depends on a (wireless) link to drive, even in a parking garage.”

Sanjay Jha, the CEO of GF, spoke about the demands that ADAS systems place on the sensors, radar and ICs to engage in “real-time management.”

Noting that a car traveling at 70 mph, or 100 feet per second, must be able to see obstacles, make a decision, and engage the brakes, all within a distance of 100 feet, Jha said the ADAS systems must be able to do “an enormous amount of computation within a millisecond.”

An ADAS-enabled car will include sonar and as many as 16 cameras per car. “The car must be able to take braking action while taking in data from the cameras. It will drive consumption of square kilometers of silicon in the industry, and bring in changes from Von Neumann architectures to distributed computing. This will be a huge and powerful driver for the semiconductor industry.”

22FDX® technology is aimed squarely at these ADAS-enabled cars, with Fab 1in Dresden, Germany and, later, Fab 11 in Chengdu, China positioned to supply automotive-use ICs.

Granger noted that for automotive lidar, GF is working with customers on both silicon germanium- and CMOS-based lidar solutions. “We are working in Fab 1 on 22FDX and SiGe for long-range radar, 40nm CMOS or 22 FDX for short-range, and 28nm or 22nm for camera sensors. The controllers for power windows and others are on our mature nodes, and of course, with the advanced nodes we support the very hefty processing elements that will go into cars for centralized control.”

Overall, the total available market (TAM) for automotive ICs will grow from $35 billion now to $54 billion by 2023. The ADAS content will grow by a 20 percent CAGR, driven by sensors and processing power, while analog and power still retain a majority of the market.

“GF has a wide range of capabilities and can serve every one of these markets,” Granger said.

It will be interesting to watch the role played by China, a nation with a major air pollution problem. China’s government is steering urban consumer toward EVs by reducing taxes and easing the difficult bureaucratic path to getting a car license.

The race is on to see which companies, and which countries, will take the lead in tomorrow’s connected car market. With GF’s experience at its major fab sites, its diversity of technologies, and the new AutoPro platform, it appears to have the right tools to help customers win this most exciting competition.

 

About Author

Dave Lammers

Dave Lammers

Dave Lammers is a contributing writer for Solid State Technology and a contributing blogger for GF’s Foundry Files. Dave started writing about the semiconductor industry while working at the Associated Press Tokyo bureau in the early 1980s, a time of rapid growth for the industry. He joined E.E. Times in 1985, covering Japan, Korea, and Taiwan for the next 14 years while based in Tokyo. In 1998 Dave, his wife Mieko, and their four children moved to Austin to set up a Texas bureau for E.E. Times. A graduate of the University of Notre Dame, Dave received a master’s in journalism at the University of Missouri School of Journalism.

 

GTC 2017 and the Future of Technology: Part 1

By: Dave Lammers

When I was flying west to attend the 2017 GLOBALFOUNDRIES Technology Conference, I couldn’t help but think of a trip 10 years earlier, to the 2007 SEMICON West. In the press room there, tech journalist Katherine Derbyshire showed off her brand-new iPhone, and several of us huddled around watching her double-tap, type on the screen, and perform feats of wizardry that were beyond those of us that had mere Blackberries.

For several years now, we’ve all been thinking about the future of technology. Will people really turn over their wheels to ADAS cars? Will neural networks learn complex tasks? Will augmented reality become so adept that doctors can offer better diagnoses? And will these capabilities run over 5G wireless networks that run circles around today’s links?

There were some answers at the 2017 GTC event in Santa Clara.

Just as the 4G wireless rollout delivered users the fast access to the Web that propelled so many new mobile applications – think Uber and others – the still-developing 5G networks will be needed to provide the performance required to spur autonomous driving, cloud-based applications, smart cities, and a host of others.

GF’s CEO, Sanjay Jha said, “5G is set to transform all industries, and our customers are already gearing up for the future.”

The moniker “5G” will evolve over time, starting out with gigabit-capable versions of the 4G LTE standard and then offering fixed-point and mobile capabilities that go beyond the long-term extension (LTE) roadmap. Jha mentioned the ability to go from today’s megabits-per-second of sustained wireless bandwidth to gigabits-per-second rates, at sub-5 nanosecond latencies.

To get there, GF will offer enhanced versions of its RF SOI, SiGe, and FDX technologies. And behind these networks will be new power solutions based on the BCD and BCD Lite offerings.

Bami Bastani, senior vice president of the RF business unit, said the 5G networks will need to support two segments, one in the sub-6 GHz realm and a millimeter wave segment that operates at 28 GHz and higher. The 5G networks will include picocells in urban areas for point-to-point transfers, and, eventually, mobile networks with enough robustness to support tomorrow’s automobiles. As 5G networks grapple with millimeter waves, Bastani said “the level of integration increases, and the demands increase on linearity and robustness.”

Cristiano Amon, executive vice president of Qualcomm, noted how whole new industries developed, based on the widespread Internet connectivity that the 4G networks supported over the last decade. “The digital economy came of age with the smartphone,” Amon said, and with future economics gains to come from 5G networks, companies such as Qualcomm are “investing heavily” in solving the design challenges that 5G represents.

Amon predicted that 5G capabilities would “enter into the PC space, with no separation between the PC and the mobile space.” And he sees China playing a very important part of Qualcomm’s efforts: “There is so much excitement in China in mobile handsets and in advancing the industry to 5G. Partnering with China has been a very important part of Qualcomm’s success,” he said.

Ten years from now, as technologists fly to the 2027 GTC event, is there anyone who seriously doubts they will be riding to the venue in ADAS-enabled cars, surfing the Web on 5G-enabled phones, and learning about the newest technologies on augmented-reality systems?

All of these things will take time. And patience, by the way, was another noteworthy theme of GTC 2017. Foundries take time to develop, both in terms of technology and their ability to offer EDA tools and IP, to meet customer deadlines and ensure quality.

GTC 2017 was in effect a statement that GF has matured into a reliable manufacturing partner. In 2017, as AMD’s chief technology officer and senior vice president Mark Papermaster said at the GTC event, AMD has seen great success with a newly designed lineup of processors and graphics solutions, created in a partnership with the 14nm FinFET technology ramped successfully at GF’s Malta, N.Y. fab.

And executives from Skyworks and Qorvo also took the stage at GTC 2017 to say that they have succeeded by partnering with GF in the wireless space as well.

Those success stories are good indicators that future successes are in store, for GF and for all of us.

About Author

Dave Lammers

Dave Lammers

Dave Lammers is a contributing writer for Solid State Technology and a contributing blogger for GF’s Foundry Files. Dave started writing about the semiconductor industry while working at the Associated Press Tokyo bureau in the early 1980s, a time of rapid growth for the industry. He joined E.E. Times in 1985, covering Japan, Korea, and Taiwan for the next 14 years while based in Tokyo. In 1998 Dave, his wife Mieko, and their four children moved to Austin to set up a Texas bureau for E.E. Times. A graduate of the University of Notre Dame, Dave received a master’s in journalism at the University of Missouri School of Journalism.

 

New 8SW RF SOI Platform Leads the Industry

By: Shankaran Janardhanan

The world’s first mainstream RF SOI foundry platform manufactured on 300mm wafers offers an unmatched combination of best-in-class performance, cost effectiveness and flexibility

GF recently announced some exciting news for designers of RF front end modules. At our flagship annual technology conference, GTC, we unveiled a 300mm RF SOI platform for 4G LTE and sub-6 GHz mobile/wireless applications, which we are calling 8SW.

It offers impressive technical specifications and gives our customers unbeatable economic and time-to-market advantages.

But actually, those aren’t its only noteworthy features. What’s also noteworthy is the fact that it is a tangible result of something intangible by nature but vitally important nonetheless – the unique relationships, mutual respect and deep trust we and our customers share. In a nutshell, we couldn’t have developed it without the support and close working relationships we have with our customers.

With the acquisition of IBM’s Microelectronics business, GF not only gained deep technical knowledge in RF but it has fostered and built upon a legacy of customer intimacy. The result is a new chip-manufacturing technology with a comprehensive set of advanced features that gives customers exactly what they need the most.

Our new 8SW RF-SOI platform provides an unparalleled combination of best-in-class performance, cost effectiveness and the flexibility needed to build chips for the complex front-end modules (FEMs) required by rapidly evolving mobile/wireless communication applications.

It’s not only the best combination of switching, LNA (low-noise amplifier) and logic capabilities on the market, but as a 300mm RF SOI process it uses larger wafers and more sophisticated tooling, bringing compelling economic, design and time-to-market advantages. It also features all-copper interconnect for more current-carrying capacity and efficiency.

The new 8SW platform features switching speeds of sub 85fs, which is about 25 percent faster than our existing 200mm RF-SOI process. For LNAs, it offers peak fMAX of more than 250GHz. Logic circuitry is extremely dense and can operate at either 1.2V or 1.8V, with a power reduction of more than 70 percent versus the previous platform.


Source: Adapted from The5th Generation Mobile Wireless Networks

In addition, overall die size can be as much as 20 percent smaller. Combined with the fact that 300mm wafers are larger and yield more chips, the result is that the new 8SW process enables much more cost-efficient and faster design/development cycles because there is more wafer area available to use for test sites, design variations and multiple simultaneous projects. Time-to-market is also increased because 300mm production tools reduce variability by more than 30 percent versus the 200mm process.

Working Closely With Customers

In developing the 8SW RF SOI platform, we’ve taken dual product- and customer-centric approaches. We worked closely with customers because we needed to understand their detailed knowledge of application requirements as we developed the 8SW platform.

One example of this approach was our recognition of the need to focus our development efforts on continuously improving LNA performance as signals come out of transceiver and move into the front end modules. This focus was a direct result of our close work with customer design teams to ensure the 8SW platform would meet rapidly developing advanced 4G LTE requirements.

The new 8SW platform is manufactured at GF’s 300mm production line in East Fishkill, NY, providing customers with ample capacity because it leverages a partially-depleted SOI technology base that has been in high-volume production since 2008.

About Author

Shankaran Janardhanan

Shankaran, GF’s Director of Product Line Management for RF, has made many contributions to the technical development and business success of RF products over his entire career. In his current role he has global product responsibility for GLOBALFOUNDRIES’ industry-leading portfolio of RF solutions. He was previously GF’s manager of RF business development and field applications. Before that he was at TowerJazz, where he had various roles in design engineering, technology and product management for RF and MEMS products, and where he managed the design support function. He has an M.B.A. from University of California–Berkeley and an M.S. in electrical engineering from Temple University.

 

网络应用的2.5D到来

作者: Dave Lammers

面对带宽问题,网络公司正在转向转接板、HBM2 DRAM和先进ASIC技术。

当大网络公司开始开发新一级别的兆兆位路由器时,他们都来到了一个“临界点”,“临界点”概念是由The Linley Group的网络分析师Bob Wheeler提出的。

CiscoJuniperNokia, 以及其他大公司在努力从层叠印制电路板DR DRAM中取得足够带宽的同时, 已经发现了针脚数目爆炸式的增长。

网络客户现已可使用由格芯提供的全新14纳米ASIC (FX-14™) 方案,此方案提供载于硅转接板上的高带宽内存(HBM2)链接。Rambus Inc. 公司(位于森尼维尔) 与格芯工程师合作,将 Rambus PHY 整合至 FX-14 ASIC 平台,提供了令人叹为观止的 每秒2 (Tb/s) 的带宽。

“外置内存无法跟上ASIC缓冲的带宽需求,这是已预见的问题,而这就是本问题的解决办法,” Wheeler 说道。 “人们尝试尽可能地使用通用型 DRAM,但是由于针脚数目的爆发式增长,现在我们正面临着一个临界点。”

通讯类ASIC的市场大概为十亿美元,Wheeler 提到, 而路由器是十分昂贵的系统,足以支持转接板 (2.5D) 方案满足高速数据缓冲的成本。

对于层叠PCB上的DDR型DRAM来说,Wheeler 声称 “ASIC的主要问题来自针脚数。设备的针脚数甚至可高达2000。HBM的魅力在于它具备通用的接口,并且包括在封装内一体化提供,无需寻求额外的接口。”

网络以外的市场?

取决于成本是否可以降低, 2.5D (转接板)方案可用于其他应用例如数据处理、高端图像、自动驾驶车辆、人工智能和其他高带宽类方案,格芯封装研发部、业务技术营运部副总裁 Dave McCann如此说道。

向转接板技术转移在排线密度上带来了巨大的进步。对于层叠PCB方案来说,连接线和线之间的空隙为12微米,可是由于垂直过孔50微米是不可取的,大量的空间被浪费在绕过或避免垂直过孔,通常连线密度无法达到理想值。有了硅转接板的帮助,连接线及空隙可达到逻辑芯片背板的级别,约为0.8微米,格芯技术开发高级经理Walter Kocon说道。

要在PHY和HBM2内存间使用逻辑级别的排线,需要依靠包括了光刻在内的晶元级工具。由于转接板比传统芯片更大,多处区域需被拼接在一起。但是 Kocon声称现下的分档器在刻线切换能力上非常出色,在创造更大转接板的道路上也取得了长足进展。

晶元长的工具比传统层叠制程工具要更昂贵,但是回报也同样巨大-芯片上的I/O可高达约1700个。正如McCann提到的,缩小单段排线的距离可将功耗保持在可控制范围,而这是目前仍在使用的层叠序列接口无法做到的。

全方位应用无死角

“由于晶元制造技术(小于1微米)在转接板中的应用,过孔技术得以实现,0.8微米排线和间隙可以在多个层面得到实现,而从根本上来说,并没有过孔无法应用的死角。对于传统PCB来说,排线必须从ASIC引入再回到DIMM卡上,浪费了能源与时间,”McCann说道。而基于转接板的内连接在数量级上更小,设备间的距离只有数百微米,大量的平行排线密度足以支持多兆兆位级别的带宽。

可是在转接板技术上存在制造难题。 “转接板和ASIC本身的尺寸很大。首先,我们必须创造ASIC和转接板之间的接口。拓展属性的匹配是创造合适接口的关键之一。控制扭曲的设计和集成处理尤为重要。将压力均匀散布于转接板和位于其下的叠层也十分重要,否则接口将存在巨大误差。” McCann 说道。

转接板和ASIC之间十分靠近,而焊锡凸块大约为70微米,在这个前提下,控制扭曲是增加2.5D技术产量的关键因素。 “这意味着产品对于扭曲的容忍性将极为有限,” McCann 说道。被推向一起的焊锡或被向反方向拉扯的焊锡将带来链接上的问题。 “我们要求制造加工保证所有分层都为平面,但我们相信在OSAT合作伙伴的帮助下,我们可以满足这个要求。” McCann 说道。

PHY合作

PHY是另一个技术难题,这个难题已被 Rambus和格芯一同克服。 Frank Ferro是Rambus产品市场部高级主管,他解释说,HBM2 PHY是一个混合信号功能,必须针对每个制程节点进行精确设计。

“我们进行了大量的信道建模,并设计了满足各种要求的PHY。而这些都是通过合作开发完成的。我们对于整个制程进行了许多讨论,以确保设计的稳定。项目伊始,让设计成功实现,就是Rambus的(建模和信号完整性)工具和参与到设计这些PHY的所有工程师的目标。”

DDR DRAM支持72数位的带宽,而HBM2支持1024位。1024数位的信号完整性控制极具挑战性,Ferro向格芯工程师们寻求帮助,指望于他们从IBM微电子部门带来的高速信号经验。

当被问及2.5D方案是否将占领整个行业的高速部分,Ferro称这将取决于制造的产量以及HBM2 DRAM的成本减少。 “2.5D 必须经由大批量制造的考验。这是硅技术中极大的一部分,扭曲必须得到控制。”

Tad Wilder是格芯技术员工的高级成员, 他声称2兆兆位每秒的带宽“对于单一核心来说是令人叹为观止的。而总共可放置4块HBM2 PHY的芯片,将为ASIC设计者带来前所未有的8兆兆位每秒的带宽,并具备低功耗低延迟DRAM。”他补充道14纳米 HBM PHY “是我们为ASIC生产过最大的核心,其包含15000外置针脚可接至内存控制器、1700外置针脚可接至转接板各层DRAM的基本晶体。”

每一层DRAM都包含一个基础晶体,与ASIC的HBM2 PHY以及另外高达8个不同叠层的基础晶体进行沟通,链接通过数千个垂直硅过孔(TSV)实现。每层HBM DRAM的总内存可高达32GB。为了减少1000个输入输出开关的噪音信号,ASIC HBM2 PHY可以利用8个128数位信号通道的完全独立性,并通过对每个信号通道的相应时序控制调整来实现。

Linley Group分析师 Wheeler见证了HBM2标准建立所带来的趋势。Hynix是最初的发起者,可是 Wheeler说 Samsung已具备自己的HBM2并愈发强势。由于方案的成本大部分来自于HBM2内存,多个HBM2供应商间将展开激烈竞争,提高产量、降低成本并优化性能。

当被问及是否认为2.5D方案将进一步普及,McCann说 “这是本时代一个非常伟大的技术,并能带来巨大的回报。问题是,我们是否能降低成本并提高产量?”

关于作者

Dave Lammers
Dave Lammers是固态技术特约撰稿人,也是格芯的Foundry Files的特约博客作者。他于20世界80年代早期在美联社东京分社工作期间开始撰写关于半导体行业的文章,彼时该行业正经历快速发展。他于1985年加入E.E. Times,定居东京,在之后的14年内,足迹遍及日本、韩国和台湾。1998年,Dave与他的妻子Mieko以及4个孩子移居奥斯丁,为E.E Times开设德克萨斯办事处。Dave毕业于美国圣母大学,获得密苏里大学新闻学院新闻学硕士学位。

 

2.5D Arrives for Networking Applications

By: Dave Lammers

Faced with bandwidth issues, networking companies are turning to interposers, HBM2 DRAM and leading-edge ASIC technology.

When the big networking companies began developing a new class of terabit routers, they reached what Bob Wheeler, networking analyst at The Linley Group, calls “the breaking point.”

These companies — CiscoJuniperNokia, and others — had been watching the pin counts on their router ASICs “explode” as they worked to get enough bandwidth from commodity DDR DRAMs, mounted on laminate printed circuit boards.

Networking customers are now able to use a new 14nm ASIC (FX-14™) solution from GLOBALFOUNDRIES® which offers connections to High-Bandwidth Memory (HBM2) mounted on a silicon interposer. Rambus Inc. (Sunnyvale) and GF engineers cooperated to bring a Rambus PHY to the FX-14 ASIC platform that provides an impressive 2 terabits per second (Tb/s) of bandwidth.

“This is a solution to a problem we’ve seen coming, which is the inability of external memory to keep up with the bandwidth requirements on the buffers of these ASICs,” Wheeler said. “People tried to use commodity DRAM as long as they could, but because of the pin count explosion, that reached a breaking point.”

The market for communications ASICs is roughly a billion dollars, Wheeler said, noting that routers are expensive systems that can support the cost of an interposer-based (2.5D) solution to get the bandwidth required for high-speed packet buffering.

For the incumbent — DDR-type DRAM running on a laminate PCB — Wheeler said “the big problem from the ASIC perspective was the pin count. You could end up with 2,000-plus-pin devices. The beauty of HBM is that it has a wide interface and stays in the package, so you don’t have to go to a serial interface.”

Markets Beyond Networking? 

Depending how well costs can be improved, the 2.5D (interposer-based) solutions could find other applications in data processing, high-end graphics, self-driving cars, artificial intelligence, and other bandwidth-hungry solutions, said Dave McCann, vice president of packaging R&D and business technical operations at GLOBALFOUNDRIES.

Moving to an interposer brings an enormous improvement in the routing density. For laminate PCB-based solutions, lines and spaces were at 12 microns, but that wiring density often was not achieved because the vertical 50-micron vias between the layers had to be avoided, or routed around, wasting a huge amount of space. With a silicon interposer, the lines and spaces are essentially the same as the back-end of a logic chip, currently about 0.8 microns, said Walter Kocon, a senior manager of technology development at GF.

Using logic-like wiring for routing between the PHY and the HBM2 memory on an interposer involves using fab-level tools, including lithography. Because the interposers are much larger than conventional chips, multiple fields must be stitched together. But Kocon said today’s steppers are very good at switching between reticles, and progress is being made in creating ever-larger interposers.

These fab processing tools are more expensive than conventional laminate-processing tools, but the payback is a massive number of on-chip I/Os (roughly 1,700) between the PHY and the HBM2 memory. And as McCann noted, by keeping the traces very short, power consumption is kept under control compared with the laminate-based serial interfaces used to date.

No Keep Out Area

“With vias enabled by wafer fab technology (<1 micron) in silicon interposers, multiple layers of 0.8-micron lines and spaces can be utilized, because there is essentially no keep out area for the vias. That compares with the conventional PCBs, where routing had to come down from the ASIC and over to the DIMM card, consuming both power and time,” McCann said. With interposer-based interconnect being orders of magnitude smaller, and devices only hundreds of microns apart, the massively parallel routing density supports multi-terabit levels of bandwidth.

But there are manufacturing challenges associated with interposers. “These are big interposers and big ASICs. First, we have to create an interface between the ASIC and the interposer.  Matched expansion properties of the ASIC and silicon interposer are one key to a non-stressed interface.  Design and assembly processes that control warpage are critical. Then spreading the stress between the interposer and the laminate below is critical, because there is a big mismatch at that interface,” McCann said.

Controlling warpage is key to getting good interconnect yields with 2.5D. With very close spacing between the interposer and the ASIC and a bump height of about 70 microns. “This means there is very little tolerance for warpage,” McCann said. Solder that is pushed together, or pulled in the opposite direction, creates connection issues. “We need manufacturing processes to keep all of these surfaces flat, and we believe, along with our OSAT partners, that we can do that,” McCann said.

PHY Cooperation

The PHY was another technical challenge, one that Rambus tackled along with GF. Frank Ferro, senior director of product marketing at Rambus, explained that an HBM2 PHY is a mixed signal function that must be designed very specifically to each process node.

“We do a significant of amount channel modeling and then designed the PHY to meet those channel requirements. And it was a collaboration. We had many discussions over the whole process to ensure a robust design. From Day One, it worked, and that is a strong testament to the Rambus (modeling and signal integrity) tools and the engineers who have a history of designing these PHYs.”

DDR DRAMs support 72 bits of bandwidth, compared with 1,024 for HBM2. With 1,024 bits, controlling the signal integrity is challenging, and Ferro tipped his cap to the GF engineers, many of whom brought experience with high-speed signaling from their days at IBM’s Microelectronics Group.

Asked if he thought 2.5D solutions would spread throughout the high-performance part of the industry, Ferro said it depends on manufacturing yields, and bringing down the cost of the HBM2 DRAM. “2.5D needs to be proven out with high-volume manufacturing. It is a fairly big piece of silicon, and you have to really control warpage.”

Tad Wilder, a principal member of the technical staff at GF, said the 2 terabits-per-second of bandwidth “is quite an impressive amount of bandwidth for a single core. And with the ability to place up to four HBM2 PHYs on a chip, this gives ASIC designers an unprecedented eight terabits-per-second of low power, low latency DRAM access to work with.” He added that the 14nm HBM PHY “Is the largest core we’ve produced for an ASIC, with 15,000 internal pins talking to the Memory Controller and 1,700 external pins talking to the base die of the DRAM stack across the interposer.”

Each DRAM stack contains a base die, which communicates with the ASIC’s HBM2 PHY and up to eight stacked DRAM die above, through thousands of vertical Through Silicon Vias (TSVs).   The total memory per HBM DRAM stack is up to 32GB. To mitigate the noise of more than 1,000 I/O possibly switching, the ASIC HBM2 PHY can take advantage of the complete independence of the eight 128 bit channels by skewing the timing of each channel with respect to another.

Linley Group analyst Wheeler sees momentum building for the HBM2 standard. While Hynix was the initial backer, Wheeler said Samsung has come on strong with its own HBM2 parts. Because so much of the total solution cost is wrapped up in the cost of the HBM2 memories, competition among multiple HBM2 vendors will help drive volumes, reduce costs and improve performance.

Asked if he thought 2.5D solutions would proliferate, McCann said “it is a really great technology that has come of age, with significant revenues. The question is: can we drive down the cost to get it to the next level of volume?”

About Author

Dave Lammers

Dave Lammers

Dave Lammers is a contributing writer for Solid State Technology and a contributing blogger for GF’s Foundry Files. Dave started writing about the semiconductor industry while working at the Associated Press Tokyo bureau in the early 1980s, a time of rapid growth for the industry. He joined E.E. Times in 1985, covering Japan, Korea, and Taiwan for the next 14 years while based in Tokyo. In 1998 Dave, his wife Mieko, and their four children moved to Austin to set up a Texas bureau for E.E. Times. A graduate of the University of Notre Dame, Dave received a master’s in journalism at the University of Missouri School of Journalism.

 

Semiconductors On the Cusp of a Golden Era

By: Gary Dagastine

Since the invention of the transistor, breathtaking advances in semiconductor technology have driven the evolution of computing and communications along a path from centralized mainframes and minicomputers, to networked PCs, to sophisticated mobile devices that can connect to networks at any time from anywhere.

Yet as impressive as these achievements have been, they represent only the beginning of the contributions semiconductors will make to society. Their real impact is yet to come because while there are already billions of internet-connected devices in the world, a much greater number will be connected globally in the next few years for applications such as autonomous vehicles, the Internet of Things (IoT) and many others.

They will require an extensive infrastructure to connect, transmit, process, act upon and store all of the resulting data. Building an infrastructure that can enable such “connected intelligence” is a huge ongoing task that will require so many semiconductors relying on so many technologies, that it’s fair to say a golden era is dawning for the industry.

That was the perspective given recently by GLOBALFOUNDRIES CEO Sanjay Jha and Sr. Vice President and General Manager of Fab 8 Tom Caulfield, in keynote talks at the Mobile World Congress Shanghai and SEMICON West trade shows, respectively.

Their talks were focused on describing this new era of connected intelligence, how it is changing the requirements and conditions for success in the foundry segment, and how GF is making it possible.

Jha spoke about how the explosion of data is leading to a  connected intelligence inter-relationship among data centers, networks and client devices (i.e., smartphones, IoT devices, etc.). He described how GF is in a leadership position to enable it, both with regard to GF’s suite of leading-edge technologies and in terms of the company’s business strategies, such as the building of a new 300mm fab in Chengdu, China for 22FDX®-based products.

“The last 10 years in this industry have probably been the most transformative in our lives,” he said. “One example is that our phones have become an extension of our minds. Another, from a social perspective, is that Facebook now has almost 2 billion monthly users. Considering that China has about 1.4 billion people, the Facebook community is now larger than any other.”

At MWC Shanghai, CEO Sanjay Jha was a keynote speaker and part of a panel speaking on the topic of “Industry & The Human Element”

“I believe the next 10 years is going to be a golden era for the foundry business,” he said. “Industry estimates suggest that by 2025 we will be using 163 zettabytes of data (one zettabyte = 250 billion DVDs). We are collecting, transporting and analyzing all of this information – both at the edge with client devices for real-time decision-making and in the data center for longer-term insight gathering. Semiconductors are the enabling technology.”

Jha believes this transformation is changing the conditions for success in the semiconductor industry – both in terms of technologies and customer engagement models.

Regarding technologies, he described how GF’s dual roadmap of FDX™ technology for battery-powered devices and FinFET technology for high-performance processing in data centers and high-end computing devices is unique, and allows the company to match the right technology with the right application.

When coupled with the company’s legacy of leadership in RF, its new silicon photonics technologies for connectivity, and differentiated ASIC and analog/power technologies, GF is in a unique position to drive progress across the full breadth of new applications in the years ahead.

Regarding engagement models, Jha used China as an example, saying that, “The country is moving from a ‘Made in China’ stage of industry to an ‘Innovated in China’ position, and our Chengdu fab is a strategic, long-term joint venture partnership with the Chengdu government that is conceived in that light. It will be central to our IoT and 5G technologies, and when complete it will be the largest fab in China, with a building half a kilometer long.” Click here to view Sanjay Jha’s presentation.

At SEMICON West, Caulfield said that ever since Gordon Moore’s famous observations known as Moore’s Law were made some 50 years ago, the industry has been putting the pieces into place for what comes next, in effect. “We’ve made products that are smart, and that’s great, but now we’re going to take ‘smart’ and do something special with it. We are moving beyond an internet of smart things, to a framework of ‘connected intelligence’ whose operation and capabilities in many ways mimic the way the mind works.”

Tom Caulfield, SVP & GM of Fab 8, was a keynote speaker and a part of the opening ceremony for SEMICON West 2017

Caulfield noted that the engine powering this move is semiconductor innovation but that in order to keep achieving the technological progress predicted by Moore’s Law, the industry must operate differently because things have become so complex and inter-twined. Scaling is still critical, but scaling alone is no longer an effective strategy.

“After 50 years the game is still ahead of us. We must redefine innovation, collaborate differently and shift engagement behaviors in order to drive needed innovation in data analysis, bandwidth, storage density and power management,” he said. He pointed to GF’s dual-technology roadmap as an example of how innovation is being redefined, with FinFETs representing one path forward for high-performance computing and FDX representing another path forward for wireless, battery-powered devices.

With regard to collaborating differently, Caulfield noted that as the world has developed and the industry has grown and become more complex, old ways of doing business are no longer adequate. He said that a strategy of collaboration today needs to be built on three elements: strategic partnerships with key suppliers; “coopetition” with industry rivals, meaning to cooperate with them in some areas and compete with them in others; and public-private partnerships.

He used the Albany Nanotech research facility as an example of the benefits of coopetition, saying, ”For the industry, it offsets our collective expense to develop technology at the leading edge and lets us build scale in key technologies on a virtual basis.”

With regard to engagement behaviors, he said, “The industry is now so complex that we’ve reached the point where when you look at a project team it’s difficult to know who is the vendor and who is the customer.  Sure, everyone has a boss, but they are really dedicated to the project.”

That’s just one example of how engagement behavior needs to evolve, Caulfield said. “Sharing ideas across global teams, working in an interdisciplinary fashion and encouraging a diversity of ideas are absolutely vital to technical innovation in today’s world,” he said. Click here to view Tom Caulfield’s presentation.

About Author

Gary Dagastine

Gary Dagastine

Gary Dagastine is a writer who has covered the semiconductor industry for EE Times, Electronics Weekly and many specialized media outlets. He is a contributing editor at Nanochip Fab Solutions magazine and also is the Director of Media Relations for the IEEE International Electron Devices Meeting (IEDM), the world’s most influential technology conference for semiconductors. He started in the industry at General Electric Co. where he provided communications support to GE’s power, analog and custom IC businesses. Gary is a graduate of Union College in Schenectady, New York,

 

22FDX 技术获得主流接受和热烈欢迎

作者: Gary Dagastine

世界首创2Xnm用于GP-MCU的嵌入式MRAM, 以及5G应用毫米波能力的简介,引起了强烈关注

22FDX® 技术在近来的两大主流国际论坛的亮相引起了波澜,昭示着在如今快速增长的半导体市场,消费者们又出现了新的选择和平台。

在位于日本京都举办的VLSI技术座谈会上, 约500人出席了格芯员工Danny Shum的演讲,他描述了22FDX制造是如何在嵌入式STT-MRAM非易失性内存 (eMRAM)上取得突破进展的。实际上出席的听众在他的演讲结束后对他不断提出了深刻的问题,在耗尽了5分钟问答环节的所有时间后,听众们仍持续发问,占用了下一环节前20分钟的所有休息时间。这些问题中有的包含了关于具体技术的细节,如材料堆叠、制程技术、测试结果及测试工具;问题同样包含了更广大的领域,例如产品规划路线、商业策略、合作商机和PDK的可用性。

观众所体现出的强烈兴趣来自于eMRAM技术极有可能在代码存储以及工作内存上替代eFLASH 非易失性内存,满足需求量极大的一般用途微控制器和物联网设备。格芯以及合作伙伴 Everspin技术, 展现了在高可靠性要求的严苛环境,例如汽车SoC等应用中,eMRAM的能力。

完整的VLSI文章, CMOS嵌入式 STT-MRAM阵列用于 2x 纳米节点GPMCU应用 , 现已可在格芯官网下载。

同时, 在夏威夷檀香山举办的 IEEE国际微波论坛中, 格芯高级员工以及射频首席技术工程师 David Harame概括了部分及全面耗尽式绝缘体上硅(SOI)在射频毫米波应用以及即将到来的5G设备上可带来的收益,SOI是22FDX的基础。 他的演讲是22FDX专题讨论会的其中一个环节,本讨论会由他及同事Ned Cahoon和Baljit Chandhoke、 Anirban Bandyopadhyay组织,重点在于讨论硅技术,特别是22FDX技术现在对于毫米波应用开发的成熟程度,与更局限更高成本的旧技术比较所拥有的优势。

总体上,演讲阐述了22FDX的技术多样性,满足持续增长的汽车、移动、射频链接、物联网、网络和其他应用市场。

嵌入式STT-MRAM

现在越来越多的应用需要包含了非易失性内存(eNVM)的芯片,可是当设备尺寸缩小,低功耗操作愈发重要,传统eFlash NVM所面对的挑战越来越多。这都是因为eFlahs的高电压要求以及在调整渠氧化层这一个关键参数时必须做出性能和可靠性的折中。

市面上也存在eNVM的替代技术,可是由于eMRAM长久以来被认为拥有潜力提供升级性、写入速度、数据维持、长期可靠性和低功耗操作的最佳平衡,至此并没有过STT-MRAM嵌入式内存正式发布的消息。

直到,Shum在VLSI大会上首次发布了STT-MRAM的消息。他描述了格芯与Everspin技术是如何在2x-nm设计法则上联手打造并展示了世界第一款40Mb CMOS 阵列配备集成eMRAM的。

一大关键要素是STT-MRAM可以承受高达260ºC的高温长达5分钟,意味着普通的封装和集成回流步骤并不会影响储存的内容,而且代码储存可在晶元探针测试途中写入。此外,格芯的22FDX eMRAM根据设计可在150°C环境下维持数据长达10年, 让此项技术可被用于汽车SoC。

另外的技术特点包括,内存在线后端进行生产,敏感的逻辑设备和电路因此可以避免在高温的线前端处理流程中遭到损害。这个特点同样让复用型IP得以实现,因为它们使用的是同样的PDK。内存阵列同样脱离了芯片核心的电压能源供应(Vdd 和I/O), 无需电流泵对电压进行调整。

格芯将在明年提供eMRAM技术,并将其作为总体22FDX技术组合中的一部分,而客户产品原型的多晶元项目将在今年年底开始。

22FDX 硅应用于毫米波

在微波论坛活动中, Harame描述了大批量毫米波频率硅基芯片的市场是如何因为5G无线规格而蓬勃发展的。(详情请浏览, 行政视角:一切都将无线,射频芯片将其实现)

Harame阐述了拥有低晶体管泄漏电压的部分或全耗尽式SOI技术是如何成为此类应用的最高成本效率的。

他已经提到,由于移动蜂窝网络和WiFi交换器都广泛使用了SOI技术,此技术的经验基础非常深厚。其中一个例子是45纳米PDSOI,此技术已被投入到多个毫米波相位阵列系统应用中。 45纳米PDSOI拥有堆叠晶体管的能力,增加了供能调整能力,哪怕是对于功率放大器和低电压CMOS设备也同样适用。

他的演讲重点在于FDX是如何通过它的高k电介质系数栅极金属堆叠(high-k/MG)来进一步增进它的性能的,high-k/MG, 22纳米栅极长度和薄硅通道,这些技术特点共同打造了适用于即将来到的5G毫米波应用的最佳技术。

关于作者

Gary Dagastine
Gary Dagastine是一位职业撰稿人,主要为EE Times、Electronics Weekly和许多专业媒体撰写关于半导体行业的文章。他是NanocEEhip Fab Solutions杂志的特约编辑,也是IEEE国际电子器件大会(IEDM)(全球最具影响力的半导体技术大会)的媒体关系主管。加入General Electric Co.之后,他开始涉足半导体行业,在该公司工作期间,他负责为GE功率、模拟和定制IC业务提供沟通支持。Gary毕业于纽约斯克内克塔迪联合大学。

 

22FDX® Revving up for Automotive Applications at CDNLive EMEA

By: Gerd Teepe

Recently, Cadence hosted its two-day European CDNLive event at a multi-purpose arena in Munich. The arena at the INFINITY Hotel & Conference Resort is also often a draw for ice-hockey tournaments, rock concerts and other high-profile events and visitors. In fact, the Bayern-Munich soccer team has gathered here before important games the last couple of years, bringing further glamour to the area.

While the Bayern Munich players did not occupy the arena this year, there was another star attraction at the show—a technical innovation heralding a new era in image processing. Dream Chip Technologies GmbH of Hannover, Germany demonstrated a system with an image processing chip designed and manufactured with GLOBALFOUNDRIES’ 22nm FD-SOI (22FDX®) technology.

Dream Chip’s ADAS SoC system platform is based on a quad ARM® A53 processor complemented with a dual ARM-R5 lock-step processor, making the chip suitable for enhanced ASIL-type security applications. The image workhorse of the chip is the Vision-P6 processor from Cadence.


Source Dream Chip: Full system architecture of the image processing platform, soon to be implemented by Dream Chip.

The Vision P6 architecture from Cadence is based on the Tensilica architecture and is targeted for Convolutional Neural Network computations (CNNs). Image objects are detected by correlation of video images with a database of known images. For applications in the car, like sign- and pedestrian-recognition, this application needs to run at real-time with 30 frames per second. In essence, it’s a massive computational comparison of pictures occurring in real-time.

The prototype shown at CDNLive is the first-ever live system with an SoC implemented with GF’s 22FDX technology.  The chip is 64mm2 and is mounted on a package substrate together with two LPDDR4 memories.


Source Dream Chip: System module with chip and two LPDDR4-memories

The Dream Chip ADAS chip is a complex and multifunctional SoC. At CDNlive, Dream Chip demonstrated video capabilities through a system board mounted on top of a model car, with the signal of a hood-mounted GoPro camera fed into the system board.

Jens Benndorf, COO of Dream Chip, explained the further signaling path: “First fed into the chip, the video signal is passed to one of the four IVPs running a filter algorithm, then passed to the video-output and on to the display. It demonstrated that the IVP6 is working.”

 
Source GF: Dream Chip live Demo setup at CDNLive EMEA

In addition to the demo, Benndorf and his team gave a number of presentations on the system, the chip architecture and the CNN-based image processing for which the chip is targeted in the near future.

Dream Chip, GF, and partners are working fast and furious (pun intended!) to accelerate the SoC prototype for production readiness. First silicon was demonstrated in February 2017 at Mobile World Congress in Barcelona, and a video on the platform was showcased at CDNLive in May. What will be next? Ride with us, and find out!  22FDX is enabling innovation in ADAS applications and eventually will for autonomous driving too. By then, Bayern Munich players will certainly notice.

About Author

Gerd Teepe

In his role as Director Marketing for Europe, Gerd is responsible for leading the CMOS Platforms marketing initiatives in this region, with focus on accelerating design wins in the IoT/Industrial and Automotive segments as well as emerging markets. Prior to this, Gerd was leading the Design Engineering Organization of GLOBALFOUNDRIES. Gerd Teepe has been with GLOBALFOUNDRIES since its creation in 2009 and is based at the FAB1-site in Dresden.

Prior to GLOBALFOUNDRIES, Gerd was with AMD, Motorola-Semiconductors, and NEC, Japan in R&D, Design, Product Management and Marketing roles.

Gerd holds a Master’s Degree and a phd from Aachen University, Germany.