1. Compass control system chip to achieve 100% localization;
According to the Hong Kong Wen Wei Po reported that in the Beidou 3 mission, through the efforts of China's space people, so that "there is no one imported products." China Aerospace Science and Technology Group 5 Hospital Compass Gao Yi-Jun, deputy chief designer said, Beidou III control system localization of single 100%, localization of components to improve the level of use, the use of increased.The industry believes that the Beidou 3 control system in the localization of core products at the same time, pulling the development of related domestic technology.
Beidou system needs to launch more than 30 satellites in order to complete the network, which makes space experts from the beginning of the mission to realize that the localization of the system for the construction and stable operation of life and death, can not be stuck by others "life gate." In the Beidou development Process, the key components of the foreign manufacturers have suddenly notified due to government cessation of supply events .At this time domestic technology research has been completed, the experts decisively decided to use domestic substitute .Foreign learned that post-pause, not only immediately Supply and cut prices by more than half.But, China has tasted the sweetness of the core technology, which further strengthened the determination of BeiDou localization.
It is worth mentioning that the Beidou 3 using China's first self-developed anti-radiation quad-core SoC2012 chip system, as well as China's own intellectual property calculator operating system SpaceOS2. Experts said the performance of the chip is Compass Phase I Compared with the operating systems such as Windows, iOS and other operating systems, SpaceOS2 is not only smaller in size, but also manages hundreds of tasks at the same time. In the satellite Operating more than 10 years, the operating system will not strike, slow.
According to reports, after more than 10 years of arduous efforts by space experts, long-term reliance on imports of traveling wave tube amplifier components, microwave switches, high-power power controllers and other key aerospace products for the first time to achieve the main and backup all localization, Compass 100% Parts localization.
2. Fudan University debut two results 'IC Design Olympics' ISSCC 2018;
Set micro-network news, the United States local time on February 11, 2018 International Solid State Circuits Conference (ISSCC 2018) was held in San Francisco, 202 from academia and industry cutting-edge research results in the field of IC design top academic conference Released to the world by the Fudan University School of Microelectronics Wireless Integrated Circuit and System (WiCAS) Task Force and brain chip research center simulation and RF integrated circuit design team developed two results were unveiled, respectively, with the article "Narrowband Internet of Things NBIOT A Compact Dual-Band Digital Doherty Power Amplifier Using Parallel-Combing Transformer for Cellular NB-IoT Applications, "and a" 75.4% effective power conversion, 0.1% ASK 13.56 MHz Wireless Power and Data Transfer Receiver Achieving 75.4% Effective-Power-Conversion Efficiency with 0.1% ASK Modulation Depth and 9.2 mW Output Power 'modulation depth and 9.2 mW output power. ) Was presented at the conference, along with three other selected papers from mainland China Th 'IC Design Olympiad' injection of Chinese wisdom. This is the Fudan University since 2014 after a lapse of four years once again published his work in the meeting.
'Land Reclamation' on 'Saline Alkalinity': Watt-level Dual-band CMOS Digital Doherty Power Amplifier Chip Boosts Internet of Things
According to the industry tradition, most semiconductor chips are manufactured by the currently mature CMOS technology, which has the advantages of low production cost, low power consumption of the chip, and high replication of the circuit, but for a power amplifier chip, It is a challenge to realize the high-frequency signal based on the superiority of CMOS technology, which is as difficult as planting fruit trees in saline-alkali soil. However, the Wireless Integrated Circuit and System (WiCAS) group led by Professor Xu Hongtao of Fudan University's School of Microelectronics It is a 'land reclamationist' on this 'saline land', not only to 'live' but also to 'harvest'.
Recently, the research group made breakthroughs in the design of high-performance complementary metal-oxide-semiconductor (CMOS) digital power amplifiers. A new type of digital RF power synthesis technology was put forward. The successful development of a dual-band CMOS digital Doherty, Power amplifier chip Related papers published in ISSCC 2018. The subject by Xu Hongtao, Yin Yun, Xiong Liang, Zhu Yiting, Chen Bowen, Min Hao and other teachers and students involved, the first author of the paper is Fudan University Institute of Microelectronics Yin Yun young teachers.
In order to improve the efficiency and performance of the power amplifier chip, the research group proposed a new type of digital RF power synthesis technology for building a chip architecture that has never been proposed and used in the use of CMOS technology to achieve watt-class power, dual-band And a single module with the help of the four major features, to achieve the goal of high efficiency and low consumption to provide a guarantee.On the one hand, the research group decisively adopted to simulate the realization of high-frequency digital signal method to overcome the CMOS process to do more difficult RF circuit On the other hand, the research team realized the watt level power by solving the problems of master-slave control, matching network design and so on in the realization process of Doherty technology, which is rare in the field of power amplifier chip design, especially in digital architecture .
In addition, there are two frequency bands in general wireless communications.Traditionally two transmitters have been used to implement the transmission of two frequency bands, and the technology enables two frequency bands to be transmitted by one transmitter, saving costs and at the same time reducing the size of the chip Half the same time, this only one module of the digital chip, you can easily achieve the traditional chip multi-module functions.
Compared with the latest research results both at home and abroad, the chip achieves near-watt output power, dual-band coverage and the industry's highest average emission efficiency with minimal area. Not only has the "fruit tree" been successfully planted in 'saline land' But also realized the achievement of doubling production volume and the quality of the harvested fruit is also much higher than other similar products, providing an effective solution for the complete integration of the radio frequency chip, which means that the manufacturing cost of the chip itself is reduced, while the extremely low The cost is the precondition for the popularity of 'Internet of Things' that is worth billions or even billions of blue ocean.
If the Internet of Things market is compared to a war, electronic recording devices on separate objects are a bastion, and the power launcher is a communication tool that works together between forts, and the chip in the transmitter is to ensure high communication quality , A long time, the key to the stability of the signal.If you do not have this small chip, the various' object fort 'will become a mess.' Probably twenty or thirty dollars can do a program, in order to reach tens of billions level Scale, you need low-cost chips. 'Xu Hongtao introduction.
For the network landing, the low cost of this also means that the requirements of running power.Realistic market demand A device installed in a certain place can continue to work for a few years, thereby reducing labor and maintenance costs. The result can exactly meet this need, extending the past few weeks to the ideal of a few years.
In addition to IoT applications, this technology will also advance to the same low-cost, high-efficiency broadband and mobile communications. Through cooperation with technology companies and major projects, the technology will further enhance the communication rate.
'Fish and bear's paw' can have both: wireless energy and data co-transmission of new technologies for biomedical electronic solutions
Although wireless energy transmission technology combining wireless data transmission function has drawn more and more attention from academia and industry for its broad application prospects, wireless energy transmission and wireless data transmission itself are like a pair of hard-to- Bear's paw. '
On the one hand, how to use the same antenna to obtain both data and energy simultaneously is a technical challenge in designing this collaborative transmission system because of significant differences in key physical acquisition methods, energy levels and common frequency bands. On the other hand , How to avoid the mutual influence between data transmission and energy transmission path and reduce the loss of wireless energy transmission efficiency due to data transmission after realizing the data and energy transmission of the same antenna is an issue that needs to be solved urgently.
This situation will be changed by Fudan University, led by several young faculty of microelectronics brain chip research center analog and radio frequency integrated circuit design team has made a breakthrough in wireless energy and data transmission system integrated circuit design made a breakthrough, put forward A new technology for wireless energy and data co-transmission, and made a key breakthrough in the design of energy-efficient wireless energy transmission systems.Related papers were published in ISSCC 2018. Wang Dan, a young teacher at Fudan University School of Microelectronics, is the first author of the paper, Ye Dawei is the author of the correspondence, and both of them are young researchers who have been introduced by Brain Chip Research Center of Fudan University.
The new wireless energy and data transmission technology proposed by the team, using 13.56 MHz as both a frequency band for energy transmission and a carrier frequency band for data transmission, enables the simultaneous wireless transmission of data and energy using only one antenna. In terms of wireless energy transmission , The chip developed by the team adopts dynamic impedance matching technology and voltage conversion rate automatic adjustment technology to realize high-efficiency energy transmission; in wireless data transmission, the signal is amplified by AM modulation and offset limiting amplification technology Only on the envelope of the received signal, avoiding the interaction with wireless energy transmission.
'Let me say hello to you, let you hear clearly.I shout loudly and it will be very tired.in other words, the energy transfer efficiency is not so high, but if there is a horn, I can hear it with just one light talk The energy transmission efficiency is guaranteed. "Ye Dawei life with the example to explain one of the ingenuity compared with the advanced results at home and abroad, the chip to achieve the minimum signal modulation depth of wireless energy and signal transmission at the same time Reached the highest effective energy conversion efficiency, is a successful example of both fish and bear's paw.
According to reports, the birth of wireless energy and data co-transmission technology, and the brain chip research center team currently involved in a Shanghai Science and Technology Research project 'microchip-based brain activity multi-channel recording system' has great origin. To meet the practical needs of neural capture of experimental animals via implanted chips in the project, the team must develop a chip that enables the simultaneous transmission of wireless data and energy.
Based on this project, the system chip provides a practical application of energy supply and signal transmission solutions.And similar scenarios are common in a variety of biomedical electronics applications, especially the use of wireless powered implantable and wearable Biomedical electronic system as the representative.
Wang cited an example of an implantable chip for monitoring blood glucose and other indicators: 'On the one hand, the chip needs to transmit the monitored data, and on the other hand, the chip work also needs continuous energy supply, all of which need to be carried out wirelessly.' In the past, this application faced an awkward dilemma: 'Data is not very good at transmitting energy, and there is no energy at the time of data transmission.' "But under the new technology developed by the team, the challenges of the power supply solution are promising .
In the meantime, this technology may also be applied to other lifestyles in addition to biomedical electronics.'If my cell phone is dead, there is still a lot of power on your cellphone, can I charge your cell phone? ' Wang 彧 made a hypothesis about the interaction of mobile phones: 'In fact, we can use our technology.
3. Zhongke Jingyuan new semiconductor material production project put into operation in Guizhou Dushan;
Set micro-grid news, according to local media reports, February 4, Dushan Zhongke Epistar Information Materials Co., Ltd. new semiconductor material production project officially put into operation, marking the development of new material Dushan a significant step forward.
Dushan Zhongke Epicenter Information Materials Co., Ltd. is a high-tech enterprise mainly engaged in R & D, production and sales of new semiconductor materials (gallium arsenide single crystal) invested by Beijing Zhongke Jingdian Group in Dushan. Its products Mainly used for making LD, LED, OEIC, photovoltaic device, MESFET, HEMT, HBT, Transistors), ICs, microwave diodes, Hall devices, etc., are the most important supporting materials in the optoelectronics and microelectronics industries.
The project was settled in Dushan Economic and Technological Development Zone in November 2016 with a total investment of more than 60 million yuan and a planned production scale of 250 GaAs crystal production lines. Starting the day with 48 single-crystal systems started, With an annual output of about 600,000 gallium arsenic crystal materials, with an annual output value of 100 million yuan, a tax of 10 million yuan.
The person in charge of the company said that it will take the project put into production as a new starting point and continue to give full play to its advantage to create a leading industry-leading enterprise both at home and abroad. This will truly enable Dushan's new material industry to occupy a place in the domestic and international markets and boost Dushan's industrial restructuring Upgrade, economic development across.
4 Huawei prepared 5G next year unicorn Unicom 990 fight Qualcomm;
Huawei 5G layout volume is increasing, Huawei is expected to maintain a high annual R & D investment scale will be 10 billion to 20 billion US dollars, of which a large part will be devoted to 5G. Huawei also announced that it will invest 5 billion yuan by 2018 for 5G technology research and development, will launch a full set of 5G network equipment for commercial use in 2018, and will launch a 5G Unicom chip and smart phone in 2019. Huawei Sprint 5G According to research firm IHSMarkit, the global telecom capital spending will increase in 2017 Down 1.8%, the mainland's telecommunications capital expenditures fell by 13% .In the winter, both operators and communications equipment manufacturers are looking for new growth points, especially at this point in 2018, as the first year of the commercial sprint 5G, each Huawei products at MWC precommunication conference in 2018 Huawei CEO Xu Wenwei, president of strategy Marketing, said that it is about to release a 5G commercial version based on NSA and introduce a commercial version that includes commercial CPE Within the full set of 5G commercial equipment.In the new year, Huawei to operator business, business and consumer business were set aside 45 billion US dollars, 106 billion and 441 US dollar sales targets, while other businesses have an annual goal of 2.5 billion US dollars, or cloud BU related to Huawei's R & D investment in 2017 more than 12 billion US dollars, ranking sixth in the world.Huahuage said that in the future will continue to maintain high R & D investment, Estimated annual investment size will be 10 billion to 20 billion US dollars, while a large part of them will be devoted to 5G. Huawei 5G product line president Yang Chaobin said that Huawei invested heavily in 5G research and development efforts in 2009, Huawei announced 6 Billion in research costs, and announced last year invested about 4 billion yuan devoted to the development of 5G products .2015 ~ 2017 to participate in the development of 3GPP R15 standard, will launch 5G business in 2018. At present, Huawei's 5G core concepts and technologies Has been adopted by the 3GPP organization and Huawei has led the way in 5G specifications, industry advancement, application verification and has conducted large-scale 5G commercial tests in Seoul, South Korea, Vancouver, Canada Layout AI to Promote NB-IoT Commercial In addition, In 2018, Huawei will promote the number of NB-IoT commercial networks to 100+ and will increase its investment in IoT ecology, which will increase GLocal's eco-partners from 1,000 to 3,000. , Huawei will promote 150 operators based on video as the basic business; for AI, Huawei will be mainly used internally to enhance Huawei's internal efficiency, external customers to improve efficiency. Huawei said that artificial intelligence as a common technology, will be integrated into Huawei cloud, pipe, end of the various solutions in. 2019 launch of 5G Kirin chip 2019, Huawei will launch support for 5G Kirin chips and smart phones.It is expected that the sea is developing 5G baseband and support for the baseband Kirin processor, this baseband related products will be launched in 2019, smart phones will be the first to support the baseband device.China will launch unicorn 980 in 2018, unicorn 990 will be introduced in 2019, it is expected unicorn 990 will be Huawei The first to support the 5G processor.Huacent HiSilicon Kirin series of major competitors Qualcomm has released at the end of 2016 the first 5G chip, Qualcomm Xiaolong X50 platform, including SDR051 millimeter-wave transceiver, 5G baseband and support PMX50 power management chip, the first batch of Qualcomm commercial products is expected to be launched in the first half of 2018. If Huawei HiSilicon Kirin 990 will support 5G network, time than Qualcomm in 2018 Only one year later. DIGITIMES
5. Vimicro Artificial Intelligence ZYTO to enter the field of personal medical testing;
Recently, Zhang Yandong, chairman and CEO of Beijing AVIC Micro-chip Technology Co., Ltd., and Dr. Cook, president of ZYTO, and Emily Lu, president of Beijing Yixing Micro-artificial Chip Technology Co., Ltd., successfully signed the strategic cooperation framework agreement.
The two companies are working together to develop medical products based on modern bioinformatics scanning technology. By using high-precision GSR detection methods, a variety of Virtual item models are set up to stimulate and scan in a targeted manner. The bioelectric feedback of the human body is recorded and the baseline signal of the Virtual item is processed Matching calculation and depth analysis of data analysis, the measurement results and the physiological index of the human body to match, so as to obtain the human physiological index of the quantitative data.After the successful development of the product of the body of the body's rapid detection, Greatly improve the health assessment results, in the future will become people's portable doctor.
Dr. Cook said: "I am impressed with Vimicro's neural network processor technology and the Soc chip. I believe we can work together in many aspects in the future."
Zhang Yundong said: "ZYTO is a global leader in GSR technology and Vimicro-micro AI technology can help ZYTO expand its medical equipment to personal health monitoring so that more people can enjoy the features previously only available on expensive equipment.
Beijing Vimicro Micro-Chip Technology Co., Ltd. focuses on the combination of NPUs and video codecs to develop high-performance, low-power, small-size smart sensing and compression coding chips that enable artificial intelligence to pass Internet, IoT, wearable network and other ways to apply to every corner of our lives.China's first embedded neural network processor (NPU) chip 'Starlight One,' released in 2016, has been used in various fields. Has an experienced AI technology team to the State Key Laboratory as a platform, and many famous universities and research institutions at home and abroad have formed a strategic cooperative relations, continuous technological breakthroughs, in 2017, under the leadership of chairman Zhang Yun-tung team launched 'Embedded Neural Network Processor Soc chip R & D and application' project won the 'Beijing Science and Technology Progress Award'.
ZYTO, a global leader in the field of bio-communications, produces technologies that provide insight into individual health, using proprietary hardware and software that facilitate dialogue between the computer and the human body. The resulting dynamic data exchange , Referred to as biometrics or scanning, involves the signature of a computer-generated actual item and records the body's skin reaction, which is a well-established method of monitoring stress responses and is commonly used for things like polygraph tests and biology Feedback, there are thousands of functional medical doctors and other health professionals in the world who believe in biotech technology to help their clients make the best health decisions about nutrition products and lifestyles.China network
6. Two-dimensional materials to build ultra-short channel transistor research has been progress
It is still the trend in this area to find new materials and to develop new technologies to further reduce the size of the devices, as the miniaturization process of traditional silicon-based semiconductor devices gradually approaches its physical limit.Traditional silicon-based field effect transistors require that the channel thickness be less than that of the channel 1/3 of the length to effectively avoid the short channel effect, but the channel thickness can not be reduced continuously due to the limitation of traditional semiconductor materials. In recent years, the use of two-dimensional semiconductor materials to construct short channel transistor devices has become a frontier exploration As a potential material for constructing ultrashort-channel transistors, 2D materials are theoretically effective in reducing the short-channel effect due to their thickness reaching the physical limit, but a true three-terminal sub-5nm short-channel field effect Transistor devices to effectively avoid short-channel effects, there are still technical challenges.
In order to solve the problem of how to use the two-dimensional semiconductor materials to construct short-channel transistors, Xie Lixin, a doctoral student in the N07 group at the Institute of Physics, Chinese Academy of Sciences / Beijing Condensed Matter Physics Research Center, , A kind of new short-channel transistor device based on full two-dimensional material is designed for several kinds of core materials such as channel, electrode and gate dielectric in the device structure.Aiming at the contact electrode material, on the basis of the previous work, Graphene nanogap electrodes have been developed based on the grain boundary etching and broadening techniques with a gap size of more than 3 nanometers.The single layer of molybdenum disulfide as a channel material and the gate dielectric material Layer boron nitride were stacked in sequence to construct a single-layer molybdenum disulfide field-effect transistor device having a series of different channel lengths with a minimum channel length of ~ 4 nm. Using graphene as an electrode in contact with molybdenum disulfide Has the advantage of two aspects, namely, low contact resistance and very weak edge effect, so as to achieve the electric field of the channel carrier efficient regulation. The electrical test results of the device show that when the channel length is larger than 9 nm, the off-state current is less than 0.3pA / μm, the switching ratio is more than 107, the mobility is up to 30cm2V-1s-1, the subthreshold swing is ~ 93mV · dec- 1, Leakage barrier reduced< 0.425V·V−1, 短沟道效应可以忽略; 当沟道长度低至4纳米时, 短沟道效应开始出现但仍较弱. 此外, 这种短沟道器件可以承载超大电流密度大于500µA/µm, 为目前报道的最高值. 该研究利用全二维材料构筑超短沟道场效应晶体管器件, 验证了单层二硫化钼对短沟道效应的超强免疫性及其在未来5纳米工艺节点电子器件中的应用优势.
Relevant research results published in the "advanced materials." The research has been the national key basic research and development program, the National Natural Science Foundation of China, CAS Key Research Projects, strategic pilot science and technology funding.
Source: Institute of Physics, Chinese Academy of Sciences