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1. Following the $ 30 billion investment, Ziguang Group and Nanjing Bank signed a strategic cooperation agreement;
According to Nanjing Daily, on November 21, Ziguang Group signed a strategic cooperation agreement with Bank of Nanjing.Zhang Weijia, member of Provincial Party Committee and Party Secretary, Mayor Rui, mayor of Mayor and Zhao Weiguo, chairman of Ziguang Group, attended the signing ceremony. Hu Shengrong and Zhaowang Group President Zhang Yadong signed an agreement on behalf of both parties. Purple Group Co., Ltd. is one of Tsinghua Holdings Co., Ltd., one of the backbone enterprises in January this year, with a total investment of 260 billion yuan Ziguang Nanjing Semiconductor Industry Base and new IT investments and R & D headquarters project settled in Pukou Economic Development Zone, at present, the project is actively promoted.
2. Wei-Wei Wei, Southeast University, participated in A-SSCC and won the award;
Weibo News, Recently, Associate Professor Weiwei Wei of Southeast University School of Electronic Science and Engineering with two doctoral students Xin Chao, Wentao To attend the Asian Solid State Circuits Conference (A-SSCC), a total of 2 papers were received, of which 1 Posted in the SDC (Student Design Contest, student design competition), which is the only one short-listed papers in mainland China.In the field demonstration session, after fierce defense and review, Southeast University School of Electronic Science and Engineering thesis' A 0.44V- 1.1V 9-Transistor Transition-Detector and Half-Path Error Detection Technique for Low Power Applications' received the 'Distinguished Design Award' (outstanding design award), Wei Wei and Dai Wentao respectively academic report.
A-SSCC stands for the Asian Solid-State Circuits Conference (Asian Solid-State Circuits Conference), is supported by the IEEE SSCS (Institute of Solid State Circuits Society of American Institute of Electronics) one of the four major international conferences in Asia is dominated by integrated circuits About 400 people from more than 50 countries and regions including Asia, Europe and the Americas attended the event, and the Student Travel Grant Award is also included.
3. Chinese scientists predicted the birth of T-carbon, a new three-dimensional structure of graphite and diamond side by side;
Chinese scientists predict the birth of T-carbon, a new three-dimensional structure of graphite and diamond side by side
Li Daqing / Science and Technology Daily
Carbon atoms are magical and form the world's softest mineral graphite, but also form the hardest material diamond naturally found in nature. Recently, scientists in our country have also created 'magic' in the study of carbon atoms: T-carbon, a three-dimensional carbon structure predicted by theoretical calculations by Professor Su Gang and others from the School of Physics finally came into being. The joint research team of Chinese and foreign scientists succeeded in synthesizing T-carbon, making T-carbon Another three-dimensional new structure of carbon with graphite and diamond.
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November 23, Su Gang told Science and Technology Daily reporter interview that T-carbon has a high hardness. It is a fluffy carbon material, there is a great room for internal use, if used for energy storage materials, Its hydrogen storage capacity of not less than 7.7% by weight.We believe that T-carbon will have a wide range of applications in the field of photocatalysis, adsorption, storage, aerospace materials and other fields.
Since the 1980s, scientists have had a strong interest in obtaining a new carbon structure and spawned two Nobel Prizes, the most notable of which are the research on carbon fullerenes (synthesis in 1985 and 1996 Nobel Prize in Chemistry), graphene (Produced in 2004 and won the Nobel Prize in Physics in 2010.) These structures not only make a huge difference in related fields such as chemistry, physics, materials and information science but also lead to a large number of industrial and technical applications.Based on these structures , Scientists have synthesized many new derivatives, made new functional devices and related products, and promoted the rapid economic and social development.
The carbon atoms have four valence electrons. After the orbital hybridization (some original atomic orbital atoms recombine into new atomic orbitals), it is like four hands and has strong combination with itself and other elements The ability of carbon to form sp2 hybrid graphene to form sp3 hybrid diamond, as well as sp-sp2 hybrid graphite alkyne, sp-sp3 hybrid diamond alkyne. 'Chemically, carbon can be combined with other elements in Together, it consists of DNA, proteins and other important biological macromolecules, making carbon one of the most essential elements of life on Earth, 'says Su Gang.
In 2011, Su Gang instructed the doctoral students to make sacrifices Lei (collaborators including Dr. Yan Qingbo, Professor Ye Fei and Professor Zheng Qingrong) after a large number of comparative studies proposed that if each carbon atom in the cubic diamond is composed of four carbon atoms Of the regular tetrahedron structural unit replaced, will form a new type of carbon three-dimensional cubic crystal structure.
Based on the first principles of density functional theory, they found that this structure is extremely stable in terms of geometry, energy and kinetics. They named this carbon allotrope T-carbon (T-carbon It has been shown that T-carbon has the same space group as diamond and is a semiconductor with direct bandgap that can be tailored to photocatalytic bandgap by doping. T-carbon also has a distinctive feature of very low density Small, about two-thirds of graphite, half of diamonds.
Calculated by Su et al., It was found that T-carbon may be more easily formed under negative pressure. T-carbon may be observed in cosmic interstellar dust or extrasolar planets.
Experts on the discovery of T-carbon spoke highly of the fact that T-carbon opened up a new era of carbon structure research and would inspire other scientists to conduct extensive theoretical and experimental research. '
T-carbon has such a wonderful unique properties, it can be synthesized in the laboratory? Su just completed theoretical predictions, the past few years has been committed to promoting the T-carbon experimental synthesis of early this year, Xi'an Jiaotong University and Singapore Nanyang Technological University The joint research team succeeded in the transition from the sp2 to sp3 chemical bonds by the picosecond laser irradiation of multi-walled carbon nanotubes suspended in a methanol solution under extreme deviations from the thermodynamic equilibrium state. The new carbon material formed The T-carbon predicted by theory is completely consistent, demonstrating the synthesis of T-carbon, and the experimental results on the synthesis of T-carbon were recently published in Nature.
(Original title: carbon family Tim new d! I scientists predicted the birth of T-carbon, comparable to graphite and diamond!) Science and Technology Daily
4. Progress in the study of the polarization optical properties of two-dimensional GeSe where semiconductors are located;
The asymmetry of vibration direction in the propagation direction of light is called polarization and the polarization is light as one of the important features of electromagnetic wave.Polarization detection has been demonstrated in linear polarizer (LPL), polarization remote sensing and medical diagnosis and treatment The research of polarization detection in the visible waveband has become more and more popular and the polarization detection of other special wavebands needs to be further explored.Recently, researchers Li Jingbo, Wei Zhongming, superconductor researcher of the Institute of Semiconductors, Chinese Academy of Sciences, and Tianjin University professor Hu Wenping cooperation, around 2D GeSe material in the shortwave near infrared (700-1100 nm) polarization detection made new progress.
GeSe is a typical binary IV-VI chalcogenide. Studies have shown that GeSe crystallizes in a highly anisotropic, layered, orthorhombic system (space group Pcmn-, a space group Bmab-symmetry In addition, the bandgap of GeSe ranges from 1.1 to 1.2 eV, making it suitable for the dichroic band to be distributed in the 1100 nm band (visible / shortwave near-infrared band). Near the band edge, the high density results directly In view of the above characteristics, the unique properties of GeSe in the in-plane anisotropy and other aspects to be studied to achieve its application in visible / shortwave near-infrared light polarization detection.
In this context, the team of researchers utilized the high vapor pressure of GeSe materials to obtain high-quality GeSe layered single crystals by vacuum vapor deposition.The XRD and TEM characterizations confirmed that the obtained 2D GeSe nanosheets have very good High crystallinity.At the same time, through the study of Raman spectroscopy, light absorption spectrum and photodetector, we systematically analyze the lattice vibration and optical anisotropy of GeSe (see photo) .Because of several typical Raman vibration Raman spectroscopy provides a quick and easy method to determine the orientation of GeSe. The optical anisotropy of GeSe is reflected by the polarization Degree-resolved optical absorption spectra and photocurrent spectra, the dichroic ratio was 1.09 at 532 nm, 1.44 at 638 nm and 2.16 at 808 nm, which was in good agreement with the absorption spectra The heterosexual absorption ratios were 1.09, 1.26, 3.02, respectively). Both of these methods systematically determined that the best anisotropy of GeSe is around the 808 nm wavelength. Combining theoretical calculations, the system detects 8-16nm shows the thickness of the GeSe help to achieve the highest quality of light detection results. The research shows that two-dimensional line GeSe polarization detection areas have potential applications.
Relevant research results recently published in the Journal of the American Chemical Society research work funded by the Chinese Academy of Sciences and the National Natural Science Foundation of China.
Papers link
The angle dependence of GeSe low lattice symmetry depends on the anisotropic Raman signal and the detection performance at 808 nm laser. Chinese Academy of Sciences
5.ICCAD 2017 trillion lead you into a new generation KX-5000 series processors
2017, 16th -17th, 2017 China IC Design Industry Conference 2017 and ICCM 2017 Successfully Formed in Beijing with the Theme of 'Innovative Drive and Leading Development' Held in the 17th IC and IP Design Forum held on the occasion, Shanghai Siu-Core Semiconductor Co., Ltd., vice president of Dr. Fu Cheng delivered a speech entitled 'How steel is made' live speech, a profound analysis of the upcoming release of trillion core A new generation of first KX-5000 series processor R & D process, by the participating leaders and guests of widespread concern.
At present, the development trend of China's IC industry is swift and violent. The sales of the three major industries in design, manufacture and IC packaging and testing all show a 2-digit year-on-year growth. However, the sharp contrast with this is that the global IC market share is still relatively large Small, at the same time each year still need high import of integrated circuit products, which reflects the reality of the problem of insufficient self-sufficiency chip in our country, especially the high-end general-purpose CPU chips that are commonly used in the fields of PCs and servers are still almost totally imported.
Fucheng Dr. pointed out that high-end general-purpose CPU is to promote the development of the information industry can not be ignored key products.On the one hand, PC in the desktop office long-term irreplaceable, big data, cloud computing and other technology development is also increasing demand for data centers, PC, server shipments or will remain high.On the other hand, high-end general-purpose CPU and integrated circuit manufacturing process is closely related to the development of integrated circuit industry and China's economic restructuring and upgrading of an important factor, but also a profound impact on the information industry Independent development and network security strategy.As one of the few companies in the field of high-end general-purpose CPU, KCMC will continue to unswervingly develop domestic high-end general-purpose CPUs that are independently and controllable. To promote the development of China's IC industry and information industry Development contributes.
KUCPU-made general-purpose CPU has gone through several iterations from ZX-A to ZX-B, and then to the first ZX-C, ZX-C + series, now a new generation KX-5000 series processors have also been stored Compared with the first ZX-C series processors, KX-5000 series processors were greatly optimized in the design and development process, such as single-core architecture, core interconnect, chip functions, custom circuits, etc. , Its single-core performance and overall chip performance are greatly leapt.
The first KX-5000 series processor with a new SOC architecture, is the first domestic dual-channel DDR4-2400 memory to support the common CPU, single-chip integrated CPU, GPU, memory controller, HD video decoder, PCIe 3.0 ports, Will provide both 4-core and 8-core versions, the chip based on 28nm process, the total transistor up to 2.1 billion, is the first to open the ZX-C series processors, 7 times the first KX-5000 series processors are fully compatible with the x86 instructions, Support SM3 / SM4 security encryption instructions and hardware IO virtualization and other functions, with the ZX-200 IO expansion chip can support SATA3.0, USB3.1 Gen2, Gigabit Ethernet and other high-speed interfaces.
It is worth mentioning that, KCC core fully equipped with independent development capabilities of the x86 CPU custom circuit IP, and related results have reached the commercial standard. First open KX-5000 series of processor-specific standard cell library, SRAM, sensors, true Random Number Generator, DDR3 ePHY, PCIe Gen3 ePHY, SATA Gen3 ePHY, USB3.1 Gen1 / USB3.1 Gen2 ePHY, DP & HDMI and other custom circuits, all independently developed by the trillion core team, and with high precision, full compatibility guarantee Features, of which, PCIe Gen3 and USB3.1 also passed the international standard test respectively. The high-end general-purpose processors and self-controllable complete products exhibited by KCMG were closely watched by the guests
In all aspects of investment, KC Open first KX-5000 series processor R & D work total investment of nearly 10,000 people a month; simulation instructions more than 150 billion combinations; test software projects more than 300 kinds of operating performance evaluation test incentives more than 4000 Hour. During the system verification phase, it also conducted comprehensive tests on functions, performance, power consumption, yield, stress and aging for CPUs, GPUs, memory controllers, PCIe, etc., clarifying more than 400 adaptation problems, Through the Windows hardware quality certification, and fully adapted, including Windows 7, Windows 10, Windows 10, Shenzhou Wang Xin government version, the German side, winning unicorn, Puhua and other operating systems, and these can only be regarded as the entire research and development A drop in the sea of history.
Dr. Fu Cheng said during his speech that the research and development of a general-purpose CPU with x86 architecture is a huge project. KX-5000 series core processor, IP, process model and so on are all more than 1,000 engineers who have autonomy Complete development, and its CPU performance, IO / DDR specifications and hardware and software compatibility, are in a leading position in the field of domestic CPU.At the same time, he also pointed out that in the trillion core high-end universal CPU R & D process, all aspects of industrial ecology The cooperation and support provided by our partners in China are equally grateful and respected.
During the ICCAD 2017, KX-5000 series processors and ZX-200 IO expansion chips that will be released soon will be released soon. The first ZX-C series processors have been mass-produced, the first ZX-C + series 4-core processors, Katherine ZX-C + series of 8-core processors and ZX-100S chipset also conducted a physical show, can be described as much attention at the event.
Zhaxian ZX-C series processors using the first Lenovo CF03-T notebooks, and Tsinghua Tongfang Chaoxiang Z8000 series desktop also exhibited the same period, the two models were pre-installed Windows 7 and Windows 10, Operating system, office application experience is excellent, can fully meet the needs of desktop office applications, fully equipped with a seamless replacement of similar international machine manufacturers the conditions.
Even more encouraging is that at the summit forum held on the 16th, Professor Wei Shaojun, chairman of IC Design Branch of China Semiconductor Industry Association, made it clear during the speech that Lenovo's desktop based on the ZX-C series processor Computer applications in the related fields are satisfactory, with the same level of stability and reliability around the world.
At present, including the above two models, including the use of trillion-core CPU Lenovo M6100 desktop days, Shanghai instrument at the time of ZT-XMD10-R04H05 micro-desktop has also been successfully listed in Shanghai government procurement network electronic market. Based on this, KCMC and its partners are still actively promoting the promotion of domestically produced autonomous controllable machines across the country through various channels such as government procurement and other channels, expanding and creating more convenient conditions for their wider application.