Electrical enhancement: Engineers speed up electrons in semiconductors
Researchers from Graduate School of Bio-Applications and Systems Engineering at Tokyo University of Agriculture and Technology (TUAT) have sped up the movement of electrons in organic semiconductor films by two to three orders of magnitude. The speedier electronics could lead to improved solar power and transistor use across the world, according to the scientists.They published their results in the September issue of Macromolecular Chemistry and Physics, where the paper is featured on the cover.Led by Kenji Ogino, a professor at Graduate School of Bio-Applications and Systems Engineering at TUAT, Japan, the team found that adding polystyrene, commonly known as Styrofoam in North America, could enhance the semiconducting polymer by allowing electrons to move from plane to plane quickly. The process, called hole mobility, is how electrons move through an electric field consisting of multiple layers. When a molecule is missing an electron, an electron from a different plane can jump or fall and take its place.Through various imaging techniques, it’s fairly easy to follow the electron trail in the crystal-based structures. In many semiconducting polymers, however, the clean, defined lines of the crystalline skeleton intertwine with a much more difficult-to-define region. It’s actually called the amorphous domain.“[Electrons] transport in both crystalline and amorphous domains. To improve the total electron mobility, it is necessary to control the nature of the amorphous domain,” Ogino said. “We found that hole mobility extraordinarily improved by the introduction of polystyrene block accompanied by the increase of the ratio of rigid amorphous domain.”The researchers believe that the way the crystalline domain connects within itself occurs most effectively through the rigid amorphous domain. The addition of polystyrene introduced more amorphous domain, but contained by flexible chains of carbon and hydrogen atoms. Even though the chains are flexible, it provides rigidity, and some degree of control, to the amorphous domain.Electrons moved two to three times quicker than normal.“The introduction of a flexible chain in semicrystalline polymers is one of the promising strategies to improve the various functionalities of polymer films by altering the characteristics of the amorphous domain,” Ogino said. “We propose that the rigid amorphous domain plays an important role in the hole transporting process.”Enhanced hole mobility is a critical factor in developing more efficient solar devices, according to Ogino. Next, Ogino and the researchers plan to examine how the enhanced hole mobility affected other parameters, such as the chemical composition and position of the structures within the polymer film.
Key word:
Release time:2018-10-18 00:00 reading:1154 Continue reading>>
Apple hires <span style='color:red'>engineer</span>s from Dialog
Key word:
Release time:2018-10-12 00:00 reading:1021 Continue reading>>
Real-time digital exploration for every <span style='color:red'>engineer</span>
  Enabling engineers to create smarter designers faster and more efficiently is the current focus of ANSYS, who hopes to revolutionise product engineering with the commercial release of its ANSYS Discovery Live.  Discovery Live is designed to enable engineers to simulate designs in real-time, both quickly and more economically. It is said to be expanding Pervasive Engineering Simulation, which should allow engineers to ask ‘what if’ questions upfront in the design process where most of the product costs are locked in. ANSYS says this will allow rapid exploration of thousands of design options and the ability to receive immediate feedback.  The idea is that engineers will be able to immediately examine the impact of their design changes, instead of waiting weeks or months to set up, run and analyse prototypes.  "We had the opportunity to preview ANSYS Discovery Live and it’s obvious this technology is a game changer in providing instantaneous simulation to enable interactive design exploration,” said Craig Skinner, chief aerodynamicist, Aston Martin Red Bull Racing.  “ANSYS Discovery Live empowers us to run different design scenarios in real time and speeds our development process considerably,” added Matt Carlson, vice president business development, Wibotic. “Discovery Live provides us a sense of confidence before manufacturing and significant time and monetary savings – enabling us to drastically reduce prototyping fees and spend more time perfecting usability and aesthetic design.”  ANSYS is said to bring Discovery Live together with ANSYS AIM and ANSYS SpaceClaim into one product family, in a bid to enable engineers at every stage of design. The technology is also designed to empower designers to collaborate with simulation experts using ANSYS flagship products.  "Discovery Live's real-time simultaneous visualisation and simulation powered by NVIDIA professional GPUs and CUDA will transform the way engineers work," said Bob Pette, vice president and general manager, professional visualisation business unit, NVIDIA. “We’re working with ANSYS on further breakthroughs to improve workflows and enhance creativity so designers and engineers around the world can bring better products to market faster.”
Key word:
Release time:2018-02-14 00:00 reading:1161 Continue reading>>
Engineers Charged in Tech Theft Plot
Four former Applied Materials executives have been charged by the U.S. Justice Department in an alleged plot to steal trade secrets from their employer and use them in a competing startup in China.According to the U.S. Attorney's Office and the FBI, the four men allegedly downloaded information from an Applied Materials database related to technology used in the production of LED wafers and plotted to use it to form a new startup to be located in China and the U.S.. The men allegedly downloaded more than 16,000 drawings, discussed their plans in multiple emails and attempted to recruit investors for the startup.The four men — Liang Chen, Donald Olgado, Wei-Yung Hsu and Robert Ewald — have each been charged with one count of conspiracy to commit theft of trade secrets and 11 counts of possessing stolen trade secrets. Each charge carries a maximum penalty of 10 years in prison and a $250,000 fine.Chen was a former vice president and general manager of Applied's alternative energy products division; Hsu was a vice president and general manager within Applied's semiconductor LED division; Olgado was a managing director of engineering within the products business group; and Ewald was a director of energy and environmental systems within the alternative energy products division, according to the U.S. Attorney.Published reports indicate that Olgado was fired by Applied in 2013, while the other three men all resigned in late 2012.The charges were handed down late last month and announced last week by U.S. Attorney Brian J. Stretch and John F. Bennett, an FBI special agent in charge. The defendants are scheduled to be arraigned Friday.
Release time:2017-12-13 00:00 reading:1018 Continue reading>>
Engineering needs to be promoted more effectively at schools, says IMechE
  School students have little exposure or understanding of engineering, which is leading most to choose subjects which effectively rule out this career path early in their schooling, according to a report from the Institution of Mechanical Engineers.  The report – We think it's important but don't quite know what it is: The Culture of Engineering in Schools – says that, although students have a vague sense of engineering’s value, its low visibility in schools means they do not feel informed or confident enough to consider it as a future career. The report also notes that teachers and career professionals lack the time, knowledge and resources to communicate the breadth of career opportunities to students.  Peter Finegold, the IMechE’s head of education and skills, said: “The report’s findings show positive attitudes and appreciation of engineering among students, parents, teachers and school governors alike. However, few schools are integrating engineering into their teaching and the wider school culture. This is undoubtedly detrimental; not just to the future of pupils in these schools, but also to UK society more generally.”  The report, the third in a series in which the IMechE looks at engineering in schools, calls for the Government to rethink how engineering is presented to future generations, especially girls.  “This lack of exposure to engineering has led to students developing a vague and incoherent understanding of the profession, its career opportunities and what it does for society,” said Finegold. “We accept that Government is unlikely to change the curriculum fundamentally or introduce engineering as a standalone school subject. Therefore, we recommend that the socially beneficial, problem-solving aspects of engineering are integrated into the existing curriculum, particularly in science and technology subjects, enhancing young people’s exposure to engineering and its world-changing potential.”  The report has nine key recommendations:  Government should establish a working group of leading educationalists and other stakeholders to examine innovative ways in which engineering can be integrated into the curriculum;Government to appoint a National Schools Engineering Champion to provide an effective communication channel between schools, Government and industry;National Education Departments to advocate curricula that reflect the ‘made world’ to modern society, including reference to engineering in maths and D&T;National Education Departments to promote a problem based approach to learning;Schools to appoint an Engineering and Industry Leader within their senior leadership team;Schools to appoint an Industry School Governor to support the Engineering and Industry Leader and embed employer relationships within the school;Schools to implement a robust careers strategy, using benchmarks set out in the Gatsby Foundation Good Career Guidance;The engineering community to agree a unified message about engineering, stressing creative problem-solving and the social benefits of the profession;The engineering community to provide students with the opportunity to take part in activities that explore the political, societal and ethical aspects of technology.  Finegold concluded: “As 2018 has been designated the ‘Year of Engineering’, with support across five Government departments, we believe it is time Government, as part of its future industrial strategy, ensures engineering is placed at the heart of our education system.”
Key word:
Release time:2017-11-27 00:00 reading:1053 Continue reading>>
HPE Names Engineer to Succeed CEO Whitman
  After six years restructuring the storied Hewlett Packard Co., Meg Whitman will step down in February as chief executive of Hewlett Packard Enterprise. HPE named computer engineer and 22-year HP veteran Antonio Neri as its next CEO, suggesting technology changes may play a bigger role in its future than financial ones.  The move was announced as HPE reported quarterly earnings with strong revenue growth, but profits still lagging due to high memory prices and the ongoing commoditization of servers. Neri will continue a restructuring effort announced last month, HPE Next, that aims to shed in 2018 another $250 million in costs at the server and comms infrastructure giant.  Wall Street analysts called the move a surprise given the on-going restructuring and Whitman’s decision earlier this year not to seek a CEO role at Uber. However, HPE insiders said Whitman was expected to leave soon and name Neri her successor.  Many employees assumed Neri would become the new CEO after he was promoted to president earlier this year, said one veteran engineer who asked to remain anonymous. Few expressed surprise at Whitman’s planned departure given that she is 61 and HP’s founders had a tradition of senior executives retiring near age 60 “to provide an upward path for younger talent and to periodically reinvigorate executive leadership,” he said.  “Antonio is ready to take the reins and go the distance,” Whitman said on a quarterly earnings call with analysts Tuesday.  “We have a much smaller more nimble and focused company. We have a good leadership bench, and Antonio is a deep technologist. The next CEO of this company needs to be a deeper technologist,” she said.  Neri is expected to shift gears and aggressively develop technology in-house, rather than focus on mergers, according to two analysts quoted in a Reuters report. Neri began his career at HP as a customer service engineer in the EMEA call center and rose to lead the company’s server division in 2015.  Under Whitman, HP announced in October 2014 it would split into the server-based HPE and HP Inc, a PC and printer company. She then spun out $20 billion worth of HPE’s enterprise services and software operations as well as many smaller units and struck a joint venture for operations in China.  Whitman also bought many small and medium-sized companies that expand HPE’s presence in growth areas in cloud software, all-flash arrays and edge networking. “I have added a lot in shareholder value, financial restructuring and reigniting our innovation engine,” Whitman said, noting her support for the company’s research on The Machine, a new memory-centric, big-data server architecture.  When she arrived in 2011, HP “was way too broad, we were not executing with the right R&D against any of our segments” and the corporation moved too slowly, said Whitman, who will remain on the HPE board.  The former CEO of eBay said she will not return to politics after her unsuccessful race for the governor seat in California in 2010. She also spoke frankly about the reality today for female executives.  "I think in the last couple of decades, we made a lot of progress in the number of CEOs and number of female executives in the C-suite. It has stalled out in the last decade, if you look at the data, and I think that's concerning," she said in an interview with CNBC.  Whitman joined HP as CEO in 2011 after a gut-wrenching period of controversies under three prior chief executives. By contrast, her tenure marked a time of less sensationalism but still great change with on-going reorgs that split the giant company and laid off an estimated 50,000 people.  Some insiders feel overall Whitman, “has done a superior job compared to the prior two CEOs,” said the unnamed HPE senior engineer.  The prior CEO [Leo Apotheker] was a complete disaster, and the one prior to that [Mark Hurd] butchered R&D funding so much that is caused significant long-term damage. During Whitman’s time…product development is more focused, and the company structure has been simplified, which should be beneficial to execution and customers alike,” he added.  HPE still faces difficulties that stem from the ongoing commoditization of servers. Increasingly servers are purchased at cut-rate prices from design and assembly companies, mainly in Taiwan, by Web giants such as Amazon that operate massive public cloud services.  This year’s spike in memory prices nagged HPE’s efforts to grow profits. But Whitman suggested DRAM and flash supplies are improving.  DRAM prices rose another 5-10 percent in the past quarter, she said. But “DRAM pricing appears to be leveling out, and the supply is increasing from key vendors…we’re not counting on a drop in DRAM prices next year nor do we expect another 15-20 percent increase,” she said on the conference call.  NAND flash had supply constraints early in the year, but they are minimal now with more limited price increases, HPE reported.
Key word:
Release time:2017-11-23 00:00 reading:1166 Continue reading>>
Engineer's Guide to Imaging Valley
  Many of us, pleasantly surprised by the new French wave of companies (275, including 233 startups) at the last Consumer Electronics Show, are closely following the vibrant tech startup scene in France.  The grand opening of Station F in Paris in late June, attended by a newly elected French president, is testimony to how France today sees an emerging startup culture as critical to its long-term growth.  Certainly, this boom has exposed countless IoT and wearable startups, who are set up to innovate new software, apps, and services.  Not to be forgotten, though, is that France is a nation known for its hard science.  Military-grade imaging technologies  Over several decades, French researchers and engineers have accumulated a number of key technologies in the field of imaging. They range from X-ray and far infrared to visible image sensors, 3D imaging, and software.  The brain power of France’s military-grade imaging technologies is concentrated in the Grenoble/Lyon area.  Much of France’s knowledge in this area, deeply rooted in defense and military-grade technologies, has been fostered through R&D, technology development, and testing/manufacturing experiences in that region. The French call the Grenoble-Isère area “Imaging Valley.”  Jean-Luc Jaffard, an imaging expert and consultant now serving as Chronocam’s vice president for sensor engineering and operations, called the region “unique.” Within a 25-km radius, “you see concentrations of all the basic imaging technologies — everything from CCD, CMOS, X-ray, and infrared.”  Imaging Valley is as old as Silicon Valley, but lesser-known. The high-tech business in the Grenoble region is much smaller than its U.S. counterpart, its community decidedly insular. The region has spawned few giants such as Intel, Apple, or Google — at least for now.  This is not to say, however, that the region lacks expertise in deep technologies.  Grenoble is home to the renowned European Synchrotron Radiation Facility (ESRF). CEA, the French Alternative Energies and Atomic Energy Commission, opened CEA-Leti in Grenoble 50 years ago. Its mission was focused on the development of microelectronics and information technology.  This is also the region where a lot of French government money has gone to fund scientific research.  As Pierre Cambou, activity leader, Imaging & Sensors at Yole Développement, explained, what started out 50 years ago as technology development for military and nuclear activities switched in the 1980s to semiconductor development. By the 2000s, the region became a center for leading-edge research, tech development, and production of imaging sensors.  The two pillars of Imaging Valley, according to Jaffard, are the military domain and a non-military sector that, together, have developed strains of technologies including CCD, infrared, and CMOS.
Key word:
Release time:2017-08-07 00:00 reading:1132 Continue reading>>

Turn to

/ 1

  • Week of hot material
  • Material in short supply seckilling
model brand Quote
RB751G-40T2R ROHM Semiconductor
MC33074DR2G onsemi
TL431ACLPR Texas Instruments
BD71847AMWV-E2 ROHM Semiconductor
CDZVT2R20B ROHM Semiconductor
model brand To snap up
ESR03EZPJ151 ROHM Semiconductor
BU33JA2MNVX-CTL ROHM Semiconductor
TPS63050YFFR Texas Instruments
BP3621 ROHM Semiconductor
STM32F429IGT6 STMicroelectronics
IPZ40N04S5L4R8ATMA1 Infineon Technologies
Hot labels
ROHM
IC
Averlogic
Intel
Samsung
IoT
AI
Sensor
Chip
About us

Qr code of ameya360 official account

Identify TWO-DIMENSIONAL code, you can pay attention to

AMEYA360 mall (www.ameya360.com) was launched in 2011. Now there are more than 3,500 high-quality suppliers, including 6 million product model data, and more than 1 million component stocks for purchase. Products cover MCU+ memory + power chip +IGBT+MOS tube + op amp + RF Bluetooth + sensor + resistor capacitance inductor + connector and other fields. main business of platform covers spot sales of electronic components, BOM distribution and product supporting materials, providing one-stop purchasing and sales services for our customers.

Please enter the verification code in the image below:

verification code