Electrical enhancement: <span style='color:red'>Engineers</span> speed up electrons in semiconductors
Trade news

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：1342 Continue reading>>
Apple hires engineers from Dialog
Trade news

Apple hires engineers from Dialog

Apple has struck a deal with Dialog Semiconductor which will see it buying a portion of the company and hiring 300 of its computer chip engineers.Described by Dialog as an asset transfer and licensing deal, the $300m agreement will see some of the Reading-based company's patents and facilities transferred to Apple. In terms of headcount it represents one of the biggest takeovers made by Apple, to date.Apple has long used Dialog's products to monitor and control power consumption in its iPhones and iPads and the two have had a relationship that stretches back to the very first iPhones.Commenting, the Apple's hardware technologies chief, Johny Srouji, said, "Dialog has deep expertise in chip development and we are thrilled to have this talented group of engineers who have long supported our products now working directly for Apple.”The deal will affect Dialog staff in Swindon, Italy and Germany.At the end of last year, rumours had emerged that Apple was looking to phase out use of Dialog's components, but it has now revealed that it has pre-paid Dialog a further $300m to secure products from it over the next three years.Dialog said it expected the deal would be completed within the first six months of 2019 and post the deal the company said that it would be focusing on IoT as a provider of custom and configurable mixed-signal integrated circuit chips.
Key word：
Release time：2018-10-12 00:00 reading：1359 Continue reading>>
<span style='color:red'>Engineers</span> Charged in Tech Theft Plot
Trade news

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.
Key word：
Release time：2017-12-13 00:00 reading：1198 Continue reading>>

Turn to

/ 1

Popular categories
Semiconductors Circuit Protection Electromechanical Embedded Solutions Connectors, Interconnects Sensors, Transducers Optoelectronics Development Kits Test and Measurement Power Fans, Thermal Management Boxes, Enclosures, Racks Cables, Wires Passive Components Others
  • Week of hot material
  • Material in short supply seckilling
model brand Quote
BD71847AMWV-E2 ROHM Semiconductor
RB751G-40T2R ROHM Semiconductor
TL431ACLPR Texas Instruments
MC33074DR2G onsemi
CDZVT2R20B ROHM Semiconductor
model brand To snap up
IPZ40N04S5L4R8ATMA1 Infineon Technologies
BP3621 ROHM Semiconductor
BU33JA2MNVX-CTL ROHM Semiconductor
STM32F429IGT6 STMicroelectronics
ESR03EZPJ151 ROHM Semiconductor
TPS63050YFFR Texas Instruments
Hot labels
ROHM
IC
Averlogic
Intel
Samsung
IoT
AI
Sensor
Chip
Original authorized brand
More Licensed Brands>>
Information leaderboard
  • Week of ranking
  • Month ranking

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