文章资讯
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- 2014-10-28 New method joins gallium nitride and diamond for better thermal management
Many military radio frequency (RF) systems, like radar and communication systems, use a class of power amplifiers (PAs) called monolithic microwave integrated circuits (MIMIC). MMIC PAs using gallium nitride (GaN) transistors hold great promise for enhanced RF performance, but operational characteristics are strongly affected by thermal resistance. Much of this resistance comes at the thermal junction where the substrate material of the circuit connects to the GaN transistor. If the junction and substrate have poor thermal properties, temperature will rise and performance will decrease.
DARPA's Near Junction Thermal Transport (NJTT) effort recently demonstrated the first-ever GaN-on-diamond high electron mobility transistor (HEMT). In early tests, the GaN-on-diamond transistor displayed substantially lower junction temperatures than comparable commercially available devices. The resulting transistor has dramatically improved thermal properties, which may lead to better performance for RF systems.
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- 2014-10-28 Dual-color lasers could lead to cheap and efficient LED lighting
(Phys.org) —A new semiconductor device capable of emitting two distinct colours has been created by a group of researchers in the US, potentially opening up the possibility of using light emitting diodes (LEDs) universally for cheap and efficient lighting.
The proof-of-concept device, which has been presented today, May 3, in Semiconductor Science and Technology, takes advantage of the latest nano-scale materials and processes to emit green and red light separated by a wavelength of 97 nanometres—a significantly larger bandwidth than a traditional semiconductor.
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- 2014-10-27 Reducing ecological footprint of OPV production
- Solliance - a cross-border research initiative on thin film photovoltaics by ECN, Holst Centre, imec, TNO, TU Eindhoven and FZ Jülich - has achieved a world first with a new inkjet printing process for manufacturing environmentally friendly OPV cells that deliver benchmark efficiency. Completely compatible with existing manufacturing technology, the process replaces toxic chlorinated solvents with more benign alternatives. The result builds on a combined achievement of Solliance and French OPV manufacturer DisaSolar, and was also supported by the EU FP7 project X10D.
Organic photovoltaics (OPVs) promise cheaper solar cells that can be flexible, lightweight, semitransparent and easily integrated into construction materials. Until now, however, OPV production processes have relied on spin-coating techniques and chlorinated solvents. These solvents are highly toxic; their potential for contaminating the water in rivers and killing wildlife making them a banned substance for industrial manufacturing processes. OPVs have so far been limited to lab-scale production.
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- 2014-10-27 Making frequency-hopping radios practical
- The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately congested, while large swaths of the broadcast-television spectrum stand idle.
One solution to that problem is the 15-year-old idea of "cognitive radio," in which wireless devices would scan their environments for vacant frequencies and use these for transmissions. Different proposals for cognitive radio place different emphases on hardware and software, but the chief component of many hardware approaches is a bank of filters that can isolate any frequency in a wide band.
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- 2014-10-27 Perfectly designed microelectronics
- Microchips play an important role in industrial and household electronics. Their miniaturized circuits must not only function faultlessly but also consume as little energy as possible. Researchers are now working on making the tiny devices even more efficient.
The European Commission has defined micro- and nanoelectronics as one of five key technologies for Europe. At the moment, this segment of industry accounts for ten percent of Europe's gross domestic product (GDP). Miniaturized electronic circuits fulfill a broad range of important technical functions: they not only control our PCs, tablets, smartphones, and DVD players. Without them, the power grid would be far less efficient, airbags would not pop open, and medical devices would not be able to function. "The trend is going toward ever smaller and more complex components.
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- 2014-10-27 Touchscreen controllers feature industry's best tracking of gloved fingers
- Cypress Semiconductor Corp. today announced that its TrueTouch Gen4 touchscreen controller family now delivers multiple new advanced features, including the world's best tracking of gloved fingers on capacitive touchscreens. Gen4 enables accurate navigation of touchscreens even with thick gloves on, greatly improving convenience for users of smartphones and other portable electronics
The Gen4 family now also offers new functionality including passive stylus support to capture handwriting and signatures accurately and proximity detection that senses an object approaching the touchscreen and powers down the display before contact to avoid accidental touches. The capacitive-based proximity detection feature eliminates the need for infrared (IR) sensors and provides significant cost savings. These advanced features supplement Gen4's best-in-class water rejection and seamless operation in noisy environments.
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- 2014-10-27 Silicon-based optical modulator for ultra-fast telecommunications
- Imagine being able to download 10 high-definition movies (each of 4 GB capacity) in less than 1 second or be able to enjoy superior lag-free online gaming experience with multiple players from anywhere in the world. Researchers from A*STAR Institute of Microelectronics (IME) have designed and developed a silicon-based optical modulator for ultra fast long-distance telecommunications. The device would enable 50% faster download speed than the latest Ethernet standard. The technology can be realised with existing industry fabrication processes, paving way for affordable high speed data communications to the masses
A modulator in an optical telecommunication network transforms electrical signals into optical signals. It performs one of the most critical steps as its switching speed in the signal conversion process dictates the overall rate at which data packets are sent out. In long distance optical communications, the quality of signals transmitted takes on greater significance ― a critical performance feature defined by the extinction ratio of the modulator.
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- 2014-10-27 Circuit-characteristics analysis system capable of reflecting lithography patterns
- Researchers from the National Institute of Advanced Industrial Science and Technology (AIST), have developed a circuit-characteristics analysis system that can reflect the detailed shape of a circuit pattern (lithography pattern) transferred to a large-scale integrated circuit (LSI) board.
The developed system analyzes circuit characteristics using Technology CAD (TCAD), taking into account the detailed shape of a micro-pattern predicted by lithography simulation. By using this system, the researchers have predicted the characteristics of FinFET-based static random access memory(SRAM) circuits and determined the effects of pattern shapes unique to FinFETs on circuit characteristics.
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- 2014-10-27 Low energy consumption circuit for neural network systems with world's first ferroelectric memristor on a circuit
Panasonic Corporation today announced that it has developed a low energy consumption circuit for neural network systems, by forming the world's first ferroelectric memristor, which can record continuous analog data as resistance, on a CMOS (Complementary Metal-Oxide Semiconductor) circuit. CMOS circuits are widely used as digital circuits. Devices equipped with this technology are able to handle digital signals as analog data in one circuit for the first time. Due to the direct processing of analog data, it is expected that the power consumption of neural network circuits, which have the ability to carry out processing that replicates parts of human thought, such as the ability to make judgments based on broad trends, will decrease drastically to one tenth of the energy consumption of conventional circuits.
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- 2014-10-27 Material scientists build ferroelectric memory device based on light response
(Phys.org) —Researchers in Singapore, with assistance from materials scientist Ramamoorthy Ramesh, of the University of California, have succeeded in building a prototype ferroelectric memory device that uses light to read its polarity. In their paper published in the journal Nature Communications, the team describes how they built their device and its properties.
Current computers use two main types of memory for storing data, electronic chips or hard disks. The types of memory chips used can be broken down into three types: RAM, ROM and DRAM (flash). RAM is fast but lasts only while electricity is present. ROM can only be used once and DRAM is much slower than RAM. For that reason, scientists have been studying other ways to store data—the goal is to create a memory device that runs as fast as RAM, but works even when the electricity is turned off.
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- 2014-10-27 Imec unveils fully organic imager for X-ray applications
At this week's International Image Sensor Workshop (IISW 2013, Snowbird, Utah, June 12-16 2013), imec and Holst Centre presented a large-area fully-organic photodetector array fabricated on a flexible substrate. The imager is sensitive in the wavelength range suitable for x-ray imaging applications.
Because of their very high absorption coefficient, organic semiconductors allow extremely thin active layers (10 to 50 nm). Also, given their low processing temperature, they can be processed on foils. As a result, organic imagers can be more robust and light-weight compared to their traditional counterparts and may be used for conformal coating of randomly shaped substrates. Moreover, the wide variety of organic molecules available ensures that the properties of the active layer can be tuned to applications requiring specific wavelength ranges.
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- 2014-10-27 Organic CMOS image sensor technology using organic photoelectric conversion layer
FUJIFILM Corporation and Panasonic Corporation have developed organic CMOS image sensor technology that uses an organic photoelectric conversion layer with a photoelectric conversion property at the light receiving section of an image sensor to achieve performance beyond that of conventional image sensors. Applying this technology to the image sensors of digital cameras and other imaging devices expands its dynamic range and enhances sensitivity further to prevent highlight clipping in bright scenes and capture a dark subject with vivid colors and rich textures.
The industry has put into continuous efforts to explore image sensor technologies for increasing their number of pixels. This has dramatically improved sensor resolutions, but, in order to further boost image quality, it is necessary to expand the dynamic range, enhance sensitivity and prevent cross-talk or color mixing between pixels. Panasonic took advantage of its semiconductor device technology to boost image quality for its high-performance image sensors.
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- 2014-10-25 Distributor of EPCOS all series capacitors electronic components IC semiconductor
- TAMS SEMICONDUCTOR LIMITED sells EPCOS all series Capacitors, Filters, Inductors, Sensors, Transducers, Coils, Chokes, Integrated Circuits(ICs), electronic components(semiconductor). We are the stocking distributor of EPCOS electronic components semiconductor.
Below are some part number:
B32594C8474K008
X6966D
B39361-X6966-D100
B39361X6966D100
X6966N
B39361-X6966-N201
B39361X6966N201
X6941D
X6941N
B39440X6941N201
B39440-X6941-N201
B39431-B3760-Z810
B39431B3760Z810
B3760
433.92MHz
B39361-X6966-M100
X6966M
X6933X
B39570-X6933-X400
B39570X6933X400
X6776X - See Details
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- 2014-10-25 Powerful gallium nitride red light-emitting diodes made with europium and magnesium codoping
Europium (Eu) doped nitride semiconductors show potential for realization of novel optical devices, such as a low threshold lasers and single photon emitters, due to their sharp line and high efficiency emission.
However, not all the Eu ions in semiconductor are incorporated in optically active sites that can be excited through the GaN host. Therefore, it is important to develop methods to selectively incorporate Eu ions in higher-efficiency optical sites.
Here, Hiroto Sekiguchi and colleagues at Toyohashi University of Technology and Hamamatsu Photonics Ltd have improved the emission intensity from Eu ions by Mg co-doping and fabricated red LEDs with Eu and Mg doped active layer grown by ammonia source MBE.
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- 2014-10-25 Solliance and imec achieve 9.7% efficiency with new thin-film CZTSe solar cell
At next week's Intersolar conference in San Francisco, imomec, imec's associated lab at the Hasselt University, and Solliance, the European R&D consortium that focuses on thin-film photovoltaic solar energy (PV), will present a CZTSe (Cu2ZnSnSe4)-based solar cell with 9.7 percent efficiency (1x1cm2, AM1.5G). This promising result is an important step bringing the solar industry closer to a sustainable alternative for the highest efficiency thin-film solar cells in production, based on CIGS (Cu(In,Ga)(S,Se)2).
CZTSe is an emerging alternative solar cell absorber in thin-film solar cells, similar to CZTS (Cu2ZnSnS4). Unlike CIGS, CZTS and CZTSe do not suffer from abundancy issues. At 1.5-1.6eV for CZTS, and 0.9eV for CZTSe, their bandgaps make a combined material system ideal for a multi-junction, thin-film solar cell that rivals the efficiency of CIGS cells (about 20 percent). Imomec, imec and Solliance have defined a path towards further improving the layers and cell structures of CZTSe and CZTS absorbers aiming at developing a multi junction CZTS/CZTSe solar cell with 20 percent cell efficiency. The presented CZTSe solar cell is an important step forward to reach this goal.
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- 2014-10-25 Investigating use of 'extreme materials' in electronics
In 2006, when Tomás Palacios completed his PhD in electrical and computer engineering at the University of California at Santa Barbara, he was torn between taking a job in academia or industry.
"I wanted to make sure that the new ideas that we were generating could find a path toward society," says Palacios, the newly tenured Emmanuel E. Landsman Associate Professor of Electrical Engineering and Computer Science at MIT. "In industry, I was sure that would happen; I was not sure how it would work in academia."
"What I found when I came here," he says, "is that MIT is really an amazing place to get all these new ideas out and to collaborate with industry to make sure that the new concepts and new ideas coming out of the university environment find their place in real products and applications."
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- 2014-10-25 LT(LINEAR TECH)All Series Integrated Circuits (ICs) - TAMS SEMICONDUCTOR LIMITED
TAMS SEMICONDUCTOR LIMITED, a professional stocking distributor of electrionic components, sells LINEAR TECH(LT) all series Integrated Circuits (ICs); Clock/Timing, Data Acquisition - ADCs/DACs, Interface - Drivers, Receivers, Transceivers, Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps, Linear - Comparators, Logic - Multivibrators, PMIC - AC DC Converters, LED Drivers, Power Management, Voltage Regulators, RF/IF and RFID,Sensors, Transducers, electronic components(semiconductor).
Below are some part number:
LT0425 SOP8
LT0425CS8
LT1001CN8
LT1002CN
LT1004CS8-2.5-E2
LT1006CN8
LT1006S8
LT1007CS8
LT1008CN8/NA
LT1008IN8
LT1009IS8
LT1009S8#TR
LT1010CN8
LT1011CS8
LT1012ACS8
LT1012AIS8
LT1012DH/R
LT1012S8
LT1013ACJ8
LT1013CH
LT1013DN8
LT1013DS8
LT1014CN
LT1014DN
LT1014DS
LT1014MJ
LT1016CJ
LT1016CS8
LT1016CS8#PBF
LT1016IS8
LT1017CN8
LT1017IS8
LT1018CS8
LT1019CN8-4.5
LT1019CN8-5
LT1019CS8-5
LT1021CCN8-5
LT1021CIN8-5
LT1021DCN8-10
LT1021DCN8-5
LT1021DCS8-10
LT1021DCS8-5#TR
LT1022CN8
LT1024CN
LT1026CN8
LT1026CS8- See Details
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- 2014-10-25 The first electrically powered nanolasers capable of being operated at room temperature
(Phys.org) —Significant proof of the critical importance of long term basic research funding has been demonstrated with the first convincing operation of a room temperature, continuous wave nanolaser powered by electricity.
Funded by the Air Force Office of Scientific Research (AFOSR) and the Defense Advanced Research projects Agency (DARPA), Dr. Cun-Zheng Ning and his team at Arizona State University accomplished something that may very well result in a key solution to keeping Moore's Law on track.
Moore's Law is the prediction that, over the long term, the number of transistorsembedded on integrated circuits would double about every two years. Shrinking the size of lasers is crucial to integrating photonic withelectronic components as they become not only smaller, but faster. By placing more lasers into the same space, far greater processing speeds are attained—which makes possible the next generation of computers.
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- 2014-10-25 Enhanced wireless technology for body implants and sensors
Body implants such as pacemakers and hearing aids have been used to counter organ dysfunction for decades. The WISERBAN project is making a giant leap in their development: aiming to provide smarter communications among such devices, with reduced size and lower energy consumption.
In the near future, people affected by health issues as varied as Alzheimer, diabetes, hearing loss, heart failure or even missing limbs could all have something in common: a smart, efficient, in-body or on-body device that makes their daily life easier and more enjoyable. To this end, the development of tiny and ultra-low-power wireless communications is key. It allows these devices to communicate changes in conditions and adjust treatments accordingly. Only limited autonomy andwireless connectivity can be achieved using today's wireless solutions because of their size and power consumption.- See Details
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- 2014-10-25 Sell FREESCALE-MOTOROLA all series Integrated Circuits (ICs) - TAMS SEMICONDUCTOR LIMITED
TAMS SEMICONDUCTOR LIMITED sells FREESCALE-MOTOROLA all series Integrated Circuits (ICs), Clock/Timing, Embedded - DSP (Digital Signal Processors), Embedded - Microcontroller, Microprocessor, Interface - Drivers, Receivers, Transceivers, PMIC - MOSFET, Bridge Drivers, PMIC - Voltage Regulators, RF/IF and RFID, electronic components(semiconductor). We are a stocking distributor of FREESCALE-MOTOROLA electronic components semiconductor.
Below are some part numbers:
ZC99288CFNR2
ZC444337CFN4R2
ZC441269CPU
ZC439952CFN4
ZC433168CFN
ZC43208/VFNR2
ZC428277CFN4
ZC422386CFN
ZC421229CDWR2
ZC421209CDWR2
ZC415134VFNR2
ZC408685CFN
ZC404805VFN
ZC401161FN
ZC247P
XT7328110F
XT7328110E
XT7328110D
XT73281100
XT7315240A
XT73152400
XT7315220G
XT7315210A
XT7043310A
XSPC850DSLZT50C
XRFIC1808DMR2
XRFIC08K06R2
XRF9085
XRF9045
XRF7148
XRF6995S
XRF6525-60- See Details
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- 2014-10-25 Panasonic starts first mass production of ReRAM mounted microcomputers
Panasonic Corporation today announced that it will start the world's first mass-production of microcomputers with mounted ReRAM, a type of non-volatile memory, in August 2013. Through utilizing microcomputers with mounted ReRAM, it will be possible to achieve high-speed rewriting and longer operational times in battery-powered equipment, such as portable devices and security devices etc., reducing the amount of maintenance required. The first of these mass-produced products is the low power consumption 8-bit microcomputer, MN101LR series.
In recent years, battery-driven equipment, such as portable healthcare products and security equipment for disaster and crime prevention, is becoming more common. There is a growing requirement to decrease the maintenance time for such equipment by reducing the frequency of battery replacements through extending the battery operation time. In addition, due to the high performance of the equipment, there is a need to read and write information in memory at high speed. In order to respond to such requirements, the company has introduced a microcomputer series with mounted ReRAM, featuring low power consumption and high-speed rewriting.- See Details
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- 2014-10-25 New capacitors to improve electric vehicles
Scientists from the National Physical Laboratory (NPL) have developed a new lead-free, high temperature ceramic capacitor that could improve the efficiency and reliability of electric and hybrid vehicles.
Hybrid and electric vehicles rely on high efficiency power conversion and management, with automotive power electronics representing an emerging £40 billion global market.
The power electronics found in vehicles today require cooling because of limitations in the temperature rating of components such as capacitors, which are used to store electrical energy. This is a disadvantage as the extra cooling systems add weight to the vehicles, reducing efficiency and reliability.
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- 2014-10-24 EUV machines to swing into commercial action in 2015
(Phys.org) —ASML develops technology for high-tech lithography machines for the semiconductor industry. The company, based in The Netherlands, manufactures equipment that is used to transfer circuit patterns onto wafers. For them and their customers, EUV, or extreme ultraviolet, is a significant term that comes down to producing wafers in a better way. The chip industry has long hoped to use the short-wavelength light to make circuits that are cheaper and denser. The company, according to IEEE Spectrum's detailed report, has announced its work with extreme ultraviolet and related goals, and that its EUV machines will by 2015 be bright enough for commercial production.
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- 2014-10-24 Researchers speed up transistors by embedding tunneling field-effect transistor
(Phys.org) —Researchers at Fudan University in China have discovered a way to speed up traditional computer transistors by embedding tunneling field-effect transistors (TFETs) in them. In their paper published in the journal Science, the team describes how embedding TFETs in such transistors allows for them to be run with less power, which in turn causes them to run faster.
Most modern computers are run with either metal-oxide-semiconductor field-effecttransistors (MOSFETs) or a variation of them called floating-gate (FG) MOSFETs. Such transistors are now reaching their physical limit as far as how thin they can be—just a fewatoms thick. For that reason, researchers have been looking for other ways to get more bang for their buck. In this new effort, the researchers turned to TFETs, which use quantum tunneling to move electrons through very thin material.
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- 2014-10-24 Breakthrough in memory technologies could bring faster computing, smaller memory device
Memory devices like disk drives, flash drives and RAM play an important role in our lives. They are an essential component of our computers, phones, electronic appliances and cars. Yet current memory devices have significant drawbacks: dynamic RAM memory has to be refreshed periodically, static RAM data is lost when the power is off, flash memory lacks speed, and all existing memory technologies are challenged when it comes to miniaturization.
Increasingly, memory devices are a bottleneck limiting performance. In order to achieve a substantial improvement in computation speed, scientists are racing to develop smaller and denser memory devices that operate with high speed and low power consumption.
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- 2014-10-24 Advancing resistive memory to improve portable electronics
A team at the University of California, Riverside Bourns College of Engineering has developed a novel way to build what many see as the next generation memory storage devices for portable electronic devices including smart phones, tablets, laptops and digital cameras.
The device is based on the principles of resistive memory, which can be used to create memory cells that are smaller, operate at a higher speed and offer more storage capacitythan flash memory cells, the current industry standard. Terabytes, not gigbytes, will be the norm with resistive memory.
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- 2014-10-24 Intel developer event to discuss 1.6 Tbit/s MXC interconnect breakthrough
(Phys.org) —The word is out that Intel will present an entirely new optical interconnect technology for servers at the Intel Developer Forum in San Francisco next month. The MXC interconnect is capable of a peak transfer rate of 1.6 terabits per second. In advancing notes of what's on the agenda at the upcoming developer forum, Intel posted a brief description of its MXC presentation scheduled for September 12. Once the posting went up, it did not take long for tech sites to see it and catch the significance. This is something big.
MXC is the result of a two-year collaboration between Intel and Corning Cable Systems. Intel's strength in the work has been its expertise in silicon photonics and Corning worked on the new fiber technology called Corning ClearCurve LW.
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- 2014-10-24 Large Stock of ALTERA all series (FPGA, CPLD, ASIC) - TAMS SEMICONDUCTOR LIMITED
TAMS SEMICONDUCTOR LIMITED, a professional stocking distributor of electronic components have a large stock of ALTERA all series (FPGA, CPLD, ASIC).
If you have demands of ALTERA parts, please don't hesitate to email us by sales(at)tams-semiconductor.com or sales(at)tamssemi.com . Our staff will deal with your inquiry in time.
Below is some part numbers:
30LV0128-PFTN
AC101LKQT
AC104LA1KQM
AC104-QF
AC108RU-PB
AC205KQM
AC524A1KQM
AC526A1KQM
AIC4100
AL8201-1B56
AL8600-2B80
AL8688-2A80
AT22V10-15JC
ATCL-M360M0G
ATCP-S110PW
CLIP100QF012
CLIP132QF032
DPLD610-25
EMP3064ATC44-10
EP10K30RC240-4
EP1800JC
EP1810JC
EP1810JC-35
EP1810JC-45
EP1810JI-45
EP1810JM883B- See Details
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- 2014-10-24 Tunnel FET having a new architecture with potential for substantial improvement in performance
- Researchers from the National Institute of Advanced Industrial Science and Technology (AIST) have demonstrated the operation of a synthetic electric field tunnel field-effect transistor with a new architecture.
The tunnel field-effect transistor (tunnel FET) is a transistor that is based on electron tunneling and that, in principle, can switch on and off at lower voltages than the operation voltage of the metal oxide semiconductor field effect transistor (MOSFET). Its use therefore is expected to reduce the power consumption of electronic devices. However, the fact that the current through the tunnel FET is smaller than the current through the MOSFET has been an issue in practical application of the tunnel FET. - See Details
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- 2014-10-24 Sell INFINEON all series (in stock), TAMS SEMICONDUCTOR LIMITED - distributor of INFINEON components
- We (TAMS SEMICONDUCTOR LIMITED) a stocking distributor of INFINEON electronic components, sell INFINEON all series electronic components (Rectifier, MOSFET, IGBT, Transistor, Diodes, Sensor IC, Microcontroller and so on).
Below are some part number of INFINEON, please send us an email if you have any demands.
BCP49
BSC037N025S
BSP300
BTS3118
BTS442E2
ICE2A0565Z
IL300-H
IPD039N03LG
IPD03N03LA
IPD350N06L
IPD350N06LG
IPD400N06NG
LH1550AAB1TR
FW82371AB(SL23P)
BSC48N025S
BTS716G
ICE1PCS02G
BFP450 E6327
BG3130 E6327
HYB25DC128169EE-6
ICE2B0565
HYB18L256160BF-7.5
9396627
9398137
9398952
21002559
06N03LA
08N80C3
09N05
15N03L
15N60C3
4253A
91564L16
ADM5120P
ADM5120P-DQFP
ADM6996FCX-AC-T-1-AC - See Details