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Opportunities and Challenges for Carbon Nanotube Transistors


A new technical review paper titled "Carbon nanotube transistors: Making electronics from molecules" was published by researchers at Duke University, Northwestern University, and Stanford University. “Between the opportunities in high-performance digital logic with the potential for 3D integration and the possibilities for printed and even recyclable thin-film electronics, CNT transistors ... » read more

Research Bits: May 31


Carbon nanotube transistors Researchers from the National Institute for Materials Science, National University of Science and Technology, Emanuel Institute of Biochemical Physics, Chinese Academy of Sciences, National Institute of Advanced Industrial Science and Technology, University of Tokyo, Tianjin University, and Queensland University of Technology created transistors out of carbon nanotu... » read more

Digitalizing Water Monitoring


Managing water resources has always been important, but that monitoring is becoming increasingly high-tech and much more useful. Rather than a spot check at the tap, or a crude measurement of water levels in a reservoir, chips are making it possible to monitor and measure water quantity and quality at the source, wherever it is stored, the spigot, and in the wastewater systems. As climate ch... » read more

Semiconductor nanochannels in metallic carbon nanotubes by thermomechanical chirality alteration


Abstract: "Carbon nanotubes have a helical structure wherein the chirality determines whether they are metallic or semiconducting. Using in situ transmission electron microscopy, we applied heating and mechanical strain to alter the local chirality and thereby control the electronic properties of individual single-wall carbon nanotubes. A transition trend toward a larger chiral angle region wa... » read more

New Architectures, Much Faster Chips


The chip industry is making progress in multiple physical dimensions and with multiple architectural approaches, setting the stage for huge performance increases based on more modular and heterogeneous designs, new advanced packaging options, and continued scaling of digital logic for at least a couple more process nodes. A number of these changes have been discussed in recent conferences. I... » read more

What Is DRAM’s Future?


Memory — and DRAM in particular — has moved into the spotlight as it finds itself in the critical path to greater system performance. This isn't the first time DRAM has been the center of attention involving performance. The problem is that not everything progresses at the same rate, creating serial bottlenecks in everything from processor performance to transistor design, and even the t... » read more

Inside The New Non-Volatile Memories


The search continues for new non-volatile memories (NVMs) to challenge the existing incumbents, but before any technology can be accepted, it must be proven reliable. “Everyone is searching for a universal memory,” says TongSwan Pang, Fujitsu senior marketing manager. "Different technologies have different reliability challenges, and not all of them may be able to operate in automotive g... » read more

Manufacturing Bits: Jan. 21


New high-frequency transistors The Fraunhofer Institute for Applied Solid State Physics IAF has developed a novel high-frequency transistor type—the metal oxide semiconductor HEMT or MOSHEMT. Still in R&D, Fraunhofer’s MOSHEMT has reached record frequencies of 640GHz. MOSHEMTs are designed for the 100GHz frequency ranges and above. Applications include communications, radar and sens... » read more

Power/Performance Bits: Dec. 16


Carbon nanotubes for RF Researchers at Carbonics, Inc., University of Southern California, and King Abdulaziz City for Science and Technology, funded by the Army Research Office, propose using carbon nanotubes for radio frequency applications. The team's carbon nanotube device beat traditional RF-CMOS technology, achieved speeds exceeding 100GHz. This could boost mmWave, which in turn would... » read more

Manufacturing Bits: Nov. 25


RF carbon nanotubes For years, the industry has been working on logic and memory devices based on carbon nanotubes, although these technologies remain in R&D. Now, there is a new device type using carbon nanotubes--RF. Startup Carbonics has developed an RF-based carbon nanotube technology that operates at frequencies over 100GHz. The technology exceeds the cutoff frequency of today... » read more

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