tag: Oak Ridge National Laboratory

Power/Performance Bits: Feb. 18
By Jesse Allen - 18 Feb, 2020 - Comments: 0

Cryogenic memory Researchers at Oak Ridge National Laboratory demonstrated a new cryogenic memory cell circuit design based on coupled arrays of Josephson junctions. Such a memory could help enable exascale and quantum computing. The cells are designed to operate in super cold temperatures and were tested at just 4 Kelvin above absolute zero, about minus 452 degrees Fahrenheit. At these col... » read more

Power/Performance Bits: Jan. 28
By Jesse Allen - 28 Jan, 2020 - Comments: 0

Accelerator-on-chip Researchers at Stanford University and SLAC National Accelerator Laboratory created an electron-accelerator-on-chip. While the technique is much less powerful than standard particle accelerators, it can be much smaller. It relied upon an infrared laser to deliver, in less than a hair’s width, the sort of energy boost that takes microwaves many feet. The team carved ... » read more

Power/Performance Bits: Aug. 20
By Jesse Allen - 20 Aug, 2019 - Comments: 0

Six-angstrom waveguide Engineers at the University of California San Diego, City University of New York, and Johns Hopkins University created the thinnest optical waveguide yet. At only three atoms thick, the team says the waveguide serves as a proof of concept for scaling down optical devices. The waveguide consists of a tungsten disulfide monolayer (made up of one layer of tungsten atoms ... » read more

Manufacturing Bits: Aug. 13
By Mark LaPedus - 13 Aug, 2019 - Comments: 0

Exascale supercomputers The Department of Energy’s National Nuclear Security Administration (DOE/NNSA) has signed a contract valued at $600 million with Cray to build NNSA’s first exascale supercomputer. The system, called El Capitan, is expected to be shipped in late 2022. El Capitan will be housed at Lawrence Livermore National Laboratory (LLNL), and will perform research to maintain ... » read more

Power/Performance Bits: Aug. 5
By Jesse Allen - 05 Aug, 2019 - Comments: 0

Biofuels from microorganisms Researchers at Uppsala University are working on adapting microorganisms to be capable of producing useful biofuels out of carbon dioxide and solar energy. The team is focused on a series of modified cyanobacteria that produces the alcohol butanol, said Pia Lindberg, Senior Lecturer at the Department of Chemistry Ångström Laboratory, Uppsala University. "When ... » read more

System Bits: June 25
By Jeff Dorsch - 25 Jun, 2019 - Comments: 0

Supercomputers around the world At last week’s International Supercomputing Conference in Frankfurt, Germany, the 53rd biannual list of the Top500 of the most powerful computing systems in the world was released. Broken out by countries of installation, China has 219 of the world’s 500 fastest supercomputers, compared with 116 in the United States. Ranking by percent of list flops, the ... » read more

System Bits: May 14
By Jeff Dorsch - 14 May, 2019 - Comments: 0

Faster U.S. supercomputers on the way The U.S. Department of Energy awarded a contract for more than $600 million to Cray for an exascale supercomputer to be installed at the Oak Ridge National Laboratory during 2021. Cray will provide its Shasta architecture and Slingshot interconnect for what is dubbed the Frontier supercomputer. Advanced Micro Devices will have a key role in building the... » read more

Manufacturing Bits: Jan. 8
By Mark LaPedus - 08 Jan, 2019 - Comments: 0

Atom interferometry NASA and AOSense have demonstrated a prototype quantum sensor that uses a measurement technique called atom interferometry. The technology could one day enable more accurate gravitational measurements, climate-monitoring missions in space and other applications. Originally developed in the 1980s, atom interferometry is like today’s optical interferometry. Used in sc... » read more

System Bits: Nov. 27
By Ann Mutschler - 27 Nov, 2018 - Comments: 2

Silent, lightweight aircraft powered by ionic wind Instead of propellers or turbines, MIT researchers have built and flown the first-ever aircraft with no moving parts that is powered by an “ionic wind” — a silent but mighty flow of ions that is produced aboard the plane, and that generates enough thrust to propel the plane over a sustained, steady flight. [caption id="attachment_2414... » read more

Machine Learning Moves Into Fab And Mask Shop
By Mark LaPedus - 14 Nov, 2018 - Comments: 0

Semiconductor Engineering sat down to discuss artificial intelligence (AI), machine learning, and chip and photomask manufacturing technologies with Aki Fujimura, chief executive of D2S; Jerry Chen, business and ecosystem development manager at Nvidia; Noriaki Nakayamada, senior technologist at NuFlare; and Mikael Wahlsten, director and product area manager at Mycronic. What follows are excerpt... » read more

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