The most important factors for computer storage are: read/write speeds, storage density, endurance, reliability, and cost. DRAMs are short-term memories with high speed but the data must be refreshed over 100 times per second to maintain its memory. Flash memory can store data for years without refreshing, but writes information about 1000 times slower than DRAM.</p> <p><!--break--></p> <p style="margin-bottom: 0.0001pt;" class="MsoNormal"><strong><br> Technology</strong><br> The invention is a semiconductor nanostructure based non-volatile memory cell that can provide the best of both DRAM and flash memory: long term storage with write speeds nearly as fast as DRAM. One difference from normal flash memory is varying the barrier height by changing the bias on the depletion region, enabling either retention or insertion of charge into the QD. A further difference is growing the QDs in the depletion region of a p-n junction, so that holes are stored in the QDs. Charge removal is achieved by using tunneling. The read mechanism is similar to that of flash memory.<br>
firstname.lastname@example.org | TechnologieAllianz e.V.
New Lithium Salts of Pentafluorophenylamide Anions as Electrolytes in Lithium Ionic Batteries
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University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
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