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>
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Dosing system of bulk material (granulates) for expansion injection molding
19.01.2017 | TechnologieAllianz e.V.
Efficient method for Chain Multiplication of unsaturated fatty acids - synthesis of ultra long-chain compounds
18.01.2017 | TechnologieAllianz e.V.
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
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