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Record Density DDR5 Chips 24Gbps

19.12.2021

South Korean memory chip manufacturer SK Hynix announced the successful development of DDR5 DRAM chips with an industry-leading 24Gb chip density.

SK Hynix released the first DDR5 DRAM chip with a density of 16 Gb in October 2020. And now the South Korean manufacturer is increasing the density to 24 Gb (the DDR5 standard provides for a peak density of 64 Gb).

The new memory is based on improved 1anm technology using hard ultraviolet (EUV) lithography. Manufacturer claims up to 33% higher yield and speed with 25% lower energy consumption than current products

The new chips will form the basis of future 5 and 48 GB DDR96 modules, which will first find use in data centers, and then probably get to consumer PCs.

SK Hynix has already shipped the first samples of the new memory to customers, and large-scale shipments will begin next year. In a press release, among the partners, Intel is indicated, which is preparing to release 4th generation Xeon Scalable server processors (Sapphire Rapids) with DDR5 and PCIe 5.0 - they will be based on the current Golden Cove architecture (Core 12th generation).

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Power lines interfere with bees 23.05.2023

The wires of high-voltage power lines are surrounded by electromagnetic fields, which have a noticeable effect on the state and behavior of bees. Biologists have shown that near such lines, insects experience stress and pollinate plants worse.

Special receptors allow bees to sense natural electromagnetic fields, using them for orientation and flight navigation. But people also create such fields: they surround any wire through which electricity flows, and if the currents are strong enough, the fields can have a noticeable effect on the behavior of bees. Thus, it has already been shown that near high-voltage lines these insects become aggressive and often go astray.

A new study by Chilean biologists from the University of Talca has shown that power lines prevent bees from performing their main function for nature - to pollinate flowering plants.

To begin with, scientists conducted experiments in the laboratory. One hundred honey bees (Apis mellifera) were exposed to electromagnetic fields generated by high-voltage currents of various strengths for three minutes. The researchers found that with an increase in field energy in insects, the synthesis of heat shock proteins is noticeably - up to 50 percent - increased, and this serves as an important indicator of the stress effect on cells. In addition, in such bees, the activity of genes involved in navigation and memory is reduced.

The biologists also conducted field studies in the Chilean province of Linares, comparing populations of bees living near power lines and away from them. Again, it turned out that in the presence of intense electromagnetic fields, the synthesis of heat shock proteins in insects was much higher. In addition, bees visited Eschscholzia californica flowers growing near power lines three times less often than the same plants located far from electrically conductive lines.

The authors noted that the negative effects of anthropogenic electromagnetic fields on bees are unlikely to completely disappear. Today, their sources are not only high-voltage power lines, but also cellular base stations, as well as ordinary smartphones during active data transfer. So in reality, insects are often exposed to a whole set of artificial fields at the same time, which can enhance their impact.

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