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Single-chip system MT6739

07.10.2017

MediaTek has announced a new single-chip system: MT6739. This solution is for budget smartphones.

The new SoC is configured with four Cortex-A53 cores up to 1,5GHz and a PowerVR GE8100 GPU up to 570MHz. The new solution supports screen resolutions up to HD+ (1440 x 720 pixels). MediaTek separately specifies that it is positioning the new SoC, including for smartphones with 18: 9 screens, of which there are more and more every month.

The platform also received an LTE Cat4 modem with Dual 4G VoLTE support and MediaTek TAS 2.0 "smart antenna" technology, which improves power efficiency and improves signal stability.

In addition, the MT6739 supports cameras up to 13MP, including dual cameras, as well as Full HD video recording at 30fps. The maximum amount of LPDDR3 RAM can be up to 3 GB. eMMC 5.1 flash is also supported. Unfortunately, the manufacturer does not indicate which process technology the new platform is designed for.

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Ultra-strong carbon nanotube nanowires 10.01.2013

American physicists have created a new type of carbon nanotubes suitable for use as a material for weaving heavy-duty and electrically conductive "threads" and have published instructions for their creation in the journal Science.

“Finally, we managed to create a fiber from nanotubes with properties that no other material has. It looks like an ordinary black cotton thread, but combines the properties of metal wires and strong carbon tubes,” said Matteo Pasquali, leader of the physicist group ( Matteo Pasquali of Rice University in Houston (USA).

Pasquali and his colleagues were able to adapt nanotubes for industrial use after a decade of experimenting with "packaging" and tying individual nanotubes into a filament. As the researchers note, since the discovery of carbon nanotubes in 1991, they were predicted to have a great future in modern industry. They have many useful properties - good electrical and thermal conductivity, high strength and mechanical stability. The very first experiments showed that nanotubes are extremely difficult to apply in practice due to their small size and difficulties in connecting and interlacing them into single fibers.

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Having received a sufficient number of threads, the scientists tested them in action - they measured their electrical and thermal conductivity, and also evaluated their mechanical strength. According to physicists, their invention exceeded their wildest expectations - the filaments retained the high strength, electrical and thermal conductivity of individual nanotubes. According to scientists, their brainchild conducts current no worse than wires made of aluminum, copper or gold, and at the same time, carbon filaments are much more flexible than metal conductors. In addition, these threads are distinguished by high thermal conductivity - they are not inferior to the best graphite threads, which were considered leaders in this field.

Pasquali and his colleagues believe that their invention will find application primarily in electronics and aviation, where carbon filaments can replace metal wires, which will facilitate and reduce the cost of the design of such devices. In addition, such threads can become the basis for new ultra-strong materials with high flexibility and thermal conductivity.

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