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IMAGE: a, Working principle of the demonstrated method. The samples-under-test were multilayer semiconductor devices with alternating layers of oxide (SiO2) and nitride (Si3N4) on a silicon substrate. To obtain the spectroscopic. view more
Credit: by Hyunsoo Kwak, Sungyoon Ryu, Suil Cho, Junmo Kim, Yusin Yang, and Jungwon Kim
With the recent explosive demand for data storage, ranging from data centers to various smart and connected devices, the need for higher-capacity and more compact memory devices is constantly increasing. As a result, semiconductor devices are now moving from 2D to 3D. The 3D-NAND flash memory is the most commercially successful 3D semiconductor device today, and its demand for supporting our data-driven world is now growing exponentially.
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IMAGE: A standard radio control-based drone, upgraded with necessary hardware and software and equipped with a simple 2D camera for the detection of a symbolized landing pad view more
Credit: Malik Demirhan and Chinthaka Premachandra in Development of an Automated Camera-Based Drone Landing System, published in IEEE Access by IEEE Xplore, under Creative Commons license CC BY-NC-ND 4.0.
Initially earmarked for covert military operations, unmanned aerial vehicles (UAVs) or drones have since gained tremendous popularity, which has broadened the scope of their use. In fact, remote pilot drones have been largely replaced by autonomous drones for applications in various fields. One such application is their usage in rescue missions following a natural or man-made disaster. However, this often requires the drones to be able to land safely on uneven terrain which can be very difficult to execute.
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IMAGE: Fig.2 Electron dynamics around a misoriented molecular defect. (a) STM image and snapshots obtained over an area including the defect indicated by the white arrow. Snapshots clearly show that electrons. view more
Credit: University of Tsukuba
Tsukuba, Japan - A team of researchers from the Faculty of Pure and Applied Sciences at the University of Tsukuba filmed the ultrafast motion of electrons with sub-nanoscale spatial resolution. This work provides a powerful tool for studying the operation of semiconductor devices, which can lead to more efficient electronic devices.
The ability to construct ever smaller and faster smartphones and computer chips depends on the ability of semiconductor manufacturers to understand how the electrons that carry information are affected by defects. However, these motions occur on the scale of trillionths of a second, and they can only be seen with a microscope that can image individual atoms. It may seem like an imposs