Researchers fabricate microprocessors with two-dimensional materials similar to graphene, some believe that such magical elastic conductive materials can revolutionize batteries, sensors, and chip designs. The processor has only 115 transistors and it is not surprising from a test standpoint, but researchers at the University of Vienna said in a report that this is the first step, marking the first move toward 2D semiconductor microprocessors step.
One advantage of 2D material is that it is very flexible, which means it can easily fit into wearable devices, networked sensors, and not easily damaged. For example, if we drop the phone, the phone will bend, not broken.
In fact, the current semiconductor and screen has been quite thin, but they rely on the material's three-dimensional physical properties. If you bend the silicon crystal, it will crack. Vienna University of Technology uses 2D materials such as graphene or transition metal chalcogenides, which are truly two-dimensional materials that are made of crystals that have only one layer of atoms or molecules of thickness and are therefore bendable.
Transition metal chalcogenides are a mixture of transition metals such as molybdenum, tungsten and chalcogen. Like graphene, the transition metal chalcogenide forms a layer, but unlike graphene, compounds that behave like metals and are semiconductors are good news for flexible chip designers.
Researchers use molybdenum disulfide to make microprocessors. They placed two layers on a silicon substrate, the thickness of which was about the same as that of the molecule, a circuit design was engraved on it, and then separated by an alumina layer. The report said: "The substrate is only available as a media carrier and has no other functions, so it can be replaced with glass or other materials, including flexible substrates."
The recent introduction of Intel chips using 64-bit technology, it can understand hundreds of different instructions, depending on how much you calculate, it includes hundreds of millions of transistors.
The microprocessor developed by the University of Vienna is capable of processing only 1 bit of data at a time and understands only 4 instructions (NOP, LDA, AND, OR). The circuit is 2 microns wide and 100 times wider than the latest Intel and ARM processors Times
The researchers said that if you continue to develop, you can make the microprocessor more complex, while reducing size. At the time of manufacture, researchers deliberately opted for large dimensions so molybdenum disulfide films were not prone to perforation, rupture or contamination, and would be easier with light microscopy.
"We do not think there is any obstacle to turning 1 bit into multi-bit data." The only challenge is to reduce the transient resistance, which is a challenge with sub-micron technology.
Not that manufacturing is easy. Although manufacturing subunits have a high yield, about 80% of the arithmetic and logic units are up and running, but only a small fraction of the finished device is in service due to its fault-free, fault-tolerant design.
In order to solve the problem of yield, business microprocessor manufacturers introduced the chip design module, with different speed test. The higher the operating speed of the chip, the higher the cost. The wrong sub-component can be permanently disabled. The chip can also be sold, but the performance is not so strong.
Intel took the entire 46-year history of the 4004 chip (four CPUs, 46 instructions) to the latest x86 Kaby Lake, and the industry continues to learn micromanufacturing technology along the way, compared with the advances made in flexible semiconductors Still fast.
Aluminum Roof,Aluminum Corrugated Roof,Stucco Embossed Aluminum Roof,Aluminum Sheet For Roofing
Jinan ZhongFu Aluminum Company Limited , https://www.zfaluminum.com