Penn State researchers have built the world’s first CMOS computer entirely from two-dimensional materials, marking a leap beyond silicon.
Silicon is the kingpin when it comes to semiconductor technology that’s used in smartphones, computers, electric vehicles, and more. However, the material could soon lose its claim as the most important material for this technology in the coming years. A team of researchers at the Penn State have used 2D materials in producing a computer capable of simple operations. These 2D materials are thicker compared to silicon and also have the ability to maintain their properties at scale.
”The innovation that made it possibleThe team used metal-organic chemical vapor deposition — a fabrication process that involves vaporizing ingredients, forcing a chemical reaction and depositing the products onto a substrate — to grow large sheets of molybdenum disulfide and tungsten diselenide and fabricate over 1,000 of each type of transistor. They were able to adjust the threshold voltages of both transistor types by carefully tuning the device fabrication and post-processing steps.
Computer Computing Silicon Silicon Chips
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