The upcoming \u00a02nm integrated circuits\u00a0 are set to make a significant mark in the industry by 2025. While users might realize that the significance of nanometers has diminished, they still symbolize a category of \u00a0semiconductors\u00a0. These measurements no longer accurately reflect the physical characteristics of transistors or the length of logic gates. Nevertheless, the swift development of chips reminds us that with each new advancement, we edge closer to the \u00a0physical limits of silicon technology\u00a0. This challenge, while daunting, is not a new one; it has been a concern for decades.<\/p>\n
<\/p>\n
Leading \u00a0integrated circuit manufacturers\u00a0 and various research groups affiliated with some of the world’s top universities have been striving for years to address this challenge. With multiple research avenues currently being explored, it’s likely that the solution will involve a combination of several approaches. Researchers are focused on different potential pathways, which could lead to a diverse technological landscape.<\/p>\n
<\/p>\n
A groundbreaking team from the \u00a0University of Pennsylvania\u00a0 has published a significant paper in Nature<\/a>, presenting the \u00a0first functional CMOS processor\u00a0 constructed using \u00a02D materials\u00a0 that are just one atom thick. The team utilized \u00a0molybdenum disulfide\u00a0 and \u00a0tungsten diselenide\u00a0 to create over 2,000 transistors capable of performing logical operations \u2014 all without a single atom of silicon.<\/p>\n <\/p>\n “We have demonstrated, for the first time, a CMOS processor built entirely with 2D materials.”<\/p>\n<\/p><\/div>\n<\/div>\n It is essential to highlight that the materials utilized retain their properties at an atomic scale, unlike silicon. \u00a0Professor Saptarshi Das\u00a0, the project’s lead, mentioned that “silicon has driven remarkable advances in electronics for decades by enabling the \u00a0continuous miniaturization of field-effect transistors (FETs)\u00a0.” However, as silicon devices shrink, their performance often starts to decline. In contrast, \u00a02D materials\u00a0 exhibit exceptional electronic properties at the atomic level, suggesting a promising future for semiconductor technology.<\/p>\n <\/p>\n “We’ve shown the first CMOS processor made entirely with 2D materials by combining \u00a0molybdenum disulfide\u00a0 and \u00a0tungsten diselenide\u00a0 transistors grown over large areas,” Das explained. While this innovation is highly promising, users are left wondering how such technology might impact their experiences if it becomes mainstream. “Our \u00a02D CMOS processor\u00a0 operates at low power supply voltages, minimizing energy consumption, and can perform simple logical operations at frequencies of up to 25 kHz,” clarified \u00a0Subir Ghosh\u00a0, another project leader. This realization represents a significant milestone.<\/p>\n <\/p>\n We are merely at the dawn of technology that extends beyond silicon. Presumably, \u00a0chips\u00a0 incorporating \u00a0molybdenum disulfide\u00a0 and \u00a0tungsten diselenide transistors\u00a0 will enable the creation of computers that are not only faster and more compact than current models but also more energy-efficient.<\/p>\n <\/p>\n