This Is the End of the Silicon Chip, Here’s What’s Next
Researchers have developed transistors, only a few nanometers thick, with excellent electrical properties. This will increase the density of their placement on microcircuits, which will lead to an increase in the power of computer chips..
Previously, the number of transistors on commercial chips doubled roughly every two years, but in the past few years, Moore’s Law has stopped working due to problems of further miniaturization of elements. Although the development of 2D materials technology makes it possible to solve this problem.
Previous attempts to use 2D semiconductors to create ultrathin transistors were unsuccessful because they were combined with a thick insulator layer, which prevented miniaturization and compromised electrical properties..
However, a team of scientists from the Vienna University of Technology announced the manufacture of the first prototype of a transistor consisting of a semiconductor several atoms thick and an insulator made of an ionic crystal of calcium fluoride. In this case, the correct shape of the CaF₂ layer does not violate the electric field.
Circuits of the new transistor: an insulator in red and blue, and a semiconductor on top
After examining the technical specifications of the new transistor, the team was surprised by its superior performance over all previous models. Therefore, now he will be looking for the best combination of semiconductor and insulator.
Despite the success, the researchers say it will take several more years before the technology can be applied to commercial chips. This is due to the process of making two-dimensional materials, which needs improvement. However, the solution of certain technical issues will return the relevance of Moore’s Law.
Recall that earlier international team of researchers introduced new technology production of high-quality transistors from two-dimensional materials, which can significantly reduce the cost of their production.
text: Ilya Bauer, photo: Vienna University of Technology, 2Gadget