Molecular-size transistors are freshly baked
Size or Moore's Law has reached the limit
The center of the indium-arsenide transistor is the phthalocyanine dye molecule, which is surrounded by 12 positively charged indium atoms.
On an indium arsenide crystal, 12 positively charged indium atoms surround a phthalocyanine dye molecule, the latest molecular-size transistor scientists have developed. According to Moore's Law, this is probably the smallest size a transistor can achieve.
The new transistor was developed by an international team of PDI solid-state electronics institutes in Germany, the Free University of Berlin, Japan's NTT Basic Research Laboratory and the US Naval Research Laboratory. This latest achievement, published in the science journal Nature and Physics, takes a big step toward quantum computing.
Each indium atom making up the transistor has a diameter of 167 picometers (0.167 nanometers), 42 times smaller than the current smallest circuit, the 7 nanometer chip IBM just introduced (7 nanometers in transistor size). Human hair is 100,000 nanometers thick, about 600,000 times the atomic size of indium; the red blood cell has a diameter of 6,000 nanometers, which is 36,000 times larger than it; and even a 2.5 nanometer wide DNA strand, which is 15 times larger than indium.
At such atomic scales, it is often difficult to reliably control the flow of electrons and the electrons jump outside the transistor, rendering the transistor ineffective. The Guardian website reported on the 21st that the research team used a scanning tunneling electron microscope to place indium atoms in precise positions and to control the electron flow through the gate. They accidentally discovered that the direction of the phthalocyanine dye molecule in the center of the transistor is determined by its charge, which means that the new transistor may not be so limited as it is with only a simple, switch-like state of the conventional transistor.
Research has shown that it is possible to create a transistor by precisely controlling the atoms to be smaller than any of the other existing quantum systems and to further investigate how to apply these transistors to computers and systems that are capable of processing orders of magnitude greater than current levels Open the door.
Moore's Law says the number of components that can be accommodated on an integrated circuit will be doubled every 18 months to 24 months and the performance will be doubled. The more transistors integrated on the chip, the more powerful it is. The latest computer chip has exceeded the 7-nanometer scale, more and more difficult to the development of smaller. Although single-molecule transistors are still far from being integrated into the chip, this new study will still help the development of the next generation of computers, quantum computers.
Sulfur Pulverizer,Sulphur Grinding Mill,Fine Sulphur Grinding,Sulphur Fine Grinder
Mianyang Liuneng Powder Equipment Co., Ltd , https://www.lnpepowder.com