Nano Assembler and Nano Transistors (PhD in Nano-Microelectronics)
Researcher and author: Dr. ( Afshin Rashid)
Note: When a complete nanoassembler is available, almost anything is possible, and this is the most important and greatest achievement of nanotechnology.
At the macromolecular scale, making a copy is much easier than making a machine that can copy itself, but at the molecular level this is reversed; That is, building a machine that can copy itself makes it many times easier for us than building another machine, and this is the most important application of a nano-assembler. Nano-Microelectronics is developing new methods for making nanotransistors on a small scale, measuring several tens of nanometers, which is derived from a science called nanotechnology. Unlike today's nanotransistors, which behave based on the mass motion of electrons in matter, new devices follow the phenomena of nanoscale quantum mechanics in which the discrete nature of the electron can no longer be ignored. By shrinking all the horizontal and vertical dimensions of the transistor, the electric charge density in the various regions of the nanotransistor In other words, the number of electrical charges per unit area of a nanotransistor increases. This has two negative consequences : First, by increasing the density of the electric charge, the possibility of discharging the electric charge from the insulated areas of the transistor increases, and this event causes damage to the transistor and its failure. This is similar to the discharge of additional electrical charge between the cloud and the ground in the phenomenon of lightning, which ionizes air molecules into negative and positive ions. Second , as the density of the electric charge increases, the electrons may move out of the radius of an atom and into the radius of the adjacent atom under the influence of the momentum or abduction forces that have now increased. In quantum physics, this is called tunneling. Tunneling electrons from one atom to an adjacent atom is a phenomenon in Small dimensions happen a lot between electrons. This phenomenon is the basis of some electronic components and some nanoscopes. But in nanotransistors this is not a useful phenomenon, because the tunneling of electrons from one atom to an adjacent atom may continue and cause an electric current. Although this electric current may be very small, because it is unintended and unpredictable, it acts as a leakage path for the electric current and changes the electrical behavior of the nanotransistor.
The concept of nano -assemblies is summarized in all the information and code needed to produce an inventory similar to ours . Nanoassemblers are made of nanoparticles and the first effect of reducing the particle size is to increase the surface area. Increasing the surface to volume ratio of nanoparticles causes the atoms located on the surface to have a much greater effect on the physical properties of the particles than the atoms in the particle volume. Have. This property greatly increases the reactivity of nanoparticles. The structure of nano-assemblers is one of the properties of nanoparticles in terms of surface to volume ratio of these materials. Using this property, powerful catalysts in nanometer dimensions can be produced.
Conclusion :
When a complete nanoassembler is available, almost anything is possible, and this is the most important and greatest achievement of nanotechnology.
Researcher and author: Dr. ( Afshin Rashid)
PhD in Nano-Microelectronics