New sensor and IC building technique developed in Russia
A Russian research team has come up with a new method enabling fast and inexpensive design of very small sensors and ICs by using a mechanism of laser application of structures to glass with a resolution of less than 100 nanometers, announced the Moscow Institute of Physics and Technology (MIPT), one of the project participants.
The scientists used a femtosecond laser to apply structures to the surface of a transparent material, in this case glass. A beam of light was used to create a sort of trap in liquid where glass microspheres were placed. The device can be moved around to focus the laser on certain parts of the glass. When impacted by a laser beam and heated, pits are produced in the laser-affected zones which are then subject to etching.
To demonstrate their technology the researchers wrote the abbreviation of the Institute of Chemical Physics (ICP), another project participant, on the glass surface.
The project was described in more detail in ACS Applied Materials & Interfaces, a scientific journal.
The new method could be used in developing super-precise circuits operating with liquid, said Alexander Shakhov, a postgraduate in MIPT’s applied physics.