GAS-DYNAMIC METHOD OF CREATION IDENTIFICATION MARK ON DIELECTRIC AND METAL Russian patent published in 2018 - IPC H01L23/00 

FIELD: information technology.

SUBSTANCE: invention relates to the field of information technology and is intended to create identification marks obtained with the help of stochastic processes, more precisely with the help of turbulent gas-dynamic flows. A gas-dynamic method for creating an identification mark 1 on a dielectric and a metal is provided by first applying an information grid 2 thereon, embezzling the numeral code 3 and airflow it with a high-speed gas flow containing the particles 4, with the surface of the identification mark 1 is done in two stages, in the first stage, airflow with a polydisperse powder 5 out of the metal is made, the surface of the identification mark 1 is scanned and is added to a database, and in the second stage, an airflow with non-metallic polydisperse powder 8 is made, followed by scanning and adding to the database.

EFFECT: technical result is to make it possible, without the use of high voltages characteristic of the electric discharge identification, to increase the safety when creating of identification marks on metal and soft metals.

4 cl, 1 dwg