Patent ID: 9659360
Date: 2017-05-23
CPC Classifications: A44C,C23C,G01N,G06K,G06T,H01L

Claim:
1. A method of identifying an original object in a forgery-proof way, the original object comprising a surface essentially made of a first substance, the method comprising: selecting a second substance from the group of substances not soluble in the first substance; depositing atoms of the second substance at the surface, subjecting the surface to a beam of energized atoms providing movability to the atoms of the second substance along the surface for a sufficient period of time to allows for a nucleation of a phase separation of a phase in which the atoms of the second substance are concentrated from the first substance in at least one defined area of the surface; after finishing the steps of depositing and subjecting, taking at least one image of a surface pattern originating from the nucleation of the phase separation in the at least one defined area of the surface according to at least one defined imaging procedure; storing the at least one image of the surface pattern taken according to the at least one defined imaging procedure as an identifier for the original object; taking at least one comparison image of a surface pattern in the at least one defined surface area of an object supposed to be the original object according to the at least one defined imaging procedure; comparing the comparison image to the identifier for the original object; and confirming the object as being the original object, if the surface pattern imaged in the identifier for the original object is identical to the surface pattern imaged in the comparison image.