METHOD AND SYSTEM FOR MARKING AN OBJECT HAVING A SURFACE OF A CONDUCTIVE MATERIAL

摘要

The present invention describes a method for marking an object (18), the object (18) having a surface of a conductive material. The method comprises a step of applying an electric spark to the surface such that the material is at least one of partially melted and partially ablated by the electric spark, thereby forming a pattern on the object (18). Further, the present application relates to a marking system (10) for marking an object (18) using a spark generator (12) having a counter electrode (14) and a connector (16) for electrically connecting the spark generator (12) to the surface of the object (18) to be marked. Further, the present application relates to an authenticating system for authenticating or identifying an object (18) marked by the above described method for marking the object (18).

主权项

1. Method for marking an object (18), the object (18) having a surface of a conductive material, the method comprising
applying an electric spark to the surface such that the material is at least one of partially melted and partially ablated by the electric spark, thereby forming a pattern on the object, wherein the surface is exposed to a gas while the electric spark is applied to the surface, and wherein the electric spark comprises two subsequent phases, a first phase where a conductive channel is formed and a second phase where current is injected into the conductive channel for at least one of partially melting and partially ablating the material.