Workpiece with at least one functional face and a layer system deposited on at least a portion of the functional face as well as a structure pattern, which encompasses at least a portion of the layer system and which is comprised of at least one three dimensional micro structure (5) with structure depth S, characterized in that the deposited layer system is deposited with PVD, CVD or combined PCD/CVD processes, and the three dimensional micro structure (5) extends from the surface of the layer system (4) up into the workpiece, such that the latter is uncoated in a lower region of the micro structure (5).

 
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