Patent ID: 7318847

Claim:
Workpiece with at least one functional face and a layer system deposited by means of a CVD or PVD process 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 microstructure with structure depth S, wherein the three-dimensional microstructure extends from the surface of the layer system up into the workpiece, such that it is uncoated in a lower region of the microstructure, wherein at least the outermost layer of the layer system comprises at least one carbon-containing slide layer, the ratio of the layer thickness d of the layer system to the structure depth S being between 0.05 and 0.9, and the carbon-containing slide layer being at least one of an Me/C, MeC/C, a-C:H:Si:Me, SiC/C, a-C:H:Si, a-C:H/a-Si:O, or DLC slide layer, where Me is selected from the group consisting of: Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W or Fe.