Patent ID: 11912918
Assignee: LUMILEDS, LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  F  H | IPC C  F  H

Claim 8:
9. The method according to claim 1, further comprising:
providing a further ALD coating layer onto the main sol-gel coating by application of a further atomic layer deposition process, in the further atomic layer deposition process a further metal oxide precursor is selected from a group of metal oxides comprising Al, Zn, Hf, Ta, Zr, Ti, Sn, Nb, Y, Ga, and V, the further ALD coating layer has a further ALD coating layer thickness (d4) in the range of 10-50 nm, and the further ALD coating layer comprises two or more layers having different chemical compositions, one or more of the layers comprise metal oxides selected from a group of Al2O3, TiO2, ZrO2, HfO2, SnO2, ZnO and Ta2O5, and the two or more layers have a chemical composition differing from the chemical composition of the main sol-gel coating layer.