An atomic-layer-deposition process for forming a patterned thin film comprising providing a substrate, applying a deposition inhibitor material to the substrate, wherein the deposition inhibitor material is an organosiloxane compound; and patterning the deposition inhibitor material either after step (b) or simultaneously with applying the deposition inhibitor material to provide selected areas of the substrate effectively not having the deposition inhibitor material. The thin film is substantially deposited only in the selected areas of the substrate not having the deposition inhibitor material.