Patent ID: 7674712

Claim:
A method of patterning a substrate, comprising the sequential steps of: a) providing a pre-formed first masking film and then physically locating the pre-formed first masking film over the substrate; b) removing one or more first opening portions in first locations in the located pre-formed first masking film forming one or more first masking portions and one or more first openings in the located pre-formed first masking film; c) depositing first materials over the substrate through the first openings in the first locations to form first patterned areas; d) subsequent to the deposition of the first materials, providing a pre-formed second masking film and then physically locating the pre-formed second masking film over the substrate and located pre-formed first masking portions, wherein the pre-formed second masking film is not formed inside the first openings; e) removing one or more second opening portions in second locations, different from the first locations, in both the located pre-formed second masking film and the first masking portions to form one or more second masking portions and one or more second openings; f) depositing second materials over the substrate through the second openings in the second locations to form second patterned areas; and g) wherein an adhesive layer is provided between the pre-formed second masking film and the first masking portions, and then adhering the pre-formed second masking film to the first masking portions; h) picking up and removing the first and second masking portions after the second materials are deposited.