Invention Grant
US09581900B2 Self aligned patterning with multiple resist layers 有权
具有多个抗蚀剂层的自对准图案化

Self aligned patterning with multiple resist layers
Abstract:
A method for using self aligned multiple patterning with multiple resist layers includes forming a first patterned resist layer onto a substrate, forming a spacer layer on top of the first patterned resist layer such that spacer forms on side walls of features of the first resist layer, and forming a second patterned resist layer over the spacer layer and depositing a masking layer. The method further includes performing a planarizing process to expose the first patterned resist layer, removing the first resist layer, removing the second resist layer, and exposing the substrate.
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