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METHOD FOR GLOBALLY ADJUSTING SPACER CRITICAL DIMENSION USING PHOTO-ACTIVE SELF-ASSEMBLED MONOLAYER
METHOD FOR GLOBALLY ADJUSTING SPACER CRITICAL DIMENSION USING PHOTO-ACTIVE SELF-ASSEMBLED MONOLAYER
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机译:利用光敏自组装单层膜在全球范围内调整间隔临界尺寸的方法
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摘要
A method of processing a substrate includes: providing structures on a surface of a substrate; depositing a self-assembled monolayer (SAM) over the structures and the substrate, the SAM being reactive to a predetermined wavelength of radiation; determining a first pattern of radiation exposure, the first pattern of radiation exposure having a spatially variable radiation intensity across the surface of the substrate and the structures; exposing the SAM to radiation according to the first pattern of radiation exposure, the SAM being configured to react with the radiation; developing the SAM with a predetermined removal fluid to remove portions of the SAM that are not protected from the predetermined fluid; and depositing a spacer material on the substrate and the structures, the spacer material being deposited at varying thicknesses based on an amount of the SAM remaining on the surface of the substrate and the structures.
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