Invention Grant
US07691275B2 Use of step and flash imprint lithography for direct imprinting of dielectric materials for dual damascene processing 失效
使用步进和闪光压印光刻技术直接刻印用于双镶嵌加工的介质材料

Use of step and flash imprint lithography for direct imprinting of dielectric materials for dual damascene processing
Abstract:
In some embodiments, the present invention is directed to methods that involve the combination of step-and-flash imprint lithography (SFIL) with a multi-tier template to simultaneously pattern multiple levels of, for example, an integrated circuit device. In such embodiments, the imprinted material generally does not serve or act as a simple etch mask or photoresist, but rather serves as the insulation between levels and lines, i.e., as a functional dielectric material. After imprinting and a multiple step curing process, the imprinted pattern is filled with metal, as in dual damascene processing. Typically, the two printed levels will comprise a “via level,” which is used to make electrical contact with the previously patterned under-level, and a “wiring level.” The present invention provides for the direct patterning of functional materials, which represents a significant departure from the traditional approach to microelectronics manufacturing.
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