Multilayer dielectric structures with graded composition for nano-scale semiconductor devices

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United States of America Patent

PATENT NO 9431235
SERIAL NO

14695705

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Multilayer dielectric structures are provided with graded composition. For example, a multilayer dielectric structure includes a stack of dielectric films, wherein the dielectric films include at least a first SiCNO (silicon carbon nitride oxide) film and a second SiCNO film. The first SiCNO film has a first composition profile of C, N, and O atoms. The second SiCNO film has a second composition profile of C, N, and O atoms, which is different from the first composition profile of C, N, and O atoms. The composition profiles of C, N and/or O atoms of the constituent dielectric films of the multilayer dielectric structure are customized to enhance or otherwise optimize one or more electrical and/or physical properties of the multilayer dielectric structure.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nguyen, Son V Schenectady, US 167 8068
Priyadarshini, Deepika Guilderland, US 63 908

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