Process for lowering adhesion layer thickness and improving damage resistance for thin ultra low-k dielectric film

作者: Mahendra Chhabra , Kang Sub Yim , Alexandros T. Demos

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摘要: An improved method for depositing an ultra low dielectric constant film stack is provided. Embodiments of the invention minimize k (dielectric constant) impact from initial stages by reducing a thickness oxide adhesion layer in stack, thereby lowering non-uniformity to less than 2%. The process deposits and bulk at lower deposition rate plasma density combination with higher total flow rate, resulting better packing/ordering co-deposited species during which causes mechanical strength porosity.

参考文章(4)
Juan Carlos Rocha-Alvarez, Nagarajan Rajagopalan, Dustin W. Ho, Alexandros T. Demos, Visweswaren Sivaramakrishnan, Kelvin Chan, Method of improving initiation layer for low-k dielectric film by digital liquid flow meter ,(2008)
Christopher Dennis Bencher, Ping Xu, Bi-layer capping of low-k dielectric films ,(2007)
Nagarajan Rajagopalan, Sang In Yi, Kang Sub Yim, Vu Ngoc Tran Nguyen, Sang H. Ahn, Yi Zheng, Kelvin Chan, Alexandros T. Demos, Josephine Ju-Hwei Chang Liu, Method to reduce gas-phase reactions in a PECVD process with silicon and organic precursors to deposit defect-free initial layers ,(2006)