Highly manufacturable Cu/low-k dual damascene process integration for 65nm technology node

Autor: K.-W. Lee, Kang-Wook Park, Won Ji Park, Young-Jin Wee, S. W. Nam, H. K. Kang, Kang-Deog Suh, Young-Joon Moon, I.G. Kim, Jae-Chul Kim, Seungmoo Lee, Hyun-Eok Shin, J.W. Hwang
Rok vydání: 2004
Předmět:
Zdroj: Proceedings of the IEEE 2004 International Interconnect Technology Conference (IEEE Cat. No.04TH8729).
DOI: 10.1109/iitc.2004.1345683
Popis: A manufacturable Cu/low-k multilevel interconnects have been integrated using HSQ-via-fill dual damascene process for 65nm node as stated in K.-W. Lee et al. (2003). By introducing non-porous type SiOC film (k=2.7) without trench etch stopper and capping oxide, we obtained the effective k (keff) less than 3.0 for 65nm design rule. Simple and reliable process was achieved by improved unit process technologies such as damage-free capping oxide, abrasive free low-k direct polishing, advanced ionized PVD (AiPVD) barrier metal and bi-layer dielectric barriers, etc. according to K.C. Park et al. (2003).
Databáze: OpenAIRE