High hole mobility of Al2O3 MOSFETSs on dislocation free Ge-on-Insulator wafers

Albert Chin*, D. S. Yu, C. H. Wu, C. H. Huang, W. J. Chen

*Corresponding author for this work

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    The much degraded mobility, high-κ dielectric crystallization, and EOT reduction after processing are the primary limitations of high-κ gate dielectric MOSFETs. We have fabricated the high-κ Al2O 3 MOSFET on Geon-Insulator to enhance the hole mobility. The measured hole mobility with 1.7 nm EOT is 73 cm2/Vs at Eeff of 1 MV/cm, which is 2.5 times and 1.3 times higher than and Al2O 3/Si control devices and SiO2/Si universal mobility, respectively. In additional to good dielectric reliability, the low temperature process (≤500°C) can also avoid high-κ dielectric crystallization and EOT reduction by O2 or moisture penetration through high-κ dielectric.

    Original languageEnglish
    Pages363-371
    Number of pages9
    StatePublished - Oct 2003
    EventPhysics and Technology of High-k Gate Dielectrics II - Proceedings of the Intenational Symposium on High Dielectric Constant Materials: Materials Science, Processing, Reliability, and Manufacturing Issues - Orlando, FL., United States
    Duration: 12 Oct 200316 Oct 2003

    Conference

    ConferencePhysics and Technology of High-k Gate Dielectrics II - Proceedings of the Intenational Symposium on High Dielectric Constant Materials: Materials Science, Processing, Reliability, and Manufacturing Issues
    Country/TerritoryUnited States
    CityOrlando, FL.
    Period12/10/0316/10/03

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