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 language | English |
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Pages | 363-371 |
Number of pages | 9 |
State | Published - Oct 2003 |
Event | Physics 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 2003 → 16 Oct 2003 |
Conference
Conference | Physics 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 |
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Country/Territory | United States |
City | Orlando, FL. |
Period | 12/10/03 → 16/10/03 |