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Electrical Characteristics of Ultra-Thin Oxynitride Gate Dielectric Prepared by Reoxidation of Thermal Nitride in D2O

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The electrical and reliability characteristics of ultra-thin oxynitride gate dielectric prepared by oxidation of thermal nitride in D2O ambient were investigated. Compared with H2O reoxidation, D2O reoxidation exhibit less hole trapping, larger charge-to-breakdown and significant reduction of interface state generation under the electrical stress. The improvement of electrical and reliability characteristics can be explained by the deuterium incorporation. The new oxynitride gate dielectric prepared by D2O reoxidation provides a good promise for future ultra large scaled integration (ULSI) device applications.
Title: Electrical Characteristics of Ultra-Thin Oxynitride Gate Dielectric Prepared by Reoxidation of Thermal Nitride in D2O
Description:
The electrical and reliability characteristics of ultra-thin oxynitride gate dielectric prepared by oxidation of thermal nitride in D2O ambient were investigated.
Compared with H2O reoxidation, D2O reoxidation exhibit less hole trapping, larger charge-to-breakdown and significant reduction of interface state generation under the electrical stress.
The improvement of electrical and reliability characteristics can be explained by the deuterium incorporation.
The new oxynitride gate dielectric prepared by D2O reoxidation provides a good promise for future ultra large scaled integration (ULSI) device applications.

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