Polycrystallization effects on the nanoscale electrical properties of high-k dielectrics

<p>Abstract</p> <p>In this study, atomic force microscopy-related techniques have been used to investigate, at the nanoscale, how the polycrystallization of an Al<sub>2</sub>O<sub>3</sub>-based gate stack, after a thermal annealing process, affects the varia...

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Bibliographic Details
Main Authors: Lanza Mario, Iglesias Vanessa, Porti Marc, Nafria Montse, Aymerich Xavier
Format: Article
Language:English
Published: SpringerOpen 2011-01-01
Series:Nanoscale Research Letters
Online Access:http://www.nanoscalereslett.com/content/6/1/108
Description
Summary:<p>Abstract</p> <p>In this study, atomic force microscopy-related techniques have been used to investigate, at the nanoscale, how the polycrystallization of an Al<sub>2</sub>O<sub>3</sub>-based gate stack, after a thermal annealing process, affects the variability of its electrical properties. The impact of an electrical stress on the electrical conduction and the charge trapping of amorphous and polycrystalline Al<sub>2</sub>O<sub>3 </sub>layers have been also analyzed.</p>
ISSN:1931-7573
1556-276X