IEEE.org| IEEE Xplore Digital Library| IEEE Standards| IEEE Spectrum| More Sites

Cart (Loading....) | Create Account | 

Close category search window
Author Searchbeta |  Advanced Search  |  Preferences |  Search Tips  |  More Search Options  
 
Browse Conference Publications > Microelectronics and Electron ... Help

EOT, Workfunction, and Vfb Roll-Off in HfO2/Metal Gate Stacks

Full Text Sign-In or Purchase

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing! close button
puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Goswami, J. ; R&D Process Dev., Micron Technol., Inc., Boise, ID ; McTeer, A.

At a given thickness of HfO2, atomic layer deposited (ALD) TaN metal-gates showed higher equivalent oxide thickness (EOT) and flat-band-voltage (Vfb) shift compared to physical vapor deposited (PVD) TaSiN after annealing at 750degC for 30 min in N2. TEM data revealed the growth of a thicker interfacial oxide of 1.7 nm for TaN compared to 0.9 nm for TaSiN. In addition, TaN showed higher effective workfunction of 4.7 eV compared to 4.4 eV for TaSiN. However, both TaN and TaSiN exhibited Vfb roll-off when the HfO2 thickness was decreased below 4 nm. XPS measurements showed the presence of 6 atom% oxygen in TaN, whereas no significant amount of oxygen was detected in TaSiN. Electrical results are discussed in terms of the oxygen content in metal-gates and oxygen vacancy in HfO2.

Published in:
Microelectronics and Electron Devices, 2009. WMED 2009. IEEE Workshop on

Date of Conference: 3-3 April 2009

Page(s):
1 - 3
E-ISBN :
978-1-4244-3552-4
Print ISBN:
978-1-4244-3551-7
INSPEC Accession Number:
10613958
Conference Location :
Boise, ID
Digital Object Identifier :
10.1109/WMED.2009.4816138
Product Type:
Conference Publications

IEEE Account

Purchase Details

Profile Information

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2013 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.