Magnetron Sputtered nc-Al/α-Al2O3 Nanocomposite Thin Films for Nonvolatile Memory Application

被引:9
作者
Li, Yibin [1 ,2 ]
Zhang, Sam [1 ]
Liu, Y. [3 ]
Chen, T. P. [3 ]
Sritharan, Thirumany [4 ]
Xu, Cong [4 ]
机构
[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
[2] Harbin Inst Technol, Sch Astronaut, Ctr Composite Mat, Harbin 150001, Peoples R China
[3] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
[4] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
关键词
Magnetron Sputtering; nc-Al/alpha-Al2O3; Nonvolatile Memory; GATE OXIDE; AL2O3; DEPOSITION; SI(100); DEVICES;
D O I
10.1166/jnn.2009.M19
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this paper, we developed nc-Al/a-Al2O3 nanocomposite thin films using magnetron sputtering. The nc-Al/a-Al2O3 films were sputtered on p-type Si substrates from pure Al target in gas mixture of Ar and O-2. X-ray photoelectron spectroscopy and high resolution transmission electron microscope studies confirm that the nanocrystalline Al are embedded in amorphous Al2O3 matrix thus nc-Al/a-Al2O3 nanocomposite forms. This nanocomposite thin film exhibits memory effect as a result of charge trapping.
引用
收藏
页码:4116 / 4120
页数:5
相关论文
共 15 条
[1]   Dielectric characteristics of Al2O3-HfO2 nanolaminates on Si(100) [J].
Cho, MH ;
Roh, YS ;
Whang, CN ;
Jeong, K ;
Choi, HJ ;
Nam, SW ;
Ko, DH ;
Lee, JH ;
Lee, NI ;
Fujihara, K .
APPLIED PHYSICS LETTERS, 2002, 81 (06) :1071-1073
[2]   Iron oxide thin film growth on Al2O3/NiAl(110) [J].
Handke, Bartosz ;
Simonsen, Jens Baek ;
Bech, Martin ;
Li, Zheshen ;
Moller, Preben Juul .
SURFACE SCIENCE, 2006, 600 (24) :5123-5130
[3]   Optical activation of Er3+ in Al2O3 during pulsed laser deposition [J].
Jimenez de Castro, M. ;
Suarez-Garcia, A. ;
Serna, R. ;
Afonso, C. N. ;
Garcia-Lopez, J. .
OPTICAL MATERIALS, 2007, 29 (05) :539-542
[4]   Growth and characterization of Hf-silicate/Al2O3 gate stacks grown on Si(100) by self-limiting atomic layer deposition [J].
Kim, Jaehyun ;
Lee, Seungjai ;
Yong, Kijung .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (9A) :7080-7083
[5]   Plasma-assisted atomic layer deposition of Al2O3 moisture permeation barriers on polymers [J].
Langereis, E. ;
Creatore, M. ;
Heil, S. B. S. ;
van de Sanden, M. C. M. ;
Kessels, W. M. M. .
APPLIED PHYSICS LETTERS, 2006, 89 (08)
[6]   Memory effect of Al-rich AlN films synthesized with rf magnetron sputtering [J].
Liu, Y ;
Chen, TP ;
Zhao, P ;
Zhang, S ;
Fung, S ;
Fu, YQ .
APPLIED PHYSICS LETTERS, 2005, 87 (03)
[7]   Charging effect on electrical characteristics of MOS structures with Si nanocrystal distribution in gate oxide [J].
Liu, Y ;
Chen, TP ;
Ng, CY ;
Tse, MS ;
Fung, S ;
Liu, YC ;
Li, S ;
Zhao, P .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2004, 7 (07) :G134-G137
[8]   Charging effect of Si nanocrystals in gate oxide near gate on MOS capacitance [J].
Liu, Y ;
Chen, TP ;
Tse, MS ;
Ho, HC ;
Lee, KH .
ELECTRONICS LETTERS, 2003, 39 (16) :1164-1166
[9]   High-temperature tribological properties of spark-plasma-sintered Al2O3 composites containing barite-type structure sulfates [J].
Murakami, T. ;
Ouyang, J. H. ;
Sasaki, S. ;
Umeda, K. ;
Yoneyama, Y. .
TRIBOLOGY INTERNATIONAL, 2007, 40 (02) :246-253
[10]   Nonvolatile memory using Al2O3 film with an embedded Al-rich layer -: art. no. 223110 [J].
Nakata, S ;
Saito, K ;
Shimada, M .
APPLIED PHYSICS LETTERS, 2005, 87 (22) :1-3