Plasma-enhanced and thermal atomic layer deposition of Al2O3 using dimethylaluminum isopropoxide, [Al(CH3)2(μ-OiPr)]2, as an alternative aluminum precursor

Type:
Journal
Info:
Journal of Vacuum Science & Technology A 30, 021505 (2012)
Date:
2012-01-19
DOI:
http://dx.doi.org/10.1116/1.3683057

Author Information

Name Institution
Stephen E. PottsEindhoven University of Technology
Gijs DingemansEindhoven University of Technology
Christophe LachaudAir Liquide
Erwin (W.M.M.) KesselsEindhoven University of Technology

Films

Plasma Al2O3

Hardware used: Oxford Instruments OpAL
DMAI, dimethylaluminum isopropoxide, Me2Al(O-i-Pr)3
CAS#: 6063-89-4
Where to buy precursor
O2, Oxygen
CAS#: 7782-44-7
Deposition Temperature Range = 25-400C

Thermal Al2O3

Hardware used: Oxford Instruments OpAL
DMAI, dimethylaluminum isopropoxide, Me2Al(O-i-Pr)3
CAS#: 6063-89-4
Where to buy precursor
H2O, Water
CAS#: 7732-18-5
Where to buy precursor
Deposition Temperature Range = 100-400C

Film/Plasma Properties

Characteristic: Thickness
Analysis: Ellipsometry
Diagnostic: J.A. Woollam M-2000D

Characteristic: Refractive Index
Analysis: Ellipsometry
Diagnostic: J.A. Woollam M-2000D

Characteristic: Thickness
Analysis: Ellipsometry
Diagnostic: J.A. Woollam M-2000U

Characteristic: Refractive Index
Analysis: Ellipsometry
Diagnostic: J.A. Woollam M-2000U

Characteristic: Chemical Composition, Impurities
Analysis: RBS, Rutherford Backscattering Spectrometry
Diagnostic: AccTec BV

Characteristic: Gas Phase Species
Analysis: QMS, Quadrupole Mass Spectrometer
Diagnostic: Pfeiffer QMS 200

Characteristic: Chemical Composition, Impurities
Analysis: XPS, X-ray Photoelectron Spectroscopy
Diagnostic: Thermo Scientific K-Alpha

Characteristic: Minority Carrier Lifetime
Analysis: Photoconductance
Diagnostic: Sinton WCT-100

Substrates

Silicon

Notes

662