Tuning Material Properties of Oxides and Nitrides by Substrate Biasing during Plasma-Enhanced Atomic Layer Deposition on Planar and 3D Substrate Topographies

Type:
Journal
Info:
ACS Appl. Mater. Interfaces, 0, 0 (0), pp null
Date:
2018-03-19
DOI:
http://dx.doi.org/10.1021/acsami.8b00183

Author Information

Name Institution
Tahsin FarazEindhoven University of Technology
Harm C. M. KnoopsEindhoven University of Technology
Marcel A. VerheijenEindhoven University of Technology
Cristian Van HelvoirtEindhoven University of Technology
Saurabh KarwalEindhoven University of Technology
Akhil SharmaEindhoven University of Technology
Vivek BeladiyaFriedrich-Schiller-Universität Jena
Adriana SzeghalmiFriedrich-Schiller-Universität Jena
Dennis M. HausmannLam Research Corporation
Jon HenriLam Research Corporation
Mariadriana CreatoreEindhoven University of Technology
Erwin (W.M.M.) KesselsEindhoven University of Technology

Films

Plasma TiO2

Hardware used: Oxford Instruments FlexAL
TDMATi, tetrakis(dimethylamido)titanium, titanium dimethylamide, (Me2N)4Ti
CAS#: 3275-24-9
Where to buy precursor
O2, Oxygen
CAS#: 7782-44-7
Deposition Temperature Range = 150-300C

Plasma TiN

Hardware used: Oxford Instruments FlexAL
TDMATi, tetrakis(dimethylamido)titanium, titanium dimethylamide, (Me2N)4Ti
CAS#: 3275-24-9
Where to buy precursor
H2, Hydrogen
CAS#: 1333-74-0

Where to buy onsite generators

Ar, Argon
CAS#: 7440-37-1
Deposition Temperature = 200C

Plasma HfO2

Hardware used: Oxford Instruments FlexAL
Tris(dimethylamido)cyclopentadienyl Hafnium, HfCp(NMe2)3, Air Liquide HyALDTM
CAS#: 941596-80-1
Where to buy precursor
O2, Oxygen
CAS#: 7782-44-7
Deposition Temperature = 150C

Plasma HfNx

Hardware used: Oxford Instruments FlexAL
Tris(dimethylamido)cyclopentadienyl Hafnium, HfCp(NMe2)3, Air Liquide HyALDTM
CAS#: 941596-80-1
Where to buy precursor
H2, Hydrogen
CAS#: 1333-74-0

Where to buy onsite generators

Deposition Temperature = 450C

Plasma SiO2

Hardware used: Oxford Instruments FlexAL
BDEAS, SAM-24, Bis(diethylamino)silane, (Et2N)2SiH2
CAS#: 27804-64-4
Where to buy precursor
O2, Oxygen
CAS#: 7782-44-7
Deposition Temperature = 200C

Plasma SiNx

Hardware used: Oxford Instruments FlexAL
di(sec-butylamino)silane (DSBAS), ((s-Bu)2N)SiH3
CAS#: 0-0-0
N2, Nitrogen
CAS#: 7727-37-9
Deposition Temperature = 500C

Film/Plasma Properties

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

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

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

Characteristic: Resistivity, Sheet Resistance
Analysis: Four-point Probe
Diagnostic: Signatone

Characteristic: Density
Analysis: XRR, X-Ray Reflectivity
Diagnostic: Bruker D8 Advance

Characteristic: Stress
Analysis: Wafer Curvature
Diagnostic: KLA-Tencor FLX 2320

Characteristic: Morphology, Roughness, Topography
Analysis: XRR, X-Ray Reflectivity
Diagnostic: Bruker D8 Advance

Characteristic: Wet Etch Resistance
Analysis: Custom
Diagnostic: Custom

Characteristic: Morphology, Roughness, Topography
Analysis: AFM, Atomic Force Microscopy
Diagnostic: Veeco Dimension 3100

Characteristic: Conformality, Step Coverage
Analysis: TEM, Transmission Electron Microscope
Diagnostic: JEOL 2010F

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

Characteristic: Crystallinity, Crystal Structure, Grain Size, Atomic Structure
Analysis: HAADF, High-Angle Annular Dark Field
Diagnostic: JEOL JEM ARM 200

Characteristic: Chemical Composition, Impurities
Analysis: TOF-ERDA, Time-Of-Flight Elastic Recoil Detection Analysis
Diagnostic: -

Characteristic: Crystallinity, Crystal Structure, Grain Size, Atomic Structure
Analysis: Electron Diffraction
Diagnostic: JEOL JEM ARM 200

Characteristic: Crystallinity, Crystal Structure, Grain Size, Atomic Structure
Analysis: XRD, X-Ray Diffraction
Diagnostic: PANalytical Xpert PRO MRD X-ray Diffractometer

Substrates

Si(100)
SiO2

Notes

1106