Two-Dimensional Local Deep-Level Transient Spectroscopy Imaging Using Super-Higher-Order Scanning Nonlinear Dielectric Microscopy

2016 ◽  
Author(s):  
N. Chinone ◽  
Y. Cho ◽  
R. Kosugi ◽  
Y. Tanaka ◽  
S. Harada ◽  
...  
Keyword(s):  
Deep Level Transient Spectroscopy ◽  
Deep Level ◽  
Higher Order ◽  
Trap Density ◽  
New Technique ◽  
Two Dimensional ◽  
Nonlinear Dielectric ◽  
Annealing Conditions ◽  
Transient Spectroscopy ◽  
A New Technique

Abstract A new technique for local deep level transient spectroscopy (DLTS) imaging using super-higher-order scanning nonlinear dielectric microscopy is proposed. Using this technique. SiCVSiC structure samples with different post oxidation annealing conditions were measured. We observed that the local DLTS signal decreases with post oxidation annealing (POA), which agrees with the well-known phenomena that POA reduces trap density. Furthermore, obtained local DLTS images had dark and bright areas, which is considered to show the trap distribution at/near SiCVSiC interface.

Two-Dimensional Imaging of Trap Distribution in SiO2/SiC Interface Using Local Deep Level Transient Spectroscopy Based on Super-Higher-Order Scanning Nonlinear Dielectric Microscopy

2017 ◽  
Vol 897 ◽  
pp. 127-130
Author(s):  
Norimichi Chinone ◽  
Ryoji Kosugi ◽  
Yasunori Tanaka ◽  
Shinsuke Harada ◽  
Hajime Okumura ◽  
...  
Keyword(s):  
Deep Level Transient Spectroscopy ◽  
Deep Level ◽  
Higher Order ◽  
Trap Density ◽  
New Technique ◽  
Two Dimensional ◽  
Nonlinear Dielectric ◽  
Transient Spectroscopy ◽  
A New Technique

A new technique for local deep level transient spectroscopy (DLTS) imaging using super-higher-order scanning nonlinear dielectric microscopy is proposed. Using this technique, SiO2/SiC structure samples with different post oxidation annealing (POA) conditions were measured. We observed that the local DLTS signal decreases with POA levels, which agrees with the well-known phenomena that POA reduces trap density. Furthermore, obtained local DLTS images had dark and bright areas, which is considered to show the trap distribution at/near SiO2/SiC interface.

Local deep level transient spectroscopy using super-higher-order scanning nonlinear dielectric microscopy

2016 ◽  
Vol 64 ◽  
pp. 566-569 ◽  
Author(s):  
N. Chinone ◽  
R. Kosugi ◽  
Y. Tanaka ◽  
S. Harada ◽  
H. Okumura ◽  
...  
Keyword(s):  
Deep Level Transient Spectroscopy ◽  
Deep Level ◽  
Higher Order ◽  
Nonlinear Dielectric ◽  
Transient Spectroscopy

Deep Level Characterization and Passivation in Heteroepitaxial Inp

1993 ◽  
Vol 325 ◽  
Author(s):  
B. Chatterjee ◽  
S. A. Ringel ◽  
R. Sieg ◽  
I. Weinberg ◽  
R. Hoffman
Keyword(s):  
Electrical Activity ◽  
Deep Level Transient Spectroscopy ◽  
Deep Level ◽  
Deep Levels ◽  
Trap Density ◽  
Pulse Time ◽  
Gaas Substrates ◽  
Transient Spectroscopy ◽  
Logarithmic Dependence

AbstractDeep levels in MOCVD grown p-InP on GaAs substrates have been investigated by Deep Level Transient Spectroscopy (DLTS). The effect of hydrogenation on the electrical activity of these levels has been studied through a combination of DLTS and Photoluminescence (PL) measurements. DLTS measurements indicate a drop of trap density from σ 5 × 1014 cm−3 to σ 1 × 1012 cm−3 after hydrogenation. Annealing at 400°C reactivated only the dopants, while temperatures above 600°C were necessary for deep-level reactivation. This combined with a logarithmic dependence on fill pulse time, indicate that at least one broad DLTS peak is associated with dislocations. The PL the DLTS results show that the dislocation related traps are passivated by hydrogen, preferentially over the dopants and that a wide annealing window exists for dopant reactivation.

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