Thermal stability and electrical characteristics of ultrathin hafnium oxide gate dielectric reoxidized with rapid thermal annealing

2000 ◽  
Vol 76 (14) ◽  
pp. 1926-1928 ◽  
Author(s):  
Byoung Hun Lee ◽  
Laegu Kang ◽  
Renee Nieh ◽  
Wen-Jie Qi ◽  
Jack C. Lee
Keyword(s):  
Thermal Stability ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Hafnium Oxide ◽  
Gate Dielectric ◽  
Electrical Characteristics

Electrical characteristics of highly reliable ultrathin hafnium oxide gate dielectric

2000 ◽  
Vol 21 (4) ◽  
pp. 181-183 ◽  
Author(s):  
Laegu Kang ◽  
Byoung Hun Lee ◽  
Wen-Jie Qi ◽  
Yongjoo Jeon ◽  
R. Nieh ◽  
...  
Keyword(s):  
Hafnium Oxide ◽  
Gate Dielectric ◽  
Electrical Characteristics

Rapid Thermal Anneaung of Arsenic-Phosphorus(N+-N-) Double-Diffused Shallow Junctions

1985 ◽  
Vol 52 ◽  
Author(s):  
D. L. Kwong ◽  
N. S. Alvi ◽  
Y. H. Ku ◽  
A. W. Cheung
Keyword(s):  
Ion Implantation ◽  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Experimental Results ◽  
Silicon Substrates ◽  
Electrical Characteristics ◽  
Shallow Junctions

ABSTRACTDouble-diffused shallow junctions have been formed by ion implantation of both phosphorus and arsenic ions into silicon substrates and rapid thermal annealing. Experimental results on defect removal, impurity activation and redistribution, effects of Si preamorphization, and electrical characteristics of Ti-silicided junctions are presented.

The Effect of Rapid Thermal Annealing on the Electrical and Material Characteristics of Planar Doped and Uniformly Doped GaAs/AiGaAs/InGaAs Pseudomorphic HEMT Structures

1991 ◽  
Vol 240 ◽  
Author(s):  
T. E. Kazior ◽  
S. K. Brierley
Keyword(s):  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Material Properties ◽  
Structural Changes ◽  
Electrical Characteristics ◽  
Pl Spectra ◽  
Annealing Temperatures ◽  
Si Doping ◽  
Significant Change ◽  
Ingaas Quantum Well

ABSTRACTMBE grown GaAs/Al0.25Ga0.75As/In0.85Ga0.85 As structures were subjected to SiNx capped rapid thermal annealing and their electrical and material properties were characterized by Hall measurements and photoluminescence (PL). Low temperature (5°K) PL spectra from undoped structures annealed up to 900°C indicated negligible intermixing at the AIGaAs/lnGaAs interface. For planar doped structures (Nd≈5×1012/cm2) the Hall mobility began to decrease at anneal temperatures as low as 800°C with significant degradation observed for annealing temperatures at 850°C. This data is supported by PL spectra which indicate no significant change for samples annealed at 800°C. For the samples annealed at ≥ 850°C a large increase in the full width at half maximum of the transitions from the electron sub-bands of the InGaAs quantum well were observed, suggesting that the change in electrical characteristics is primarily due to diffusion of the Si doping pulse. In contrast. Hall measurement of uniformly doped structures reveal only small decreases in mobility and no significant change in sheet concentration for anneal temperatures up to 900°C and doping levels up to 2.5×1018/cm3. PL spectra reveal no structural changes.

Chemical Stability of Advanced Metal Gate and Ultra-thin Gate Dielectric Interface During Rapid Thermal Annealing

1998 ◽  
Vol 525 ◽  
Author(s):  
B. Claflin ◽  
M. Binger ◽  
G. Lucovsky
Keyword(s):  
Thermal Annealing ◽  
Rapid Thermal Annealing ◽  
Chemical Stability ◽  
Electron Spectroscopy ◽  
Auger Electron ◽  
Elevated Temperatures ◽  
Gate Dielectric ◽  
Metal Gate ◽  
Dielectric Interface ◽  
On Line

ABSTRACTThe chemical stability of the compound metals TiNx and WNx on SiO2 and SiO2/Si3N4 (ON) dielectric stacks is studied by on-line Auger electron spectroscopy (AES) following sequential rapid thermal annealing treatments of 15 - 180 s up to 850 °C. The TiNx/SiO2 interface reacts at 850 °C and the reaction is kinetics driven. The TiNx/Si3N4 interface is more stable than TiNx/SiO2 even after a 180 s anneal at 850 °C. WNx is stable below 650 °C both on SiO2 and Si3N4, but above this temperature the film changes, possibly due to crystallization or interdiffusion. The changes in the WNx film are not controlled by kinetics. The compound metals are chemically more stable at elevated temperatures than pure Ti or W on SiO2.

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