On the kinetics of solid phase regrowth and dopant activation during rapid thermal annealing of implantation amorphized silicon

1988 ◽  
Vol 64 (2) ◽  
pp. 666-676 ◽  
Author(s):  
W. O. Adekoya ◽  
M. Hage‐Ali ◽  
J. C. Muller ◽  
P. Siffert
2011 ◽  
Vol 1321 ◽  
Author(s):  
A. Kumar ◽  
P.I. Widenborg ◽  
H. Hidayat ◽  
Qiu Zixuan ◽  
A.G. Aberle

ABSTRACTThe effect of the rapid thermal annealing (RTA) and hydrogenation step on the electronic properties of the n+ and p+ solid phase crystallized (SPC) poly-crystalline silicon (poly-Si) thin films was investigated using Hall effect measurements and four-point-probe measurements. Both the RTA and hydrogenation step were found to affect the electronic properties of doped poly-Si thin films. The RTA step was found to have the largest impact on the dopant activation and majority carrier mobility of the p+ SPC poly-Si thin films. A very high Hall mobility of 71 cm2/Vs for n+ poly-Si and 35 cm2/Vs for p+ poly-Si at the carrier concentration of 2×1019 cm-3 and 4.5×1019 cm-3, respectively, were obtained.


1998 ◽  
Vol 135 (1-4) ◽  
pp. 205-208 ◽  
Author(s):  
Yongqian Wang ◽  
Xianbo Liao ◽  
Zhixun Ma ◽  
Guozhen Yue ◽  
Hongwei Diao ◽  
...  

1987 ◽  
Vol 92 ◽  
Author(s):  
E. Ganin ◽  
G. A. Sai-Halasz ◽  
T. O. Sedgwick

AbstractExperimental results on the diffusion and precipitation of In and B doubly implanted into Si, followed by rapid thermal treatment are reported. It was observed that In redistributes itself and accumulates in defected regions. The amount of motion of each species is enhanced by the presence of the other. While the B influences In diffusion probably through the same mechanism that leads to concentration enhancement, the effect of In on B is not clear. There is no correlation with strain and no apparent chemical effects. Also the presence of B facilitates the sweeping out of In during low temperature solid phase regrowth.


Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2248 ◽  
Author(s):  
Hadi Mahmodi ◽  
Md Hashim ◽  
Tetsuo Soga ◽  
Salman Alrokayan ◽  
Haseeb Khan ◽  
...  

In this work, nanocrystalline Ge1−xSnx alloy formation from a rapid thermal annealed Ge/Sn/Ge multilayer has been presented. The multilayer was magnetron sputtered onto the Silicon substrate. This was followed by annealing the layers by rapid thermal annealing, at temperatures of 300 °C, 350 °C, 400 °C, and 450 °C, for 10 s. Then, the effect of thermal annealing on the morphological, structural, and optical characteristics of the synthesized Ge1−xSnx alloys were investigated. The nanocrystalline Ge1−xSnx formation was revealed by high-resolution X-ray diffraction (HR-XRD) measurements, which showed the orientation of (111). Raman results showed that phonon intensities of the Ge-Ge vibrations were improved with an increase in the annealing temperature. The results evidently showed that raising the annealing temperature led to improvements in the crystalline quality of the layers. It was demonstrated that Ge-Sn solid-phase mixing had occurred at a low temperature of 400 °C, which led to the creation of a Ge1−xSnx alloy. In addition, spectral photo-responsivity of a fabricated Ge1−xSnx metal-semiconductor-metal (MSM) photodetector exhibited its extending wavelength into the near-infrared region (820 nm).


1987 ◽  
Vol 92 ◽  
Author(s):  
E. Ma ◽  
M. Natan ◽  
B.S. Lim ◽  
M-A. Nicolet

ABSTRACTSilicide formation induced by rapid thermal annealing (RTA) and conventional furnace annealing (CFA) in bilayers of sequentially deposited films of amorphous silicon and polycrystalline Co or Ni is studied with RBS, X-ray diffraction and TEM. Particular attention is paid to the reliability of the RTA temperature measurements in the study of the growth kinetics of the first interfacial compound, Co2Si and Ni2Si, for both RTA and CFA. It is found that the same diffusion-controlled kinetics applies for the silicide formation by RTA in argon and CFA in vacuum with a common activation energy of 2.1+0.2eV for Co2Si and 1.3+0.2eV for Ni Si. Co and Ni atoms are the dominant diffusing species; during silicide formation by both RTA and CFA. The microstructures of the Ni-silicide formed by the two annealing techniques, however, differs considerably from each other, as revealed by cross-sectional TEM studies.


2007 ◽  
Vol 124-126 ◽  
pp. 447-450 ◽  
Author(s):  
Hyoung June Kim

Polycrystalline Si thin film transistors (TFTs) have been fabricated through solid phase crystallization using field-enhanced rapid thermal annealing (FE-RTA) system. The system consists of inline furnace modules for preheating and cooling of the glass substrates and a process module for rapid radiative heating combined with alternating magnetic field induction. The FE-RTA system enables crystallization of amorphous Si at high throughputs without any glass damages. While the typical grain structures of poly-Si by FE-RTA are similar to those of solid phase crystallization, the residual amorphous Si and intragranular defects are reduced.


1987 ◽  
Vol 103 ◽  
Author(s):  
Menachem Nathan

ABSTRACTA general scheme for determining which metal-Si systems undergo solidphase amorphization (SPA) upon rapid thermal annealing is presented and used to investigate Ni-Si, Ti-Si, V-Si, Co-Si and Cr-Si reactions. SPA occurs only in the first three systems. With the glaring exception of Co-Si, the results agree with the thermodynamic predictions of SPA in systems in which the free energy of a glassy phase is significantly lower than the free energy of the separate components. The amorphization may also be influenced by the diffusing species and contamination. Following SPA, the first crystalline compound is determined by nucleation kinetics.


1996 ◽  
Vol 424 ◽  
Author(s):  
Reece Kingi ◽  
Yaozu Wang ◽  
Stephen J. Fonash ◽  
Osama Awadelkarim ◽  
John Mehlhaff

AbstractRapid thermal annealing and furnace annealing for the solid phase crystallization of amorphous silicon thin films deposited using PECVD from argon diluted silane have been compared. Results reveal that the crystallization time, the growth time, and the transient time are temperature activated, and that the resulting polycrystalline silicon grain size is inversely proportional to the annealing temperature, for both furnace annealing and rapid thermal annealing. In addition, rapid thermal annealing was found to result in a lower transient time, a lower growth time, a lower crystallization time, and smaller grain sizes than furnace annealing, for a given annealing temperature. Interestingly, the transient time, growth time, and crystallization time activation energies are much lower for rapid thermal annealing, compared to furnace annealing.We propose two models to explain the observed differences between rapid thermal annealing and furnace annealing.


Sign in / Sign up

Export Citation Format

Share Document