Hydrogen in amorphous Si and Ge during solid phase epitaxy

2010 ◽  
Vol 518 (9) ◽  
pp. 2317-2322 ◽  
Author(s):  
B.C. Johnson ◽  
P. Caradonna ◽  
D.J. Pyke ◽  
J.C. McCallum ◽  
P. Gortmaker
1990 ◽  
Vol 57 (13) ◽  
pp. 1340-1342 ◽  
Author(s):  
J. A. Roth ◽  
G. L. Olson ◽  
D. C. Jacobson ◽  
J. M. Poate

1984 ◽  
Vol 56 (2) ◽  
pp. 279-285 ◽  
Author(s):  
Yasuo Kunii ◽  
Michiharu Tabe ◽  
Kenji Kajiyama

1992 ◽  
Author(s):  
H. Ishiwara ◽  
H. Wakabayashi ◽  
K. Miyazaki ◽  
K. Fukao ◽  
A. Sawaoka

1985 ◽  
Vol 24 (Part 2, No. 7) ◽  
pp. L513-L515 ◽  
Author(s):  
Hiroshi Ishiwara ◽  
Akihiro Tamba ◽  
Hiroshi Yamamoto ◽  
Seijiro Furukawa

1990 ◽  
Vol 205 ◽  
Author(s):  
J. S. Custer ◽  
Michael O. Thompson ◽  
D. J. Eaglesham ◽  
D. C. Jacobson ◽  
J. M. Poate ◽  
...  

AbstractThe competition between solid phase epitaxy and random nucleation during thermal annealing of amorphous Si implanted with the fast diffusers Cu and Ag has been studied. For low concentrations of these impurities, solid phase epitaxy proceeds with small deviations from the intrinsic rate and with the impurity remaining in the shrinking amorphous layer. At a critical metal concentration in the amorphous layer of ∼ 0.12 at.% rapid random nucleation occurs, halting epitaxy and transforming the remaining amorphous material to polycrystalline Si via grain growth. The nucleation rate is at least 8 orders of magnitude greater than the intrinsic homogeneous rate. At higher Cu concentrations nucleation is observed below the temperature needed for epitaxy (400°C). This nucleation, clearly caused by the presence of Cu or Ag in the layer, may be induced by the impurities exceeding the absolute stability concentration and starting to phase separate, leading to enhanced crystal Si nucleation in the metal rich regions.


1996 ◽  
Vol 422 ◽  
Author(s):  
A. Polman ◽  
R. Serna ◽  
J. S. Custer ◽  
M. Lohmeier

AbstractThe incorporation of erbium in silicon is studied during solid phase epitaxy (SPE) of Erimplanted amorphous Si on crystalline Si, and during Si molecular beam epitaxy (MBE). Segregation and trapping of Er is observed on Si(100), both during SPE and MBE. The trapping during SPE shows a discontinuous dependence on Er concentration, attributed to the effect of defect trap sites in the amorphous Si near the interface. Trapping during MBE is described by a continuous kinetic growth model. Above a critical Er density (which is lower for MBE than for SPE), growth instabilities occur, attributed to the formation of silicide precipitates. No segregation occurs during MBE on Si(111), attributed to the epitaxial growth of silicide precipitates.


1984 ◽  
Vol 35 ◽  
Author(s):  
M. Tabe ◽  
Y. Kunii

ABSTRACTLateral solid phase epitaxy (L-SPE) of ultra-high-vacuum (UHV) deposited amorphous Si (a-Si) over patterned SiO2 has been studied to produce monocrystalline silicon-on-insulator (SOI) films. When employing UHV-deposited a-Si, it is essential for L-SPE to reduce step height at the pattern boundary. This is because low density a-Si including columnar voids is formed at the step wall by the self-shadowing effect and SPE region does not extend across the low density a-Si area. L-SPE growth distance of 7 μm was achieved by low temperature annealing (575°C, 20 hr) on a planar substrate with recessed SiO2 patterns. Another deposition technique of a-Si for SPE, i.e., chemical vapor deposition is reviewed for comparison.


1990 ◽  
Vol 56 (6) ◽  
pp. 560-562 ◽  
Author(s):  
K. Kusukawa ◽  
M. Moniwa ◽  
M. Ohkura ◽  
E. Takeda

1992 ◽  
Vol 279 ◽  
Author(s):  
Yasunori Sogoh ◽  
Kouicbi Murakami ◽  
Kohzoh Nasuda

ABSTRACTLaser Solid-phase-epitaxy (SPE) of amorphous Si1−xGex layer on Si formed by the molecular beam deposition (MBD) method was successfully performed by cw-Kr laser irradiation. Laser SPE of small areas was achieved by Laser irradiations of short time durations and high power densities The strain in the Laser-SPE layers was evaluated by micro-Raman scattering. It is demonstrated that strained SiGe layers on Si can be grown in the central area of 10μm size within the area crystallized by Laser- SPE at a substrate temperature of 400°C after preannealing at 350°C for 15 to 30 minutes.


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