SiGe Nanocrystals Fabricated by One-Step Thermal Oxidation and Rapid Thermal Annealing

2008 ◽  
Vol 11 (4) ◽  
pp. K44 ◽  
Author(s):  
Chyuan Haur Kao ◽  
Chao Sung Lai ◽  
M. C. Tsai ◽  
K. M. Fan ◽  
C. H. Lee ◽  
...  
2008 ◽  
Vol 1071 ◽  
Author(s):  
Chyuan-Haur Kao ◽  
C. S. Lai ◽  
M. C. Tsai ◽  
C. H. Lee ◽  
C. S. Huang ◽  
...  

AbstractIn this paper, simple techniques were proposed to fabricate germanium nanocrystal capacitors by one-step thermal oxidation and/or rapid thermal annealing on polycrystalline-SiGe (poly-SiGe) deposited with a LPCVD (low pressure chemical vapor deposition) system. This thermal oxidation method can directly result in the top-control oxide layer via the oxidation of amorphous-Si film and the formation of Ge nanocrystals from the poly-SiGe film. Otherwise, the rapid thermal annealing method can be also used to form Ge nanocrystals as comparison.


1997 ◽  
Vol 470 ◽  
Author(s):  
A. T. Fiory

ABSTRACTTemperatures for lamp-heated rapid thermal processing of wafers with various back-side films were controlled by a Lucent Technologies pyrometer which uses a/c lamp ripple to compensate for emissivity. Process temperatures for anneals of arsenic and boron implants were inferred from post-anneal sheet resistance, and for rapid thermal oxidation, from oxide thickness. Results imply temperature control accuracy of 12°C to 17°C at 3 standard deviations.


1991 ◽  
Vol 224 ◽  
Author(s):  
Akira Usami ◽  
Taichi Natori ◽  
Akira Ito ◽  
Takahide Sugiyama ◽  
Seiya Hirota ◽  
...  

AbstractIntroduction of oxygen during thermal oxidation and production of defects by rapid thermal annealing (RTA) in n-type epitaxial Si layers were studied with deep-level transient spectroscopy measurements. We use oxygen-related thermal donors (TDs) as a monitor for introduction of oxygen in silicon epitaxial layers. It is found that oxygen is introduced from the substrate into the epitaxial layer after thermal annealing. The TD was almost annihilated by RTA at .700°C. However, a shallow trap (Ec−0.073±0.005 eV) was induced by RTA.


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