Phosphorus Implant For S/D Extension Formation: Diffusion And Activation Study After Spacer And Spike Anneal

Author(s):  
S. H. Yeong ◽  
B. Colombeau ◽  
F. Benistant ◽  
M. P. Srinivasan ◽  
C. P. A. Mulcahy ◽  
...  
Keyword(s):  
2008 ◽  
Vol 573-574 ◽  
pp. 207-228 ◽  
Author(s):  
Silke Paul ◽  
Wilfried Lerch

This work presents a summary on the use of rapid thermal processing for implant annealing. It gives a short historical overview of rapid thermal processing systems and the first implant anneal processes on these newly developed tools. We then looked in detail on the soak anneal and spike anneal processes and the influence of certain process parameters. For the soak anneal influences of the ambient, either oxidizing or nitriding, were evaluated. The results of spike anneal processes are influenced by the pre-stabilization temperature, ramp-up and ramp-down rate, peak temperature, and gaseous ambient. The need for shallow, abrupt and highly activated junctions leads to co-implantation of species like fluorine or carbon in conjunction with pre-amorphization. Nowadays, combinations of spike and millisecond annealing as well as millisecond annealing alone are in the focus.


2004 ◽  
Vol 810 ◽  
Author(s):  
Nina Burbure ◽  
Kevin S. Jones

ABSTRACTPattern induced defects during advanced CMOS processing can lead to lower quality devices with high leakage currents. Within this study, the effects of oxide trenches on implant related defect formation and evolution in silicon patterned wafers is examined. Oxide filled trenches approximately 4000Å deep were patterned into 300 mm <100> silicon wafers. Patterning was followed by ion implantation of Si+ at energies ranging from 10 to 80 keV. Samples were amorphized with doses of 1×1015 atoms/cm2, 5×1015 atoms/cm2, and 1×1016 atoms/cm2. Two independent repeating structures were studied. The first structure is comprised of silicon oxide filled trench lines, 3.7μm wide spaced 12.5μm apart, while the second structure contains silicon squares, 0.6μm on a side, surrounded by a silicon oxide filled trench. Cross- sectional and planar view transmission electron microscopy (TEM) samples were used to examine the defect morphology after annealing at temperatures ranging from 700°C to 950°C and at times between 1 second and 1 minute. Following complete regrowth, an array of defects was observed to form near the surface at the silicon/silicon oxide interface. These trench edge defects appeared to nucleate at the amorphous-crystalline interface for all energies and doses studied. Upon a spike anneal at 700°C, it was observed that regrowth of the amorphous layer had completed except in the region near the trench edge. Thus, it is believed that this defect results from the pinning of the amorphous-crystalline interface along the trench edge during solid phase epitaxial regrowth (SPER).


2019 ◽  
Vol 34 (1) ◽  
pp. 737-742
Author(s):  
Yonggen He ◽  
Yong Chen ◽  
Jiongping Lu ◽  
Jingang Wu ◽  
Chuanjin Xu ◽  
...  
Keyword(s):  

1998 ◽  
Vol 525 ◽  
Author(s):  
Peter Vandenabeele ◽  
Wayne Renken

ABSTRACTA Model Based Control method is presented for accurate control of RTP systems. The model uses 4 states: lamp filament temperature, wafer temperature, quartz temperature and TC temperature. A set of 4 first order, nonlinear differential equations describes the model. Feedback is achieved by updating the model, based on a comparison between actual (measured) system response and modeled system response.


Author(s):  
E. Josse ◽  
F. Arnaud ◽  
F. Wacquant ◽  
D. Lenoble ◽  
O. Menut ◽  
...  

Author(s):  
A. Lauwers ◽  
S. Mertens ◽  
P. Absil ◽  
T. Chiarella ◽  
T. Hoffmann ◽  
...  
Keyword(s):  

2009 ◽  
Vol 615-617 ◽  
pp. 457-460 ◽  
Author(s):  
Filippo Giannazzo ◽  
Martin Rambach ◽  
Dario Salinas ◽  
Fabrizio Roccaforte ◽  
Vito Raineri

We studied the evolution of the electrical activation with annealing temperature and time in 4H-SiC implanted with Al ions at room temperature (RT). An accurate comparison between the electrical activation data obtained by FPP and SCM was carried out. The dependence of the electrically active profiles on annealing time was studied during isothermal (Tann=1600 °C) annealings for times ranging from 0 (spike anneal) to 30 min. By performing isochronal (t=30 min) processes at temperatures from 1550 to 1650 °C, the effect of the annealing temperature on the net doping concentration profiles was studied. Moreover, the activation energy (6.30.3 eV) associated to the process was extracted from the Arrhenius plot of the net active dose. Finally, the effect of the different thermal budgets on the roughening of the Al implanted 4H-SiC surface was also investigated in details by atomic force microscopy.


Sign in / Sign up

Export Citation Format

Share Document