Charge State of Copper-Silicide Precipitates in Silicon and its Application to the Understanding of Copper Precipitation Kinetics

1998 ◽  
Vol 510 ◽  
Author(s):  
A.A. Istratov ◽  
O.F. Vyvenko ◽  
C. Flink ◽  
T. Heiser ◽  
H. Hieslmair ◽  
...  

AbstractDeep level spectra obtained on n-type silicon samples after copper diffusion and rapid quench give evidence of a positive charge state of the precipitates in p-type silicon. Non-exponential precipitation behavior of interstitial Cu is demonstrated and explained. The possibility of Coulomb interaction between copper ions and copper precipitates is suggested and its influence on Cu precipitation kinetics is disCussed.

2012 ◽  
Vol 9 (10-11) ◽  
pp. 1992-1995 ◽  
Author(s):  
C. K. Tang ◽  
L. Vines ◽  
B. G. Svensson ◽  
E. V. Monakhov

2016 ◽  
Vol 254 (4) ◽  
pp. 1600593
Author(s):  
Eddy Simoen ◽  
Suseendran Jayachandran ◽  
Annelies Delabie ◽  
Matty Caymax ◽  
Marc Heyns

1999 ◽  
Vol 74 (9) ◽  
pp. 1263-1265 ◽  
Author(s):  
C. R. Cho ◽  
N. Yarykin ◽  
R. A. Brown ◽  
O. Kononchuk ◽  
G. A. Rozgonyi ◽  
...  

1993 ◽  
Vol 320 ◽  
Author(s):  
B.G. Svensson

ABSTRACTThe electrical properties of Cu/Si(100) and Cu3Si/Si(100) interfaces have been studied using both n- and p-type silicon samples. Current-voltage and capacitance-voltage measurements were performed in the temperature range 80-295 K in order to monitor Schottky barrier formation and electrical carrier concentration profiles. Deep-level transient spectroscopy was employed to observe Cu-related energy levels in the forbidden band gap of Si, and different ion beam analysis techniques were applied to study the interfacial reaction between Cu and Si. Emphasis is put on determination of Schottky barrier heights and their variation with temperature, dopant passivation by Cu atoms and interaction of Cu with irradiation-induced point defects in silicon.


1986 ◽  
Vol 71 ◽  
Author(s):  
F.D. Whitwer ◽  
H. Haddad ◽  
L. Forbes

AbstractCapacitance DLTS measurements have been performed on heavily precipitated n— and p—type silicon wafers. The results indicate heavy metal gettering with a mid-bandgap deep level (0.55eV) for n—type silicon. The results for p—type siliconshow a band of states present in the lower half of the bandgap. This band of states correlates well to the band of allowed energies found in heavily dislocated p—type silicon.


1983 ◽  
Vol 25 ◽  
Author(s):  
O. Paz ◽  
F. D. Auret

ABSTRACTDefects introduced in p-type silicon during RF sputter deposition of Ti-W and electron-beam evaporation of hafnium were investigated using I-V, deep level transient spectroscopy and electron-beam induced current techniques. DLTS measurements indicate the presence of several deposition and evaporation induced defect states. H(0.35) at EV + .35 eV and H(0.38) were the most prominent defects. Minority carrier diffusion length results taken after annealing showed that in the case of the Hf contacts the damage was annealed out while in the case of Ti-W it was not. These differences in carrier recombination are traced to the concentration of H(0.35). Sputtering or evaporation induced damage also increased the barrier height. This observed increase was modeled assuming the introduction of donor-like defects.


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