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- 1. Appl. Phys. Lett. 91, 133507 (2007) , “Identification of atomic-scale defect structure involved in the negative bias temperature instability in plasma-nitrided devices”, J. P. Campbell, P. M. Lenahan, A. T. Krishnan, and S. KrishnanWe utilize a very sensitive electron spin resonance technique called spin-dependent tunneling to identify defect centers involved in the negative bias temperature instability in plasma-nitrided p-channel metal-oxide-silicon field-effect transistors. The defect's 29Si hyperfine... (Read more)
- 2. Appl. Phys. Lett. 89, 092120 (2006) , “Defect generation at SiO2/Si interfaces by low pressure chemical vapor deposition of silicon nitride”, Hao Jin, K. J. Weber, and P. J. SmithLow pressure chemical vapor deposition of Si3N4 on oxidized Si (111) surfaces causes a change in the properties of the dominant interface defect, the Pb center, observed by electron paramagnetic resonance. The change in the signature of the... (Read more)
- 3. Appl. Phys. Lett. 88, 092108 (2006) , “Hydrogen passivation of carbon Pb like centers at the 3C- and 4H-SiC/SiO2 interfaces in oxidized porous SiC”, J. L. Cantin, H. J. von Bardeleben, Yue Ke, R. P. Devaty, W. J. ChoykeThe effect of forming gas and vacuum annealing on the concentration of carbon dangling bond (PbC) centers at 3C- and 4H-SiC/SiO2 interfaces has been studied by electron paramagnetic resonance (EPR) spectroscopy. Our results show efficient passivation at 400 °C and... (Read more)
- 4. Appl. Phys. Lett. 87, 204106 (2005) , “Direct observation of the structure of defect centers involved in the negative bias temperature instability”, J. P. Campbell and P. M. LenahanWe utilize a very sensitive electron paramagnetic resonance technique called spin-dependent recombination to observe and identify defect centers generated by modest negative bias and moderately elevated temperatures in fully processed p-channel metal-oxide-silicon field-effect transistors.... (Read more)
- 5. J. Appl. Phys. 95, 4096 (2004) , “Nitridation effects on Pb center structures at SiO2/Si(100) interfaces ”,Interfacial defect structures of NO-nitride oxide on Si(100) were characterized by electron spin resonance spectroscopy. We confirmed that the effective g values of the Pb1 center are affected by interfacial nitridation even at a small nitrogen concentration of 5 at. %, while those of the Pb0 center proved to be unchanged. We observed that the shifted Pb1 line appeared gradually with interfacial nitrogen concentration, which suggests that the nitrogen-induced modified structure substitutes for the original Pb1 structure. Angular variations of the shifted Pb1 lines were also significantly different from those of pure oxide. Based on our analysis, we attributed the g value shift of the Pb1 center to dangling bond tilting, caused by the displacement of nearest-neighbor Si atoms. (Read more)
- 6. Appl. Phys. Lett. 82, 3677-3679 (2003) , “Interface defects responsible for negative-bias temperature instability in plasma-nitrided SiON/Si(100) systems”, Shinji Fujieda, Yoshinao Miura, and Motofumi SaitohInterface defects generated by negative-bias temperature stress (NBTS) in an ultrathin plasma- nitrided SiON/Si(100) system were characterized by using D2 annealing, conductance-frequency measurements, and electron-spin resonance measurements. D2 annealing was shown to lower... (Read more)
- 7. Appl. Phys. Lett. 80, 4753-4755 (2002) , “Characterization of S centers generated by thermal degradation in SiO2 on (100)Si”, A. Stesmans, B. Nouwen, D. Pierreux, and V. V. Afanas'evThe structural degradation of thermal SiO2 on (100)Si under isochronal vacuum annealing in the range Tan = 950 °C1250 °C was monitored by electron spin resonance (ESR) in terms of point defect creation, including... (Read more)
- 8. Appl. Phys. Lett. 80, 1945-1947 (2002) , “Density of states of Pb1 Si/SiO2 interface trap centers”, J. P. Campbell and P. M. LenahanThe electronic properties of the (100) Si/SiO2 interfacial defect called Pb1 are quite controversial. We present electron spin resonance measurements that demonstrate: (1) that the Pb1 defects have levels in the silicon band gap, (2) that... (Read more)
- 9. Jpn. J. Appl. Phys. 40, 2840 (2001) , “Spin-Dependent Trap-Assisted Tunneling Current in Ultra-Thin Gate Dielectrics”,We have characterized the leakage current paths of ultra-thin gate dielectrics using spin-dependent tunneling (SDT) spectroscopy. A spin-dependent current was detected in metal-oxide-semiconductor diodes with chemical-vapor-deposition SiN gate films with thickness less than 3 nm. We examined the nature of the trap sites in terms of g-value, bias-dependent signal intensity, and magnetic-field orientation dependence. The main feature of the observed spectrum is attributed to a paramagnetic Si site in the SiN films. By using a quantitative model of electron spin-polarization, we were able to estimate the ratio of trap-assisted current to the total leakage current. (Read more)
- 10. Phys. Rev. B 48, 2418-2435 (1993) , “Structural relaxation of Pb defects at the (111)Si/SiO2 interface as a function of oxidation temperature: The Pb-generation-stress relationship”, A. StesmansElectron-spin-resonance (ESR) studies of intrinsic Pb defects at the (111)Si/SiO2 interface have been carried out as a function of oxidation temperature Tox for the range 22<ToxTox and high-Tox... (Read more)
- 11. Jpn. J. Appl. Phys. 10, 52-62 (1971) , “Study of Silicon-Silicon Dioxide Structure by Electron Spin Resonance I”, Y. NishiThree kinds of paramagnetic centers named PA, PB and PC have been found in a silicon-silicon dioxide structure at liquid nitrogen temperature. PA (g=∼2.000, ΔH=∼4 Oe), and PB having anisotropic g-value... (Read more)
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Updated at 2010-07-20 16:50:39
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