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- 1. Appl. Phys. Lett. 89, 142909 (2006) , “Fluorine passivation in poly-Si/TaN/HfO2 through ion implantation”, M. H. Zhang, F. Zhu, T. Lee, H. S. Kim, I. J. Ok, G. Thareja, L. Yu, and Jack C. LeeFluorine (F) passivation in poly-Si/TaN/HfO2/p-Si gate stacks through gate ion implantation has been studied. It has been found that when the TaN thickness was less than 15 nm, the mobility and subthreshold swing improved significantly in HfO2 n-channel... (Read more)
- 2. Appl. Phys. Lett. 89, 112121 (2006) , “Nature and stability of the (100)Si/LaAlO3 interface probed by paramagnetic defects”, A. Stesmans, K. Clémer, V. V. Afanas'ev, L. F. Edge, and D. G. SchlomElectron spin resonance analysis of (100)Si/LaAlO3 structures reveals the absence of a Si/SiO2-type interface in terms of archetypal Si-dangling bond-type Si/SiO2 interface defects (Pb0,Pb1). With no... (Read more)
- 3. 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)
- 4. Appl. Phys. Lett. 88, 182903 (2006) , “Effects of Al addition on the native defects in hafnia”, Q. Li, K. M. Koo, W. M. Lau, P. F. Lee, J. Y. Dai, Z. F. Hou, X. G. GongTwo occupied native defect bands are experimentally detected in pure HfO2. The density of states of band one in the middle of the band gap reduces drastically with the Al addition, while that of band two slightly above the valence-band maximum remains rather unaffected. We attribute the... (Read more)
- 5. J. Appl. Phys. 100, 064501 (2006) , “Introduction of defects into HfO2 gate dielectrics by metal-gate deposition studied using x-ray photoelectron spectroscopy and positron annihilation”, A. Uedono, T. Naito, T. Otsuka, K. Shiraishi, K. Yamabe, S. Miyazaki, H. Watanabe, N. Umezawa, T. Chikyow, Y. Akasaka, S. Kamiyama, Y. Nara, and K. YamadaThe impact of TiN deposition on thin HfO2 films formed on Si substrates was studied using x-ray photoelectron spectroscopy and a monoenergetic positron beam. For the predeposition sample, the positrons implanted into Si were found to diffuse toward the HfO2/Si interface under... (Read more)
- 6. Phys. Rev. Lett. 97, 016102 (2006) , “Scaling and Universality of Roughening in Thermal Oxidation of Si(001)”, Hiroo Omi, Hiroyuki Kageshima, and Masashi UematsuBy analyzing atomic force microscopy images, we derive a continuum equation that quantitatively explains the roughening at the Si(001)-SiO2 interface during thermal oxidation at the temperature at 1200 °C in an Ar atmosphere containing a small fraction of O2. We also show... (Read more)
- 7. J. Appl. Phys. 98, 053707 (2005) , “An asymmetry of conduction mechanisms and charge trapping in thin high-k HfxTiySizO films”, A. Paskaleva, A. J. Bauer, M. LembergerThe electrical behavior of high-permittivity (high-k) hafnium titanium silicate (HfxTiySizO) layers with different Hf:Ti ratios in the films is investigated. The films were deposited by metal-organic chemical-vapor deposition using a... (Read more)
- 8. Appl. Phys. Lett. 83, 3407-3409 (2003) , “Electron spin resonance observation of trapped electron centers in atomic-layer-deposited hafnium oxide on Si”, A. Y. Kang, P. M. Lenahan, J. F. Conley Jr.We observed two paramagnetic defects in thin films of HfO2 on silicon with electron spin resonance. Both appear after photoinjecting electrons into the dielectric. Strong spectroscopic evidence links one spectrum to an O2-" align="middle"> defect. A second spectrum is... (Read more)
- 9. Appl. Phys. Lett. 81, 1128-1130 (2002) , “Electron spin resonance study of interface defects in atomic layer deposited hafnium oxide on Si”, A. Y. Kang, P. M. Lenahan, J. F. Conley Jr., R. SolankiWe report electron spin resonance (ESR) observation of interface defects at the HfO2/(111)Si boundary for HfO2 films deposited via atomic layer chemical vapor deposition using Hf(NO3)4 as a precursor. We observe several signals, dominated by one due to a... (Read more)
- 10. 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)
- 11. Appl. Phys. Lett. 80, 1261-1263 (2002) , “Hole trapping in ultrathin Al2O3 and ZrO2 insulators on silicon”, V. V. Afanas'ev and A. StesmansOptical injection of electron-hole pairs in 35 nm thick layers of SiO2, Al2O3, ZrO2 and their stacks on (100)Si is found to result in positive oxide charging, suggesting trapping of holes. In thin layers of the high-permittivity metal oxides... (Read more)
- 12. Mater. Sci. Eng. B 73, 60-63 (2000) , “EPR study of He-implanted Si”, B. Pivac, B. Rakvin, R. Tonini, F. Corni and G. OttavianiElectron paramagnetic resonance has been used to study the influence of thermal treatments on defect evolution in helium-implanted Czochralski single-crystal silicon. It is shown that the thermal treatment induces helium migration and capturing by vacancy clusters that transform into pressurized... (Read more)
- 13. Phys. Rev. B 62, 15702 (2000) , “Microscopic origin of light-induced ESR centers in undoped hydrogenated amorphous silicon”, Takahide Umeda, Satoshi Yamasaki, Junichi Isoya, and Kazunobu Tanaka29Si hyperfine (hf) structures of light-induced electron-spin-resonance (LESR) centers of g=2.004 and 2.01 have been investigated in undoped hydrogenated amorphous silicon (a-Si:H) with different 29Si content (1.6, 4.7,9.1 at. %) by means of pulsed and multifrequency (3,11,34... (Read more)Si| EPR| Boron Silicon amorphous band-tail n-type p-type .inp files: Si/band-tail | last update: Takahide Umeda
- 14. Phys. Rev. Lett. 77, 4600 (1996) , “Electronic Structure of Band-Tail Electrons in a Si:H”, T. Umeda, S. Yamasaki, J. Isoya, A. Matsuda, and K. TanakaElectronic structures of the light-induced electron spin resonance (LESR) centers in undoped a-Si:H have been investigated by means of pulsed ESR techniques. Overlapping LESR signals of g = 2.004 and 2.01 have been experimentally deconvoluted by using the difference in spin-lattice relaxation time... (Read more)Si| EPR| Silicon amorphous band-tail n-type p-type .inp files: Si/band-tail | last update: Takahide Umeda
- 15. 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)
- 16. Appl. Phys. Lett. 61, 2887-2889 (1992) , “Identification of an interface defect generated by hot electrons in SiO2”, J. H. Stathis and D. J. DiMariaHot electrons in the gate dielectric (SiO2) of field effect transistors create defects at the Si/SiO2 interface. Using electrically detected magnetic resonance, we have identified a major component of these interface defects as the well-known Pb0 center. We... (Read more)
- 17. Appl. Phys. Lett. 41, 251-253 (1982) , “Defects and impurities in thermal oxides on silicon”, K. L. Brower, P. M. Lenahan, and P. V. DressendorferOxides grown at 1100 °C in dry oxygen for 60 min to a thickness of 1350 Å on silicon with and without subsequent forming gas anneals were 60Co irradiated at 4 K with doses up to 106 rad (Si). In situ electron paramagnetic... (Read more)
- 18. J. Appl. Phys. 50, 5847-5854 (1979) , “ESR centers, interface states, and oxide fixed charge in thermally oxidized silicon wafers”, P. J. Caplan, E. H. Poindexter, B. E. Deal, R. R. RazoukThe ESR Pb center has been observed in thermally oxidized single-crystal silicon wafers, and compared with oxide fixed charge Qss and oxidation-induced interface states Nst. The Pb center is found to be located... (Read more)
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