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- 1. Appl. Phys. Lett. 89, 122112 (2006) , “Interface states for HfO2/Si structure observed by x-ray photoelectron spectroscopy measurements under bias”, Osamu Maida, Ken-ichi Fukayama, Masao Takahashi, Hikaru Kobayashi, Young-Bae Kim, Hyun-Chul Kim, and Duck-Kyun ChoiA 1.0 nm silicon nitride (SiN) layer can prevent reaction between HfO2 and Si completely. In this case, the interface state spectra obtained from x-ray photoelectron spectroscopy measurements under bias have two peaks above and below the midgap, attributable to Si dangling bonds... (Read more)
- 2. Appl. Phys. Lett. 89, 041918 (2006) , “Detection and mobility of hafnium in SiO2”, Dmitri O. Klenov, Thomas E. Mates, and Susanne StemmerHigh-angle annular dark-field imaging in scanning transmission electron microscopy and x-ray photoelectron spectroscopy were used to investigate thermal SiO2 layers doped with Hf by ion implantation. Hf was mobile under the focused electron beam in the as-implanted samples. After... (Read more)
- 3. Appl. Phys. Lett. 88, 193502 (2006) , “Role of oxygen vacancy in HfO2/SiHfO2/Si(100) interfaces”, D.-Y. Cho, S.-J. Oh, Y. J. Chang, T. W. Noh, R. Jung, J.-C. LeeWe have investigated the interface states in HfO2/SiO2/Si(100) systems that were prepared by using the in situ pulsed laser deposition technique. X-ray photoelectron spectroscopy data revealed that when the HfO2 film thickness exceeds 11 Å, the film... (Read more)
- 4. 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)
- 5. J. Appl. Phys. 99, 054507 (2006) , “Characterization of HfSiON gate dielectrics using monoenergetic positron beams”, A. Uedono, K. Ikeuchi, T. Otsuka, K. Shiraishi, K. Yamabe, S. Miyazaki, N. Umezawa, A. Hamid, T. Chikyow, T. Ohdaira M. Muramatsu, R. Suzuki, S. Inumiya, S. Kamiyama, Y. Akasaka, Y. Nara, and K. YamadaThe impact of nitridation on open volumes in thin HfSiOx films fabricated on Si substrates by atomic layer deposition was studied using monoenergetic positron beams. For HfSiOx, positrons were found to annihilate from the trapped state due to open volumes which... (Read more)
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Updated at 2010-07-20 16:50:39
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