Effect of deposition temperature on chemical structure of lanthanum oxide/Si interface structure

H. Nohira, T. Matsuda, K. Tachi, Y. Shiino, J. Song, Y. Kuroki, Jin Aun Ng, P. Ahmet, K. Kakushima, K. Tsutsui, E. Ikenaga, K. Kobayashi, H. Iwai, T. Hattori

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

The effect of substrate-temperature during the deposition of lanthanum oxide on the chemical structure of lanthanum oxide/Si(100) interfacial transition layer formed between lanthanum oxide and Si-substrate was studied from the measurements of angle-resolved Si 1s, O 1s and La 3d5/2 photoelectron spectra. In the case of the deposition at room temperature the amount of lanthanum silicate (La-silicate) was extremely small, and was not affected by the post deposition annealing (PDA) at 300°C, and increased by PDA at temperature above 500°C. On the other hand, in the case of the deposition at 300°C the amount of La-silicate increased appreciably by PDA even at 300°C. Therefore, the existence of La-silicate accelerates the formation of La-silicate by PDA. copyright The Electrochemical Society.

Original languageEnglish
Pages (from-to)169-173
Number of pages5
JournalECS Transactions
Volume3
Issue number2
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventAdvanced Gate Stack, Source/Drain, and Channel Engineering fo Si-Based CMOS 2: New Materials, Processes, and Equipment - 210th Electrochemical Society Meeting - Cancun, Mexico
Duration: 2006 Oct 292006 Nov 3

ASJC Scopus subject areas

  • Engineering(all)

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