Step Coverage and Electrical Properties of (Ba, Sr)TiO<sub>3</sub> Films Prepared by Liquid Source Chemical Vapor Deposition Using TiO(DPM)<sub>2</sub>
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- Kawahara Takaaki
- Semiconductor Research Laboratory, 8–1–1 Tsukaguchi–Honmachi, Amagasaki, Hyogo 661
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- Yamamuka Mikio
- Semiconductor Research Laboratory, 8–1–1 Tsukaguchi–Honmachi, Amagasaki, Hyogo 661
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- Makita Tetsuro
- Semiconductor Research Laboratory, 8–1–1 Tsukaguchi–Honmachi, Amagasaki, Hyogo 661
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- Naka Jiro
- Materials & Electronic Devices Laboratory, Mitsubishi Electric Corporation, 8–1–1 Tsukaguchi–Honmachi, Amagasaki, Hyogo 661
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- Yuuki Akimasa
- Semiconductor Research Laboratory, 8–1–1 Tsukaguchi–Honmachi, Amagasaki, Hyogo 661
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- Mikami Noboru
- Semiconductor Research Laboratory, 8–1–1 Tsukaguchi–Honmachi, Amagasaki, Hyogo 661
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- Ono Kouichi
- Semiconductor Research Laboratory, 8–1–1 Tsukaguchi–Honmachi, Amagasaki, Hyogo 661
書誌事項
- タイトル別名
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- Step Coverage and Electrical Properties of (Ba,Sr)TiO3 Films Prepared by Liquid Source Chemical Vapor Deposition Using TiO(DPM)2.
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抄録
Thin films of (Ba, Sr)TiO3 (BST) with high dielectric constant were prepared on Pt/ SiO2/Si substrates of 6-inch-diameter by liquid source chemical vapor deposition using Ba(DPM)2, Sr(DPM)2 and TiO(DPM)2 (DPM=dipivaloylmethanato; C11H19O2) dissolved in tetrahydrofuran (THF). The reproducibility of ± 3 % for the film composition was achieved by optimizing the deposition procedures. It was found that the coverage of 72%, obtained at the substrate temperature T s=753 K, was better than those obtained using other Ti sources such as Ti(O-i-Pr)4 (TTIP) and Ti(O-i-Pr)2(DPM)2. The electrical properties of the 480-Å-thick BST film, deposited at T s=753 K using TiO(DPM)2, were as follows: dielectric constant ε =230, equivalent SiO2 thickness t eq=7.8 Å, leakage current density J L=6.7× 10-6 A/cm2 at 1.65 V and dielectric loss tan δ =0.013.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 33 (9B), 5129-5134, 1994
The Japan Society of Applied Physics
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001206246447872
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- NII論文ID
- 110003903923
- 30021820663
- 210000035933
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- NII書誌ID
- AA10457675
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- COI
- 1:CAS:528:DyaK2MXht1Ogsb4%3D
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- ISSN
- 13474065
- 00214922
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- 抄録ライセンスフラグ
- 使用不可