Surface Morphologies and Electrical Properties of (Ba, Sr)TiO<sub>3</sub> Films Prepared by Two-Step Deposition of Liquid Source Chemical Vapor Deposition
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- Kawahara Takaaki
- Semiconductor Research Laboratory, Mitsubishi Electric Corporation, 8–1–1 Tsukaguchi–Honmachi Amagasaki, Hyogo 661, Japan
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- Yamamuka Mikio
- Semiconductor Research Laboratory, Mitsubishi Electric Corporation, 8–1–1 Tsukaguchi–Honmachi Amagasaki, Hyogo 661, Japan
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- Yuuki Akimasa
- Semiconductor Research Laboratory, Mitsubishi Electric Corporation, 8–1–1 Tsukaguchi–Honmachi Amagasaki, Hyogo 661, Japan
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- Ono Kouichi
- Semiconductor Research Laboratory, Mitsubishi Electric Corporation, 8–1–1 Tsukaguchi–Honmachi Amagasaki, Hyogo 661, Japan
書誌事項
- タイトル別名
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- Surface Morphologies and Electrical Properties of (Ba,Sr)TiO3 Films Prepared by Two-Step Deposition of Liquid Source Chemical Vapor Deposition.
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抄録
Protrusions of (Ba, Sr)TiO3 (BST) crystallites were found to appear on BST film surfaces prepared by liquid source chemical vapor deposition (CVD) at a substrate temperature T s=420° C and a reactor pressure P=1.5 Torr. Such protrusions were successfully suppressed by two-step deposition, where BST films consisted of a buffer layer and a main layer; the buffer layer was a CVD-BST film about 60 Å thick annealed in N2 ambient. By this two-step deposition on Pt electrodes, the BST film properties of equivalent SiO2 thickness t eq=0.56 nm, leakage current J L=1.2× 10-8 A/cm2 at +1.1 V and dielectric loss tan δ =0.011 were achieved at a total film thickness of 230 Å, along with a coverage of 80% at a trench of aspect ratio 0.65 and sufficiently low absorption current.
収録刊行物
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 34 (9B), 5077-5082, 1995
The Japan Society of Applied Physics
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詳細情報 詳細情報について
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- CRID
- 1390282681223494528
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- NII論文ID
- 110003955191
- 210000037885
- 30021829086
- 130004522049
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- NII書誌ID
- AA10457675
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- ISSN
- 13474065
- 00214922
- http://id.crossref.org/issn/13474065
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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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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可