JP2016195278A - 化合物半導体基板 - Google Patents
化合物半導体基板 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 64
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- 239000000126 substance Substances 0.000 claims abstract description 21
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66446—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET]
- H01L29/66462—Unipolar field-effect transistors with an active layer made of a group 13/15 material, e.g. group 13/15 velocity modulation transistor [VMT], group 13/15 negative resistance FET [NERFET] with a heterojunction interface channel or gate, e.g. HFET, HIGFET, SISFET, HJFET, HEMT
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/778—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface
- H01L29/7786—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT
- H01L29/7787—Field effect transistors with two-dimensional charge carrier gas channel, e.g. HEMT ; with two-dimensional charge-carrier layer formed at a heterojunction interface with direct single heterostructure, i.e. with wide bandgap layer formed on top of active layer, e.g. direct single heterostructure MIS-like HEMT with wide bandgap charge-carrier supplying layer, e.g. direct single heterostructure MODFET
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- H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
- H01L29/12—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
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Abstract
【解決手段】本発明の化合物半導体基板は、少なくとも1主面が鏡面研磨された化合物半導体基板であって、当該鏡面研磨面が水素(H)、炭素(C)及び酸素(O)を含む有機物で被覆された化合物半導体基板、或いは、少なくとも1主面が鏡面加工された化合物半導体基板であって、成長温度550℃で成長させたエピタキシャル膜と前記化合物半導体基板との界面のシリコン(Si)ピーク濃度が、2×1017cm−3以下である化合物半導体基板である。
【選択図】図2A
Description
(1)テトラメチルアンモニウムハイドロオキシド0.5vol%水溶液に室温(25℃)で5分浸漬
(2)超純水リンス3分
(3)テトラメチルアンモニウムハイドロオキシド0.5vol%水溶液に室温(25℃)で5分浸漬
(4)超純水リンス3分
(5)pH5の硝酸酸性水溶液に室温(25℃)3分浸漬
(6)超純水リンス3分を2回
(7)遠心振り切り乾燥
但し、一般的に知られている他の洗浄方法を用いることもできる。
2 i−GaAs層(高純度エピタキシャル層)
3 n−AlGaAs層(電子供給層)
4 ソース電極
5 ゲート電極
6 ドレン電極
11 正常な電流の流れ
12 異常な電流の流れ
20 界面活性剤
21 有機汚染
Claims (11)
- 少なくとも1主面が鏡面研磨された化合物半導体基板であって、該鏡面研磨面が水素(H)、炭素(C)及び酸素(O)を含む有機物で被覆されたことを特徴とする化合物半導体基板。
- 前記有機物の分子量が700以上2000以下であることを特徴とする請求項1に記載の化合物半導体基板。
- 前記被覆された有機物のエリプソメータで測定した膜厚が、1.5nm以上3.0nm以下であることを特徴とする請求項1又は2に記載の化合物半導体基板。
- 前記有機物が非イオン系界面活性剤であることを特徴とする請求項1〜3のいずれか1項に記載の化合物半導体基板。
- 一次イオンとして69Ga+を用いたTOF−SIMS分析により、質量数31の陽イオン(CH3O+)信号が相対強度で2.4×10−3以上を有することを特徴とする請求項1〜4のいずれか1項に記載の化合物半導体基板。
- 一次イオンとして69Ga+を用いたTOF−SIMS分析により、質量数73の陽イオン(C3H5O2 +)信号が相対強度3.2×10−4以上を有することを特徴とする請求項1〜4のいずれか1項に記載の化合物半導体基板。
- 一次イオンとして69Ga+を用いたTOF−SIMS分析により、質量数31の陽イオン(CH3O+)相対強度が、標準洗浄の化合物半導体基板の該相対強度の2.0倍以上であることを特徴とする請求項1〜4のいずれか1項に記載の化合物半導体基板。
- 一次イオンとして69Ga+を用いたTOF−SIMS分析により、質量数73の陽イオン(C3H5O2 +)相対強度が、標準洗浄の化合物半導体基板の該相対強度の4.1倍以上であることを特徴とする請求項1〜4のいずれか1項に記載の化合物半導体基板。
- 入射X線エネルギー365eV、取り出し角度90度の放射光XPS分析により、C1s:285eVのピークに対して1.5±0.5eV高エネルギー側にピークが検出されることを特徴とする請求項1〜4のいずれか1項に記載の化合物半導体基板。
- 前記高エネルギー側のピークの積分強度が、前記285eV付近のピークの積分強度の0.25倍以上であることを特徴とする請求項9に記載の化合物半導体基板。
- 少なくとも1主面が鏡面加工された化合物半導体基板であって、成長温度550℃で成長させたエピタキシャル膜と前記化合物半導体基板との界面のシリコン(Si)ピーク濃度が、2×1017cm−3以下であることを特徴とする化合物半導体基板。
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JP2016148028A Pending JP2016195278A (ja) | 2011-05-18 | 2016-07-28 | 化合物半導体基板 |
JP2017113992A Pending JP2017152748A (ja) | 2011-05-18 | 2017-06-09 | 化合物半導体基板 |
JP2019082594A Pending JP2019117959A (ja) | 2011-05-18 | 2019-04-24 | エピタキシャル成長用の化合物半導体基板の製造方法、化合物半導体基板上のエピタキシャル成長方法および化合物半導体基板。 |
JP2020185610A Active JP7060060B2 (ja) | 2011-05-18 | 2020-11-06 | エピタキシャル成長用の化合物半導体基板の製造方法、化合物半導体基板上のエピタキシャル成長方法および化合物半導体基板 |
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JP2019082594A Pending JP2019117959A (ja) | 2011-05-18 | 2019-04-24 | エピタキシャル成長用の化合物半導体基板の製造方法、化合物半導体基板上のエピタキシャル成長方法および化合物半導体基板。 |
JP2020185610A Active JP7060060B2 (ja) | 2011-05-18 | 2020-11-06 | エピタキシャル成長用の化合物半導体基板の製造方法、化合物半導体基板上のエピタキシャル成長方法および化合物半導体基板 |
Country Status (6)
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US (1) | US9000567B2 (ja) |
JP (5) | JP6070548B2 (ja) |
CN (2) | CN107039516B (ja) |
DE (2) | DE202012013658U1 (ja) |
TW (3) | TWI625768B (ja) |
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WO2012157476A1 (ja) * | 2011-05-18 | 2012-11-22 | 住友電気工業株式会社 | 化合物半導体基板 |
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CN114855260B (zh) * | 2017-09-21 | 2024-03-01 | 住友电气工业株式会社 | 半绝缘性化合物半导体基板和半绝缘性化合物半导体单晶 |
JP6530125B1 (ja) * | 2018-04-27 | 2019-06-12 | 住友化学株式会社 | 光学フィルム |
US20210079556A1 (en) * | 2018-08-07 | 2021-03-18 | Sumitomo Electric Industries, Ltd. | Gallium arsenide single crystal and gallium arsenide single crystal substrate |
WO2022070969A1 (ja) * | 2020-09-30 | 2022-04-07 | 株式会社フジミインコーポレーテッド | 酸化ガリウム基板用洗浄剤 |
JP7327714B1 (ja) * | 2022-09-16 | 2023-08-16 | 住友電気工業株式会社 | ヒ化ガリウム単結晶基板およびその製造方法 |
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DE202012013658U1 (de) | 2019-04-30 |
JP7060060B2 (ja) | 2022-04-26 |
WO2012157476A1 (ja) | 2012-11-22 |
JP6070548B2 (ja) | 2017-02-01 |
CN107039516A (zh) | 2017-08-11 |
TW201729258A (zh) | 2017-08-16 |
TWI556288B (zh) | 2016-11-01 |
JPWO2012157476A1 (ja) | 2014-07-31 |
TW201705220A (zh) | 2017-02-01 |
CN107039516B (zh) | 2020-07-10 |
CN103460349B (zh) | 2016-11-23 |
JP2017152748A (ja) | 2017-08-31 |
JP2019117959A (ja) | 2019-07-18 |
DE112012002127B4 (de) | 2022-10-27 |
US20120292747A1 (en) | 2012-11-22 |
TWI588876B (zh) | 2017-06-21 |
TWI625768B (zh) | 2018-06-01 |
CN103460349A (zh) | 2013-12-18 |
TW201250794A (en) | 2012-12-16 |
US9000567B2 (en) | 2015-04-07 |
JP2021015999A (ja) | 2021-02-12 |
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