JP2020155530A - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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Abstract
【解決手段】 半導体装置の製造方法であって、酸化ガリウム基板の表面を酸性またはアルカリ性の薬液に曝して、前記表面の表面粗さを上昇させる工程と、表面粗さを上昇させた前記表面に電極を形成する工程、を有する。この製造方法を用いることによって、表面粗さを上昇させた前記表面に電極が接触する。したがって、電極を酸化ガリウム基板にオーミック接触させることが可能である。
【選択図】図1
Description
20a :第1部分
20b :第2部分
22 :クリアランス領域
30 :電源
32 :電流計
34 :電圧計
Claims (3)
- 半導体装置の製造方法であって、
酸化ガリウム基板の表面を酸性またはアルカリ性の薬液に曝して、前記表面の表面粗さを上昇させる工程と、
表面粗さを上昇させた前記表面に電極を形成する工程、
を有する製造方法。 - 前記薬液が、リン酸、硝酸、塩酸、硫酸、酢酸、過酸化水素、水酸化ナトリウム、水酸化カリウム、水酸化テトラメチルアンモニウムの少なくとも1つを含む、請求項1の製造方法。
- 前記電極が、チタンを含む、請求項1または2の製造方法。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019051304A JP2020155530A (ja) | 2019-03-19 | 2019-03-19 | 半導体装置の製造方法 |
US16/794,530 US20200303225A1 (en) | 2019-03-19 | 2020-02-19 | Method of manufacturing semiconductor device |
CN202010187749.7A CN111725057A (zh) | 2019-03-19 | 2020-03-17 | 半导体装置的制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019051304A JP2020155530A (ja) | 2019-03-19 | 2019-03-19 | 半導体装置の製造方法 |
Publications (1)
Publication Number | Publication Date |
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JP2020155530A true JP2020155530A (ja) | 2020-09-24 |
Family
ID=72514654
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JP2019051304A Pending JP2020155530A (ja) | 2019-03-19 | 2019-03-19 | 半導体装置の製造方法 |
Country Status (3)
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---|---|
US (1) | US20200303225A1 (ja) |
JP (1) | JP2020155530A (ja) |
CN (1) | CN111725057A (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004071657A (ja) * | 2002-08-01 | 2004-03-04 | Nec Corp | Iii族窒化物半導体素子、iii族窒化物半導体基板およびiii族窒化物半導体素子の製造方法 |
JP2005244073A (ja) * | 2004-02-27 | 2005-09-08 | National Institute Of Advanced Industrial & Technology | 太陽電池及び太陽電池の製造方法 |
JP2006032736A (ja) * | 2004-07-16 | 2006-02-02 | Koha Co Ltd | 半導体素子の製造方法 |
JP2009026914A (ja) * | 2007-07-19 | 2009-02-05 | Nippon Light Metal Co Ltd | ウェットエッチングにおけるエッチング量の算出方法 |
WO2013035842A1 (ja) * | 2011-09-08 | 2013-03-14 | 株式会社タムラ製作所 | Ga2O3系半導体素子 |
WO2013069729A1 (ja) * | 2011-11-09 | 2013-05-16 | 株式会社タムラ製作所 | 半導体素子及びその製造方法 |
CN107993934A (zh) * | 2017-12-08 | 2018-05-04 | 中国科学院微电子研究所 | 增强氧化镓半导体器件欧姆接触的方法 |
JP2018142655A (ja) * | 2017-02-28 | 2018-09-13 | 株式会社タムラ製作所 | ショットキーバリアダイオード |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120167971A1 (en) * | 2010-12-30 | 2012-07-05 | Alexey Krasnov | Textured coating for thin-film solar cells and/or methods of making the same |
US10103282B2 (en) * | 2016-09-16 | 2018-10-16 | Nano And Advanced Materials Institute Limited | Direct texture transparent conductive oxide served as electrode or intermediate layer for photovoltaic and display applications |
US11222985B2 (en) * | 2017-02-14 | 2022-01-11 | Mitsubishi Electric Corporation | Power semiconductor device |
-
2019
- 2019-03-19 JP JP2019051304A patent/JP2020155530A/ja active Pending
-
2020
- 2020-02-19 US US16/794,530 patent/US20200303225A1/en not_active Abandoned
- 2020-03-17 CN CN202010187749.7A patent/CN111725057A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004071657A (ja) * | 2002-08-01 | 2004-03-04 | Nec Corp | Iii族窒化物半導体素子、iii族窒化物半導体基板およびiii族窒化物半導体素子の製造方法 |
JP2005244073A (ja) * | 2004-02-27 | 2005-09-08 | National Institute Of Advanced Industrial & Technology | 太陽電池及び太陽電池の製造方法 |
JP2006032736A (ja) * | 2004-07-16 | 2006-02-02 | Koha Co Ltd | 半導体素子の製造方法 |
JP2009026914A (ja) * | 2007-07-19 | 2009-02-05 | Nippon Light Metal Co Ltd | ウェットエッチングにおけるエッチング量の算出方法 |
WO2013035842A1 (ja) * | 2011-09-08 | 2013-03-14 | 株式会社タムラ製作所 | Ga2O3系半導体素子 |
WO2013069729A1 (ja) * | 2011-11-09 | 2013-05-16 | 株式会社タムラ製作所 | 半導体素子及びその製造方法 |
JP2018142655A (ja) * | 2017-02-28 | 2018-09-13 | 株式会社タムラ製作所 | ショットキーバリアダイオード |
CN107993934A (zh) * | 2017-12-08 | 2018-05-04 | 中国科学院微电子研究所 | 增强氧化镓半导体器件欧姆接触的方法 |
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Publication number | Publication date |
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CN111725057A (zh) | 2020-09-29 |
US20200303225A1 (en) | 2020-09-24 |
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