CN107706096B - 一种碳化硅功率芯片背面减薄和制备欧姆接触的方法及产品 - Google Patents
一种碳化硅功率芯片背面减薄和制备欧姆接触的方法及产品 Download PDFInfo
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- CN107706096B CN107706096B CN201711063523.0A CN201711063523A CN107706096B CN 107706096 B CN107706096 B CN 107706096B CN 201711063523 A CN201711063523 A CN 201711063523A CN 107706096 B CN107706096 B CN 107706096B
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- 238000000034 method Methods 0.000 title claims abstract description 39
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 31
- 229910052751 metal Inorganic materials 0.000 claims abstract description 25
- 239000002184 metal Substances 0.000 claims abstract description 25
- 238000005530 etching Methods 0.000 claims abstract description 17
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 230000008569 process Effects 0.000 claims abstract description 14
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 10
- 239000010432 diamond Substances 0.000 claims abstract description 10
- 238000005224 laser annealing Methods 0.000 claims abstract description 10
- 239000000956 alloy Substances 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 8
- 238000003491 array Methods 0.000 claims abstract description 8
- 238000005468 ion implantation Methods 0.000 claims abstract description 8
- 150000002739 metals Chemical class 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 238000004544 sputter deposition Methods 0.000 claims abstract description 7
- 238000000137 annealing Methods 0.000 claims abstract description 6
- 230000003213 activating effect Effects 0.000 claims abstract description 4
- 230000004913 activation Effects 0.000 claims abstract description 4
- 150000002500 ions Chemical class 0.000 claims abstract description 4
- 238000002513 implantation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 12
- 239000004065 semiconductor Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241001050985 Disco Species 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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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
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/0445—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising crystalline silicon carbide
- H01L21/048—Making electrodes
- H01L21/0485—Ohmic electrodes
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/45—Ohmic electrodes
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Electrodes Of Semiconductors (AREA)
Abstract
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CN201711063523.0A CN107706096B (zh) | 2017-11-02 | 2017-11-02 | 一种碳化硅功率芯片背面减薄和制备欧姆接触的方法及产品 |
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CN201711063523.0A CN107706096B (zh) | 2017-11-02 | 2017-11-02 | 一种碳化硅功率芯片背面减薄和制备欧姆接触的方法及产品 |
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CN107706096A CN107706096A (zh) | 2018-02-16 |
CN107706096B true CN107706096B (zh) | 2024-03-15 |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109037041A (zh) * | 2018-09-21 | 2018-12-18 | 黄兴 | 一种碳化硅的欧姆接触的制备方法及器件 |
CN111223771A (zh) * | 2020-03-10 | 2020-06-02 | 江苏丽隽功率半导体有限公司 | 一种垂直型硅基氮化镓功率器件减薄方法 |
CN113345806B (zh) * | 2021-04-23 | 2024-03-05 | 北京华卓精科科技股份有限公司 | 一种SiC基半导体的激光退火方法 |
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CN102576723A (zh) * | 2009-10-23 | 2012-07-11 | 松下电器产业株式会社 | 半导体装置及其制造方法 |
CN103606517A (zh) * | 2013-09-18 | 2014-02-26 | 中国东方电气集团有限公司 | 一种硅片减薄方法 |
CN103839797A (zh) * | 2012-11-23 | 2014-06-04 | 中国科学院微电子研究所 | 一种igbt短路集电极结构的制备方法 |
JP2014229842A (ja) * | 2013-05-24 | 2014-12-08 | 富士電機株式会社 | 炭化珪素半導体装置の製造方法および炭化珪素半導体装置 |
JP2015198213A (ja) * | 2014-04-03 | 2015-11-09 | 新日鐵住金株式会社 | エピタキシャル炭化珪素ウェハの製造方法及びそれに用いる炭化珪素単結晶基板のホルダー |
CN106024597A (zh) * | 2016-05-30 | 2016-10-12 | 北京世纪金光半导体有限公司 | 一种碳化硅欧姆接触形成方法 |
CN106449394A (zh) * | 2016-11-16 | 2017-02-22 | 中山德华芯片技术有限公司 | 采用电解抛光工艺制作GaN HEMT背面通孔的方法 |
CN107026075A (zh) * | 2016-08-31 | 2017-08-08 | 佛山芯光半导体有限公司 | 采用离子注入增强激光退火制备碳化硅欧姆接触的方法 |
CN207572370U (zh) * | 2017-11-02 | 2018-07-03 | 北京世纪金光半导体有限公司 | 一种碳化硅功率芯片背面减薄和欧姆接触方法制备的产品 |
Family Cites Families (1)
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JP6089235B2 (ja) * | 2012-03-28 | 2017-03-08 | 国立研究開発法人産業技術総合研究所 | 炭化珪素半導体素子の製造方法 |
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- 2017-11-02 CN CN201711063523.0A patent/CN107706096B/zh active Active
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CN101263581A (zh) * | 2005-09-16 | 2008-09-10 | 克里公司 | 其上有碳化硅功率器件的半导体晶圆的处理方法 |
DE102006031407A1 (de) * | 2006-07-05 | 2007-08-30 | Infineon Technologies Ag | Verfahren zum Dünnen von Halbleiterwafern |
CN102044428A (zh) * | 2009-10-13 | 2011-05-04 | 中芯国际集成电路制造(上海)有限公司 | 晶圆的减薄方法 |
CN102576723A (zh) * | 2009-10-23 | 2012-07-11 | 松下电器产业株式会社 | 半导体装置及其制造方法 |
CN103839797A (zh) * | 2012-11-23 | 2014-06-04 | 中国科学院微电子研究所 | 一种igbt短路集电极结构的制备方法 |
JP2014229842A (ja) * | 2013-05-24 | 2014-12-08 | 富士電機株式会社 | 炭化珪素半導体装置の製造方法および炭化珪素半導体装置 |
CN103606517A (zh) * | 2013-09-18 | 2014-02-26 | 中国东方电气集团有限公司 | 一种硅片减薄方法 |
JP2015198213A (ja) * | 2014-04-03 | 2015-11-09 | 新日鐵住金株式会社 | エピタキシャル炭化珪素ウェハの製造方法及びそれに用いる炭化珪素単結晶基板のホルダー |
CN106024597A (zh) * | 2016-05-30 | 2016-10-12 | 北京世纪金光半导体有限公司 | 一种碳化硅欧姆接触形成方法 |
CN107026075A (zh) * | 2016-08-31 | 2017-08-08 | 佛山芯光半导体有限公司 | 采用离子注入增强激光退火制备碳化硅欧姆接触的方法 |
CN106449394A (zh) * | 2016-11-16 | 2017-02-22 | 中山德华芯片技术有限公司 | 采用电解抛光工艺制作GaN HEMT背面通孔的方法 |
CN207572370U (zh) * | 2017-11-02 | 2018-07-03 | 北京世纪金光半导体有限公司 | 一种碳化硅功率芯片背面减薄和欧姆接触方法制备的产品 |
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Title |
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SiC衬底AlGaN/GaN HEMT的ICP通孔刻蚀;任春江;陈堂胜;柏松;徐筱乐;焦刚;陈辰;;半导体学报(12);全文 * |
衬底减薄提高SiC二极管电流密度的研究;刘昊;宋晓峰;柏松;刘奥;陈刚;杨立杰;;固体电子学研究与进展(06);全文 * |
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