CN107993974B - 一种碳化硅的选择性氧化方法 - Google Patents
一种碳化硅的选择性氧化方法 Download PDFInfo
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- CN107993974B CN107993974B CN201711204459.3A CN201711204459A CN107993974B CN 107993974 B CN107993974 B CN 107993974B CN 201711204459 A CN201711204459 A CN 201711204459A CN 107993974 B CN107993974 B CN 107993974B
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- oxidized
- region
- selective oxidation
- mask layer
- silicon carbide
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- 230000003647 oxidation Effects 0.000 title claims abstract description 29
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 26
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title abstract description 26
- 229910010271 silicon carbide Inorganic materials 0.000 title abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 25
- -1 oxygen ions Chemical class 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000002513 implantation Methods 0.000 claims abstract description 10
- 238000005468 ion implantation Methods 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000000151 deposition Methods 0.000 claims abstract description 5
- 238000000059 patterning Methods 0.000 claims abstract description 4
- 238000001259 photo etching Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229920002120 photoresistant polymer Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- 230000002776 aggregation Effects 0.000 claims description 2
- 238000004220 aggregation Methods 0.000 claims description 2
- 230000006872 improvement Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000293849 Cordylanthus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 235000012431 wafers Nutrition 0.000 description 1
Images
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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76202—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using a local oxidation of silicon, e.g. LOCOS, SWAMI, SILO
-
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76202—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using a local oxidation of silicon, e.g. LOCOS, SWAMI, SILO
- H01L21/76213—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using a local oxidation of silicon, e.g. LOCOS, SWAMI, SILO introducing electrical inactive or active impurities in the local oxidation region, e.g. to alter LOCOS oxide growth characteristics or for additional isolation purpose
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Element Separation (AREA)
- Local Oxidation Of Silicon (AREA)
Abstract
Description
Claims (7)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711204459.3A CN107993974B (zh) | 2017-11-27 | 2017-11-27 | 一种碳化硅的选择性氧化方法 |
PCT/CN2018/115870 WO2019101010A1 (zh) | 2017-11-27 | 2018-11-16 | 一种碳化硅的选择性氧化方法 |
Applications Claiming Priority (1)
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CN201711204459.3A CN107993974B (zh) | 2017-11-27 | 2017-11-27 | 一种碳化硅的选择性氧化方法 |
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CN107993974A CN107993974A (zh) | 2018-05-04 |
CN107993974B true CN107993974B (zh) | 2020-05-29 |
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CN (1) | CN107993974B (zh) |
WO (1) | WO2019101010A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107993974B (zh) * | 2017-11-27 | 2020-05-29 | 北京品捷电子科技有限公司 | 一种碳化硅的选择性氧化方法 |
CN108847384A (zh) * | 2018-06-11 | 2018-11-20 | 重庆伟特森电子科技有限公司 | 一种在碳化硅基片上生长氧化层的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102420130A (zh) * | 2011-07-01 | 2012-04-18 | 上海华力微电子有限公司 | 通过离子注入工艺来控制氧化膜厚度的方法 |
CN103472533A (zh) * | 2013-09-26 | 2013-12-25 | 山东建筑大学 | 一种离子注入制备掺铒碳化硅光波导的方法 |
CN105810722A (zh) * | 2016-03-16 | 2016-07-27 | 中国科学院半导体研究所 | 一种碳化硅mosfet器件及其制备方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003282845A (ja) * | 2002-03-20 | 2003-10-03 | Mitsubishi Electric Corp | 炭化ケイ素基板の製造方法およびその製造方法により製造された炭化ケイ素基板、ならびに、ショットキーバリアダイオードおよび炭化ケイ素薄膜の製造方法 |
JP3808814B2 (ja) * | 2002-08-26 | 2006-08-16 | 株式会社ルネサステクノロジ | 半導体装置の製造方法 |
CN102169104A (zh) * | 2010-12-22 | 2011-08-31 | 重庆邮电大学 | 基于SiC的MOSFET的汽车发动机用氧传感器 |
CN107993974B (zh) * | 2017-11-27 | 2020-05-29 | 北京品捷电子科技有限公司 | 一种碳化硅的选择性氧化方法 |
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2017
- 2017-11-27 CN CN201711204459.3A patent/CN107993974B/zh active Active
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2018
- 2018-11-16 WO PCT/CN2018/115870 patent/WO2019101010A1/zh active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102420130A (zh) * | 2011-07-01 | 2012-04-18 | 上海华力微电子有限公司 | 通过离子注入工艺来控制氧化膜厚度的方法 |
CN103472533A (zh) * | 2013-09-26 | 2013-12-25 | 山东建筑大学 | 一种离子注入制备掺铒碳化硅光波导的方法 |
CN105810722A (zh) * | 2016-03-16 | 2016-07-27 | 中国科学院半导体研究所 | 一种碳化硅mosfet器件及其制备方法 |
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WO2019101010A1 (zh) | 2019-05-31 |
CN107993974A (zh) | 2018-05-04 |
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Effective date of registration: 20200529 Address after: 400700 No. 117-237, Yunhan Avenue, Beibei District, Chongqing Co-patentee after: BEIJING PINJIE ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee after: CHONGQING WEITESEN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 101302 Zhongguancun Technology Park, Shunyi District, Beijing, Shunyi garden, No. two road 1 Patentee before: BEIJING PINJIE ELECTRONIC TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20221227 Address after: 400700 No. 117-237, Yunhan Avenue, Beibei District, Chongqing Patentee after: CHONGQING WEITESEN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 400700 No. 117-237, Yunhan Avenue, Beibei District, Chongqing Patentee before: CHONGQING WEITESEN ELECTRONIC TECHNOLOGY Co.,Ltd. Patentee before: BEIJING PINJIE ELECTRONIC TECHNOLOGY Co.,Ltd. |
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