CN102569055A - 一种SiC单晶平整度的调整方法—湿法刻蚀 - Google Patents
一种SiC单晶平整度的调整方法—湿法刻蚀 Download PDFInfo
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- CN102569055A CN102569055A CN 201010588030 CN201010588030A CN102569055A CN 102569055 A CN102569055 A CN 102569055A CN 201010588030 CN201010588030 CN 201010588030 CN 201010588030 A CN201010588030 A CN 201010588030A CN 102569055 A CN102569055 A CN 102569055A
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- 238000000034 method Methods 0.000 title claims abstract description 65
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 239000013078 crystal Substances 0.000 title claims abstract description 37
- 238000001039 wet etching Methods 0.000 title claims abstract description 18
- 229910010271 silicon carbide Inorganic materials 0.000 title abstract description 42
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000001301 oxygen Substances 0.000 claims abstract description 45
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 45
- 238000005530 etching Methods 0.000 claims abstract description 33
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- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims abstract description 13
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- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 53
- 150000003839 salts Chemical class 0.000 claims description 26
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 19
- 229910052710 silicon Inorganic materials 0.000 claims description 19
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- 238000010438 heat treatment Methods 0.000 claims description 9
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- 239000000654 additive Substances 0.000 claims description 8
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- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 7
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 7
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- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims 2
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- -1 Boratex Chemical compound 0.000 claims 1
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- 229940072033 potash Drugs 0.000 claims 1
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- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 claims 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 53
- 239000000758 substrate Substances 0.000 description 8
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
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Abstract
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010588030.0A CN102569055B (zh) | 2010-12-14 | 2010-12-14 | 一种碳化硅单晶晶片表面及平整度的调整方法 |
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| CN201010588030.0A CN102569055B (zh) | 2010-12-14 | 2010-12-14 | 一种碳化硅单晶晶片表面及平整度的调整方法 |
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| CN102569055A true CN102569055A (zh) | 2012-07-11 |
| CN102569055B CN102569055B (zh) | 2014-05-21 |
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| CN103088426A (zh) * | 2013-01-23 | 2013-05-08 | 保定科瑞晶体有限公司 | 一种减少碳化硅晶体籽晶生长面缺陷的方法 |
| CN103576462A (zh) * | 2012-07-19 | 2014-02-12 | 无锡华润上华半导体有限公司 | 用于对背面湿法腐蚀后的晶片的正面进行光刻方法 |
| CN103715069A (zh) * | 2013-12-02 | 2014-04-09 | 中国电子科技集团公司第五十五研究所 | 一种减少碳化硅外延薄膜中缺陷的方法 |
| CN103715065A (zh) * | 2013-12-30 | 2014-04-09 | 国家电网公司 | 一种平缓光滑侧壁形貌的SiC刻蚀方法 |
| CN103866398A (zh) * | 2014-03-26 | 2014-06-18 | 山东天岳晶体材料有限公司 | 一种碳化硅晶片腐蚀的方法和装置 |
| CN104016591A (zh) * | 2014-06-18 | 2014-09-03 | 蓝思科技股份有限公司 | 平板玻璃低反射蒙砂工艺 |
| US8860040B2 (en) | 2012-09-11 | 2014-10-14 | Dow Corning Corporation | High voltage power semiconductor devices on SiC |
| CN104981892A (zh) * | 2013-06-04 | 2015-10-14 | 新日铁住金株式会社 | 外延碳化硅晶片用碳化硅单晶基板的制造方法以及外延碳化硅晶片用碳化硅单晶基板 |
| US9165779B2 (en) | 2012-10-26 | 2015-10-20 | Dow Corning Corporation | Flat SiC semiconductor substrate |
| CN104993030A (zh) * | 2015-06-08 | 2015-10-21 | 国网智能电网研究院 | 一种p型低缺陷碳化硅外延片的制备方法 |
| US9738991B2 (en) | 2013-02-05 | 2017-08-22 | Dow Corning Corporation | Method for growing a SiC crystal by vapor deposition onto a seed crystal provided on a supporting shelf which permits thermal expansion |
| US9797064B2 (en) | 2013-02-05 | 2017-10-24 | Dow Corning Corporation | Method for growing a SiC crystal by vapor deposition onto a seed crystal provided on a support shelf which permits thermal expansion |
| CN108018605A (zh) * | 2016-11-03 | 2018-05-11 | 北京七星华创电子股份有限公司 | 籽晶处理方法及碳化硅晶体生长方法 |
| US10002760B2 (en) | 2014-07-29 | 2018-06-19 | Dow Silicones Corporation | Method for manufacturing SiC wafer fit for integration with power device manufacturing technology |
| JP2018098455A (ja) * | 2016-12-16 | 2018-06-21 | 国立大学法人埼玉大学 | エッチング方法 |
| JP2018133489A (ja) * | 2017-02-16 | 2018-08-23 | 国立大学法人埼玉大学 | エッチング方法 |
| CN109321980A (zh) * | 2018-10-16 | 2019-02-12 | 山东天岳先进材料科技有限公司 | 一种高平整度、低损伤大直径单晶碳化硅衬底 |
| CN109628999A (zh) * | 2017-10-06 | 2019-04-16 | 环球晶圆股份有限公司 | 碳化硅晶体及其制造方法 |
| CN110079862A (zh) * | 2014-03-28 | 2019-08-02 | 住友电气工业株式会社 | 碳化硅单晶衬底、碳化硅外延衬底及它们的制造方法 |
| KR20190105634A (ko) * | 2017-02-16 | 2019-09-17 | 신에츠 폴리머 가부시키가이샤 | 에칭 방법 |
| CN110722692A (zh) * | 2019-10-12 | 2020-01-24 | 江苏澳洋顺昌集成电路股份有限公司 | 一种控制研磨产品bow值加工的方法 |
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| CN111433394A (zh) * | 2017-12-08 | 2020-07-17 | 住友电气工业株式会社 | 碳化硅衬底 |
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| CN111433394A (zh) * | 2017-12-08 | 2020-07-17 | 住友电气工业株式会社 | 碳化硅衬底 |
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