JP2014506727A - 半導体素子及び半導体結晶成長法 - Google Patents
半導体素子及び半導体結晶成長法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 103
- 238000002109 crystal growth method Methods 0.000 title claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 100
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 54
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 48
- 239000013078 crystal Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 16
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 8
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 8
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- 150000001722 carbon compounds Chemical class 0.000 claims description 4
- NEXSMEBSBIABKL-UHFFFAOYSA-N hexamethyldisilane Chemical compound C[Si](C)(C)[Si](C)(C)C NEXSMEBSBIABKL-UHFFFAOYSA-N 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 4
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 4
- 239000005055 methyl trichlorosilane Substances 0.000 claims description 4
- JLUFWMXJHAVVNN-UHFFFAOYSA-N methyltrichlorosilane Chemical compound C[Si](Cl)(Cl)Cl JLUFWMXJHAVVNN-UHFFFAOYSA-N 0.000 claims description 4
- 239000001294 propane Substances 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 claims description 4
- 239000005052 trichlorosilane Substances 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 208000012868 Overgrowth Diseases 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 238000001338 self-assembly Methods 0.000 claims 2
- 238000000407 epitaxy Methods 0.000 claims 1
- FFUAGWLWBBFQJT-UHFFFAOYSA-N hexamethyldisilazane Chemical compound C[Si](C)(C)N[Si](C)(C)C FFUAGWLWBBFQJT-UHFFFAOYSA-N 0.000 claims 1
- 230000007547 defect Effects 0.000 description 17
- 239000000463 material Substances 0.000 description 11
- 238000001657 homoepitaxy Methods 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001451 molecular beam epitaxy Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000001947 vapour-phase growth Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
- H01L29/16—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by the materials of which they are formed including, apart from doping materials or other impurities, only elements of Group IV of the Periodic System
- H01L29/1608—Silicon carbide
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- 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
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02373—Group 14 semiconducting materials
- H01L21/02378—Silicon carbide
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- H01L21/02518—Deposited layers
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Abstract
【選択図】図6
Description
Claims (30)
- ベース基板と、
前記ベース基板上に形成されるパターンと、
前記ベース基板に形成されるバッファ層と、
前記バッファ層に形成されるエピタキシャル層とを含み、
前記パターンは自己組織化されたパターンである半導体素子。 - 前記ベース基板及び前記パターンのそれぞれは、炭化ケイ素で形成された、請求項1に記載の半導体素子。
- 前記パターンは、前記ベース基板から垂直に突出する、請求項1に記載の半導体素子。
- 前記突出する形状は、楕円錐形状である、請求項3に記載の半導体素子。
- 前記楕円錐形状は、直径の長軸が10nm乃至30nmであり、高さが100nm以下である、請求項4に記載の半導体素子。
- 前記バッファ層は、前記パターンと前記パターンに隣接するパターンの間に露出した前記基板の表面のみに形成される、請求項1に記載の半導体素子。
- 前記バッファ層は、炭化ケイ素で形成された、請求項6に記載の半導体素子。
- 炭化ケイ素基板を洗浄する段階と、
前記炭化ケイ素基板に自己組織化によってパターンを形成する段階と、
前記炭化ケイ素基板にバッファ層を形成する段階と、
前記バッファ層にエピタキシャル層を形成する段階と、
を含む半導体結晶成長法。 - 前記炭化ケイ素基板を洗浄する段階及び前記パターンを形成する段階は、メタン、エタン、プロペン、フルオロメタン及びハイドロフルオロカーボンのような炭素化合物気体のうち少なくとも一つを含む気体雰囲気でなされる、請求項8に記載の半導体結晶成長法。
- 前記パターンを形成する段階は、湿度30%以上でなされる、請求項9に記載の半導体結晶成長法。
- 前記パターンを形成する段階は、20分乃至30分の間維持される、請求項10に記載の半導体結晶成長法。
- 前記バッファ層を形成する段階は、エピタキシャル沿面成長法(Epitaxy Lateral Over Growth、ELOG)によって遂行される、請求項8に記載の半導体結晶成長法。
- 前記エピタキシャル層を形成する段階は、エピタキシャル成長法によって遂行される、請求項12に記載の半導体結晶成長法。
- 前記バッファ層及び前記エピタキシャル層を形成する段階は、1600℃以上の温度で、エタン、メタン、プロパン及び水素気体を含む雰囲気において遂行される、請求項13に記載の半導体結晶成長法。
- パターン溝を含むベース基板と、
前記ベース基板上のエピタキシャル層とを含む半導体素子。 - 前記パターン溝は、深さが5乃至10nmである、請求項15に記載の半導体素子。
- 前記パターン溝は、幅が1乃至10nmである、請求項15に記載の半導体素子。
- 前記エピタキシャル層は、前記ベース基板に直接形成される、請求項15に記載の半導体素子。
- 前記ベース基板及び前記エピタキシャル層のそれぞれは、炭化ケイ素により形成される、請求項15に記載の半導体素子。
- 炭化ケイ素基板を洗浄する段階と、
前記炭化ケイ素基板に自己組織化によって突起を形成する段階と、
前記炭化ケイ素基板にパターン溝を形成する段階と、
前記炭化ケイ素基板にエピタキシャル層を形成する段階と、を含む半導体結晶成長法。 - 前記炭化ケイ素基板を洗浄する段階及び前記突起を形成する段階は、炭素数が1乃至6である炭化水素気体のうち少なくとも一つを含む気体雰囲気でなされる、請求項20に記載の半導体結晶成長法。
- 前記突起を形成する段階は、チャンバ内で湿度30%以上でなされる、請求項20に記載の半導体結晶成長法。
- 前記突起を形成する段階は、10分乃至15分の時間継続する、請求項22に記載の半導体結晶成長法。
- 前記突起を形成する段階は、100℃乃至300℃の温度でなされる、請求項23に記載の半導体結晶成長法。
- 前記パターン溝を形成する段階は、蝕刻する段階を含む、請求項20に記載の半導体結晶成長法。
- 前記パターン溝を形成する段階は、水素、塩素、シラン(silane)、塩化水素、炭素数が1乃至6である炭化水素気体のうち少なくとも一つを含む気体雰囲気でなされる、請求項25に記載の半導体結晶成長法。
- 前記パターン溝を形成する段階は、温度1200℃乃至1500℃でなされる、請求項26に記載の半導体結晶成長法。
- 前記パターン溝を形成する段階は、5乃至15分の時間継続する、請求項13に記載の半導体結晶成長法。
- 前記エピタキシャル層を形成する段階は、水素、塩化水素、シラン、炭素数が1乃至6である炭化水素、メチルトリクロロシラン(methyl trichlorosilane、MTS)、トリクロロシラン(trichlorosilane、TCS)及びヘキサメチルジシラン(hexamethyldisilane、HMDS)気体のうち少なくとも一つを含む気体雰囲気でなされる、請求項20に記載の半導体結晶成長法。
- 前記エピタキシャル層形成する段階は、温度1500℃乃至1700℃でなされる、請求項29に記載の半導体結晶成長法。
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KR1020110010962A KR101189376B1 (ko) | 2011-02-08 | 2011-02-08 | 반도체 소자 및 반도체 결정 성장 방법 |
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PCT/KR2012/000571 WO2012102539A2 (en) | 2011-01-25 | 2012-01-20 | Semiconductor device and method for growing semiconductor crystal |
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US9525030B2 (en) | 2011-06-23 | 2016-12-20 | Lg Innotek Co., Ltd. | Semiconductor device and method for growing semiconductor crystal |
US10249757B2 (en) | 2016-12-21 | 2019-04-02 | Samsung Electronics Co., Ltd. | Semiconductor device and method of fabricating the same |
CN110620039A (zh) * | 2019-09-25 | 2019-12-27 | 福建北电新材料科技有限公司 | 图案化的碳化硅籽晶及其加工方法和应用、碳化硅晶体、外延层、半导体器件 |
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US9269776B2 (en) | 2016-02-23 |
WO2012102539A3 (en) | 2012-09-20 |
EP2668662B1 (en) | 2019-07-03 |
CN103443902B (zh) | 2016-10-26 |
US20140054610A1 (en) | 2014-02-27 |
WO2012102539A2 (en) | 2012-08-02 |
EP2668662A2 (en) | 2013-12-04 |
JP6054884B2 (ja) | 2016-12-27 |
EP2668662A4 (en) | 2014-08-06 |
CN103443902A (zh) | 2013-12-11 |
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