JP7542053B2 - 多結晶炭化ケイ素で作られたキャリア基板上に単結晶炭化ケイ素の薄層を含む複合構造を製造するためのプロセス - Google Patents
多結晶炭化ケイ素で作られたキャリア基板上に単結晶炭化ケイ素の薄層を含む複合構造を製造するためのプロセス Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims description 65
- 238000004519 manufacturing process Methods 0.000 title claims description 32
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims description 32
- 238000000034 method Methods 0.000 title claims description 26
- 239000002131 composite material Substances 0.000 title claims description 22
- 229910021421 monocrystalline silicon Inorganic materials 0.000 title claims description 10
- 229910021420 polycrystalline silicon Inorganic materials 0.000 title claims description 9
- 238000000151 deposition Methods 0.000 claims description 47
- 230000008021 deposition Effects 0.000 claims description 46
- 150000002500 ions Chemical class 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 238000005229 chemical vapour deposition Methods 0.000 claims description 9
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000002243 precursor Substances 0.000 claims description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 90
- 229910010271 silicon carbide Inorganic materials 0.000 description 24
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 238000002513 implantation Methods 0.000 description 6
- 238000005498 polishing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- -1 hydrogen ions Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000004630 atomic force microscopy Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- FHHJDRFHHWUPDG-UHFFFAOYSA-N peroxysulfuric acid Chemical compound OOS(O)(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-N 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000407 epitaxy Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000007521 mechanical polishing technique Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010070 molecular adhesion Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035945 sensitivity Effects 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
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
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Description
c-SiCドナー基板に埋め込み脆性面を形成し、前記埋め込み脆性面とドナー基板の前面との間に薄層を区切るステップと、
ドナー基板の前面に金属、例えばタングステン又はモリブデンの層を堆積させて、硬化機能を実行するのに十分な厚さのキャリア基板を形成するステップと、
埋め込み脆性面に沿って分離して、一方では金属キャリア基板とc-SiCの薄層を含む複合構造を、他方ではc-SiCドナー基板の残りを形成するステップと、を含む。
単結晶炭化ケイ素で作られた初期基板を用意するステップと、
初期基板上に多結晶炭化ケイ素の中間層を形成するための、1000℃より高い温度での第1の堆積ステップであって、中間層の厚さが1.5ミクロン以上である、ステップと、
中間層を通して軽イオン種を注入して、初期基板に埋め込み脆性面を形成し、前記埋め込み脆性面と中間層との間の薄層を区切るステップと、
中間層上に多結晶炭化ケイ素の追加の層を形成するための、1000℃より高い温度での第2の堆積ステップであって、前記中間層及び追加の層が、キャリア基板を形成し、第2の堆積ステップ中に埋め込み脆性面に沿って分離が起こる、ステップと、を含む。
第1の堆積ステップ及び第2の堆積ステップは、1000℃~1600℃の間、好ましくは1200℃~1600℃の間の温度での化学蒸着によって実行される。
1つの非限定的な例示的な実施によれば、製造プロセスの第1のステップで提供される初期基板11は、4Hポリタイプのc-SiCで作られたウェーハであり、<11-20>軸に対して4.0°±0.5°の配向で、直径150mm、厚さ350μmを有する。
Claims (7)
- 多結晶炭化ケイ素で作られたキャリア基板(20)上に配置された単結晶炭化ケイ素の薄層(10)を含む複合構造(1)を製造するためのプロセスであって、
単結晶炭化ケイ素で作られた初期基板(11)を用意するステップと、
前記初期基板(11)上に多結晶炭化ケイ素の中間層(21)を形成するための、1000℃より高い温度での第1の堆積ステップであって、前記中間層(21)の厚さが1.5ミクロン以上である、ステップと、
前記中間層(21)を通して軽イオン種を注入して、前記初期基板(11)に埋め込み脆性面(12)を形成し、前記埋め込み脆性面(12)と前記中間層(21)との間の前記薄層(10)を区切るステップと、
前記中間層(21)上に多結晶炭化ケイ素の追加の層(22)を形成するための、1000℃より高い温度での第2の堆積ステップであって、前記中間層(21)及び前記追加の層(22)が、前記キャリア基板(20)を形成する、ステップと、を含み、
前記第2の堆積ステップ中に前記埋め込み脆性面(12)に沿って分離が起こる、プロセス。 - 前記第1の堆積ステップ及び前記第2の堆積ステップが、1000℃~1600℃の間の温度での化学蒸着によって実行される、請求項1に記載の製造プロセス。
- 前記第1の堆積ステップ及び/又は前記第2の堆積ステップが、塩素化前駆体から開始して実行される、請求項2に記載の製造プロセス。
- 前記第1の堆積ステップの完了時に、前記中間層(21)の前記厚さが、3ミクロン以上、又はさらには5ミクロン以上である、請求項1~3のいずれか一項に記載の製造プロセス。
- 前記注入される軽イオン種が、水素及び/又はヘリウムから選択される、請求項1~4のいずれか一項に記載の製造プロセス。
- 前記注入される軽イオン種が、水素から選択されると共に、260keV~2000keVの間のエネルギーで、5E16/cm2~1E17/cm2の間の線量で注入される、請求項5に記載の製造プロセス。
- 前記第1の堆積ステップの前に、前記初期基板(11)の前面を脱酸する少なくとも1つの動作を含む、前記初期基板(11)を調製するステップを含む、請求項1~6のいずれか一項に記載の製造プロセス。
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FR1908840A FR3099637B1 (fr) | 2019-08-01 | 2019-08-01 | procédé de fabrication d’unE structure composite comprenant une couche mince en Sic monocristallin sur un substrat support en sic polycristallin |
PCT/FR2020/051159 WO2021019137A1 (fr) | 2019-08-01 | 2020-07-02 | Procede de fabrication d'une structure composite comprenant une couche mince en sic monocristallin sur un substrat support en sic polycristallin |
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FR3127843B1 (fr) * | 2021-10-05 | 2023-09-08 | Soitec Silicon On Insulator | ProcÉdÉ de transfert d’une couche de SiC monocristallin sur un support en SiC polycristallin utilisant une couche intermÉdiaire de SiC polycristallin |
CN115662881B (zh) * | 2022-12-21 | 2023-03-17 | 青禾晶元(天津)半导体材料有限公司 | 一种复合碳化硅衬底及其制备方法 |
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JP2010541230A (ja) | 2007-09-27 | 2010-12-24 | エス.オー.アイ.テック、シリコン、オン、インシュレター、テクノロジーズ | 基板とその一方の面上に堆積させた層とを含む構造体の製造方法 |
WO2016006663A1 (ja) | 2014-07-10 | 2016-01-14 | 株式会社豊田自動織機 | 半導体基板および半導体基板の製造方法 |
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JP2017057102A (ja) | 2015-09-15 | 2017-03-23 | 信越化学工業株式会社 | SiC複合基板の製造方法 |
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DE4234508C2 (de) * | 1992-10-13 | 1994-12-22 | Cs Halbleiter Solartech | Verfahren zur Herstellung eines Wafers mit einer monokristallinen Siliciumcarbidschicht |
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CN114175212A (zh) | 2022-03-11 |
KR20220038695A (ko) | 2022-03-29 |
US20220270875A1 (en) | 2022-08-25 |
KR102711398B1 (ko) | 2024-09-30 |
EP4008020C0 (fr) | 2024-01-10 |
FR3099637A1 (fr) | 2021-02-05 |
CN114175212B (zh) | 2025-02-14 |
WO2021019137A1 (fr) | 2021-02-04 |
JP2022542224A (ja) | 2022-09-30 |
EP4008020A1 (fr) | 2022-06-08 |
US12033854B2 (en) | 2024-07-09 |
TWI844701B (zh) | 2024-06-11 |
EP4008020B1 (fr) | 2024-01-10 |
FR3099637B1 (fr) | 2021-07-09 |
TW202121505A (zh) | 2021-06-01 |
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