JP4549063B2 - 炭化珪素薄層の受け取り基板への最適移載方法 - Google Patents
炭化珪素薄層の受け取り基板への最適移載方法 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims abstract description 116
- 238000000034 method Methods 0.000 title claims abstract description 78
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 31
- 238000012546 transfer Methods 0.000 title description 8
- 238000002513 implantation Methods 0.000 claims abstract description 34
- 150000002500 ions Chemical class 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002994 raw material Substances 0.000 claims description 50
- 238000005468 ion implantation Methods 0.000 claims description 23
- 238000000926 separation method Methods 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000010849 ion bombardment Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000010070 molecular adhesion Effects 0.000 claims description 5
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 5
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 230000032798 delamination Effects 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 3
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 3
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052732 germanium Inorganic materials 0.000 claims description 3
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 3
- 238000010884 ion-beam technique Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 229910052594 sapphire Inorganic materials 0.000 claims description 3
- 239000010980 sapphire Substances 0.000 claims description 3
- 238000004857 zone melting Methods 0.000 claims description 3
- 229910002601 GaN Inorganic materials 0.000 claims description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 4
- 238000004299 exfoliation Methods 0.000 abstract description 2
- 230000003746 surface roughness Effects 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 44
- 230000008569 process Effects 0.000 description 22
- 239000013078 crystal Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 16
- 238000002474 experimental method Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000012779 reinforcing material Substances 0.000 description 7
- 238000007730 finishing process Methods 0.000 description 6
- 238000000137 annealing Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 230000005465 channeling Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- -1 boron ions Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- 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
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
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- H01L21/76254—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques with separation/delamination along an ion implanted layer, e.g. Smart-cut, Unibond
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- H01L21/18—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 elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/20—Deposition of semiconductor materials on a substrate, e.g. epitaxial growth solid phase epitaxy
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Description
原材料基板の前面である平坦面に主にH+イオンによって注入エネルギーE及び注入量Dの衝撃を与えて該イオンの平均注入深さp近傍の深さ位置に前記薄層と前記基板の残余部分との間の境界を形成する脆化領域を形成する工程と、
前記受け取り基板を前記前面に結合させる工程と、
前記脆化領域に沿って前記薄層を前記原材料基板の残余部分から分離する工程とを含む方法において、
前記脆化領域を最適化された様式で脆化するため、注入量DをH+イオン数/cm2の単位で表し、keVで表した注入エネルギーEを95keV以上とするとき、下記の不等式
[(E×1・1014+5・1016)/1.1] ≦ D ≦ [(E×1・1014+5・1016)/0.9]
に従ってH+イオンの注入を実行し、且つ、
結合工程の後に、前記受け取り基板へ移載されていない原材料基板における薄層の領域を完全又は殆ど完全に剥離するに充分なサーマルバジェット(thermal budget)を付与することを特徴とする方法によって達成される。
厚さ約50nmの酸化珪素アモルファス層で被覆された8°の無配向性単結晶炭化珪素SiC4H基板("SiC4H 8°off-axis"として当業者に公知)の前面に対してH+イオン注入を実行した。
D=E×1・1014+5・1016 (1)
−ε×D≦D−(E×1・1014+5・1016)≦ε×D (2)
−0.1×D≦D−(E×1・1014+5・1016)≦0.1×D
[(E×1・1014+5・1016)/1.1] ≦ D ≦ [(E×1・1014+5・1016)/0.9]
Claims (15)
- 同一材料の原材料基板(1)から派生した単結晶炭化珪素薄層(100)を受け取り基板(4)へ移載する方法であって、原材料基板(1)の残余部分(10)の再利用を図るために、以下の工程、即ち、
原材料基板(1)の前面である平坦面(2)にH+イオンによって注入エネルギーE及び注入量Dの衝撃を与えて該イオンの平均注入深さp近傍の深さ位置に前記薄層(100)と前記基板(1)の残余部分(10)との間の境界を形成する脆化領域(5)を形成する工程と、
前記受け取り基板(4)を前記前面(2)に結合させる工程と、
前記脆化領域(5)に沿って前記薄層(100)を前記原材料基板(1)の残余部分(10)から分離する工程とを含む方法において、
前記脆化領域(5)を最適化された様式で脆化するため、注入量DをH+イオン数/cm2の単位で表し、keVで表した注入エネルギーEを95keV以上とするとき、下記の不等式
[(E×1×1014+5×1016)/1.1] ≦ D ≦ [(E×1×1014+5×1016)/0.9]
に従ってH+イオンの注入を実行し、且つ、
結合工程の後に、前記受け取り基板(4)へ移載されていない原材料基板(1)における薄層(100)の領域(12)を完全又は殆ど完全に剥離するに必要なサーマルバジェットの付与を700℃以上の温度で行うことを特徴とする炭化珪素薄層の受け取り基板への最適移載方法。 - 注入イオンを専らH+イオンとすることを特徴とする請求項1に記載の方法。
- イオンビームに晒されている間、原材料基板(1)を意図的に加熱することなくH+イオンの注入を実行することを特徴とする請求項1又は2に記載の方法。
- 原材料基板(1)が無配向の単結晶炭化珪素からなることを特徴とする請求項1〜3のいずれか1項に記載の方法。
- 先ず外部機械的応力の付与により前記最適化された脆化領域(5)に沿って分離を実行し、次いで受け取り基板(4)へ移載されていない薄層(100)の領域(12)を完全又は殆ど完全に剥離するに必要なサーマルバジェットの付与を700℃以上の温度で行うことを特徴とする請求項1〜4のいずれか1項に記載の方法。
- 最適化された脆化領域(5)に沿った分離と、受け取り基板(4)へ移載されていない薄層(100)の領域(12)の完全又は殆ど完全な剥離とを、700℃以上の温度で行うサーマルバジェットの付与により同時に行うことを特徴とする請求項1〜5のいずれか1項に記載の方法。
- 薄層(100)から前記領域(12)を完全又は殆ど完全に剥離するに必要なサーマルバジェットの付与を800℃以上の温度で行うことを特徴とする請求項1〜6のいずれか1項に記載の方法。
- イオン衝撃をランダムに実行することを特徴とする請求項1〜7のいずれか1項に記載の方法。
- イオン衝撃工程の前に、原材料基板(1)を50nm以下の厚さのアモルファス材料層(20)で被覆しておくことを特徴とする請求項1〜8のいずれか1項に記載の方法。
- 原材料基板(1)の前面(2)への受け取り基板(4)の結合を分子付着によって行うことを特徴とする請求項1〜9のいずれか1項に記載の方法。
- 前面(2)と受け取り基板(4)の接触面(40)との少なくとも一方の面を中間結合層(6)で被覆しておくことを特徴とする請求項10に記載の方法。
- アモルファス材料層(20)及び/又は中間結合層(6)を酸化珪素(SiO2)又は窒化珪素(Si3N4)から選択された材料で形成することを特徴とする請求項9又は11に記載の方法。
- 受け取り基板(4)を、シリコン、炭化珪素、窒化ガリウム、窒化アルミニウム、サファイア、リン化インジウム、ヒ化ガリウム又はゲルマニウムから選択することを特徴とする請求項1〜12のいずれか1項に記載の方法。
- 受け取り基板(4)を低酸素含量のゾーン溶融法によって得たシリコン基板とすることを特徴とする請求項1〜13のいずれか1項に記載の方法。
- 分離後に得られた原材料基板(1)の残余部分(10)の前面(11)に対する仕上げ処理工程Fを更に含むことを特徴とする請求項1〜14のいずれか1項に記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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FR0200813A FR2835097B1 (fr) | 2002-01-23 | 2002-01-23 | Procede optimise de report d'une couche mince de carbure de silicium sur un substrat d'accueil |
FR0200813 | 2002-01-23 | ||
PCT/EP2003/000692 WO2003063213A2 (en) | 2002-01-23 | 2003-01-21 | Optimized method of transfer of a thin layer of silicon carbide to a receiving substrate |
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JP2005516392A JP2005516392A (ja) | 2005-06-02 |
JP2005516392A6 JP2005516392A6 (ja) | 2005-08-11 |
JP4549063B2 true JP4549063B2 (ja) | 2010-09-22 |
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US (2) | US6974760B2 (ja) |
EP (1) | EP1468445B1 (ja) |
JP (1) | JP4549063B2 (ja) |
KR (1) | KR100767138B1 (ja) |
CN (1) | CN100576448C (ja) |
AT (1) | ATE336077T1 (ja) |
DE (1) | DE60307419T2 (ja) |
FR (1) | FR2835097B1 (ja) |
TW (1) | TWI266362B (ja) |
WO (1) | WO2003063213A2 (ja) |
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CN1669122A (zh) | 2005-09-14 |
US20050032330A1 (en) | 2005-02-10 |
DE60307419T2 (de) | 2007-03-29 |
EP1468445A2 (en) | 2004-10-20 |
FR2835097B1 (fr) | 2005-10-14 |
WO2003063213A2 (en) | 2003-07-31 |
DE60307419D1 (de) | 2006-09-21 |
ATE336077T1 (de) | 2006-09-15 |
TWI266362B (en) | 2006-11-11 |
US6974760B2 (en) | 2005-12-13 |
KR100767138B1 (ko) | 2007-10-15 |
US20050266659A1 (en) | 2005-12-01 |
FR2835097A1 (fr) | 2003-07-25 |
WO2003063213A3 (en) | 2004-01-15 |
US7262113B2 (en) | 2007-08-28 |
EP1468445B1 (en) | 2006-08-09 |
KR20040077795A (ko) | 2004-09-06 |
CN100576448C (zh) | 2009-12-30 |
TW200306620A (en) | 2003-11-16 |
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