JP6531743B2 - 貼り合わせsoiウェーハの製造方法 - Google Patents
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- JP6531743B2 JP6531743B2 JP2016188216A JP2016188216A JP6531743B2 JP 6531743 B2 JP6531743 B2 JP 6531743B2 JP 2016188216 A JP2016188216 A JP 2016188216A JP 2016188216 A JP2016188216 A JP 2016188216A JP 6531743 B2 JP6531743 B2 JP 6531743B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 26
- 235000012431 wafers Nutrition 0.000 claims description 194
- 238000010438 heat treatment Methods 0.000 claims description 53
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000010703 silicon Substances 0.000 claims description 21
- 229910052710 silicon Inorganic materials 0.000 claims description 21
- 239000012300 argon atmosphere Substances 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 44
- 238000000034 method Methods 0.000 description 18
- 238000000137 annealing Methods 0.000 description 15
- 238000005468 ion implantation Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000012298 atmosphere Substances 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000003746 surface roughness Effects 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
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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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- H01L21/76—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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Description
前記アルゴン雰囲気下での熱処理をバッチ式熱処理炉により行う際に、該バッチ式熱処理炉内に収容された隣り合う前記貼り合わせSOIウェーハの間に、ダミーウェーハとしてシリコンウェーハを配置して熱処理を行うことを特徴とする貼り合わせSOIウェーハの製造方法を提供する。
ボンドウェーハ4及びベースウェーハ1として、両面が研磨された直径300mm、導電型p型、抵抗率10Ω・cm、結晶方位<100>のシリコン単結晶ウェーハを準備した。次に、ベースウェーハ1に対し、酸化温度950℃で1μmの酸化膜2を成長させた。このとき、ウェーハ裏面側にも約1μmの酸化膜2が成長した。
実施例1と同一条件で、連続10バッチの貼り合わせSOIウェーハ10を作製した。ただし、この10バッチの処理においては、最初の1バッチで使用した鏡面研磨ウェーハ12の洗浄や交換を行うことなく、そのまま、その後の連続9バッチの平坦化熱処理に使用して貼り合わせSOIウェーハ10を作製した。10バッチ目に作製された貼り合わせSOIウェーハ10に対して、実施例1と同一の条件でLPD測定を行ったところ、75%の貼り合わせSOIウェーハが合格となった。
実施例2で10バッチの連続処理に使用した鏡面研磨ウェーハ12に洗浄(SC1洗浄及びSC2洗浄)を行った。洗浄後の鏡面研磨ウェーハ12を使用して、実施例1と同一の製造条件で平坦化熱処理まで行い、さらに、実施例1と同一の条件でLPD測定を行った。その結果、82%の貼り合わせSOIウェーハが合格となった。
平坦化熱処理の際に、平坦化を行う100枚の貼り合わせSOIウェーハ10を、バッチ式熱処理炉のウェーハ支持部13に隙間なく充填したこと以外は、実施例1と同一の製造条件で平坦化熱処理まで行い、実施例1と同一の条件でLPD測定を行った。その結果、2%の貼り合わせSOIウェーハのみが合格となった。
平坦化熱処理の際に、平坦化を行う100枚の貼り合わせSOIウェーハ10を、バッチ式熱処理炉のボートに1スロットおきに配置し、それらの貼り合わせSOIウェーハ10の間には鏡面研磨ウェーハ12を配置しなかったこと以外は、実施例1と同一の製造条件で平坦化熱処理まで行った。そして、実施例1と同一の条件でLPD測定を行ったところ、32%の貼り合わせSOIウェーハのみが合格となった。
平坦化熱処理の際に、平坦化を行う50枚の貼り合わせSOIウェーハ10を、バッチ式熱処理炉のボートに2スロットおきにウェーハ間隔を広げた状態で配置し、貼り合わせSOIウェーハ10の間に鏡面研磨ウェーハ12を配置しなかったこと以外は、実施例1と同一の製造条件で平坦化熱処理まで行った。そして、実施例1と同一の条件でLPD測定を行ったところ、60%の貼り合わせSOIウェーハのみが合格となった。比較例3では、合格率は比較例1−2に比べ高かったが、実施例1−3よりは大幅に低く、また、貼り合わせSOIウェーハ10の充填枚数を大幅に減らす必要があるため、実施例に比べ生産性は低下した。
5…SOI層、 6…BOX層、 7…表面酸化膜、
9…剥離後のボンドウェーハ、 10…貼り合わせSOIウェーハ、
12…シリコンウェーハ(鏡面研磨ウェーハ)、 13…ウェーハ支持部、
14…ボートの支持ポール。
Claims (3)
- 裏面に酸化膜を有する貼り合わせSOIウェーハに、アルゴン雰囲気下で熱処理を施してSOI層の表面を平坦化する工程を有する貼り合わせSOIウェーハの製造方法であって、
前記アルゴン雰囲気下での熱処理をバッチ式熱処理炉により行う際に、該バッチ式熱処理炉内に収容された隣り合う前記貼り合わせSOIウェーハの間に、ダミーウェーハとしてシリコンウェーハを配置して熱処理を行うことを特徴とする貼り合わせSOIウェーハの製造方法。 - 前記ダミーウェーハとして用いるシリコンウェーハを、前記ダミーウェーハとして使用したことのない鏡面研磨ウェーハ、又は、前記ダミーウェーハとして使用した後に洗浄を施した鏡面研磨ウェーハとすることを特徴とする請求項1に記載の貼り合わせSOIウェーハの製造方法。
- 前記アルゴン雰囲気下での熱処理の温度を1150℃以上とすることを特徴とする請求項1又は請求項2に記載の貼り合わせSOIウェーハの製造方法。
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JP2016188216A JP6531743B2 (ja) | 2016-09-27 | 2016-09-27 | 貼り合わせsoiウェーハの製造方法 |
US16/331,079 US10600677B2 (en) | 2016-09-27 | 2017-08-22 | Method for manufacturing bonded SOI wafer |
PCT/JP2017/029848 WO2018061523A1 (ja) | 2016-09-27 | 2017-08-22 | 貼り合わせsoiウェーハの製造方法 |
EP17855481.2A EP3522202B1 (en) | 2016-09-27 | 2017-08-22 | Bonded soi wafer manufacturing method |
CN201780055519.1A CN109690733B (zh) | 2016-09-27 | 2017-08-22 | 贴合式soi晶圆的制造方法 |
KR1020197008489A KR102408679B1 (ko) | 2016-09-27 | 2017-08-22 | 접합soi웨이퍼의 제조방법 |
TW106128752A TWI716627B (zh) | 2016-09-27 | 2017-08-24 | 貼合式soi晶圓的製造方法 |
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WO2019064384A1 (ja) * | 2017-09-27 | 2019-04-04 | 株式会社Kokusai Electric | 基板処理装置、半導体装置の製造方法及びプログラム |
JP6927143B2 (ja) * | 2018-05-17 | 2021-08-25 | 信越半導体株式会社 | 貼り合わせsoiウェーハの製造方法 |
US10935722B1 (en) * | 2019-09-14 | 2021-03-02 | Dong Li | CMOS compatible material platform for photonic integrated circuits |
CN110739263A (zh) * | 2019-10-28 | 2020-01-31 | 沈阳硅基科技有限公司 | Soi的制造方法 |
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US6171982B1 (en) | 1997-12-26 | 2001-01-09 | Canon Kabushiki Kaisha | Method and apparatus for heat-treating an SOI substrate and method of preparing an SOI substrate by using the same |
JPH11251563A (ja) * | 1997-12-26 | 1999-09-17 | Canon Inc | Soi基板の熱処理方法及び熱処理装置並びにそれを用いたsoi基板の作製方法 |
JP2002353082A (ja) * | 2001-05-28 | 2002-12-06 | Shin Etsu Handotai Co Ltd | 貼り合わせウェーハの製造方法 |
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JP5521561B2 (ja) * | 2010-01-12 | 2014-06-18 | 信越半導体株式会社 | 貼り合わせウェーハの製造方法 |
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JP2013048218A (ja) * | 2011-07-22 | 2013-03-07 | Semiconductor Energy Lab Co Ltd | Soi基板の作製方法 |
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JP2013143407A (ja) * | 2012-01-06 | 2013-07-22 | Shin Etsu Handotai Co Ltd | 貼り合わせsoiウェーハの製造方法 |
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CN103443910A (zh) * | 2012-04-05 | 2013-12-11 | 国立大学法人东北大学 | 硅晶片的原子级平坦化表面处理方法及热处理装置 |
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JP2016082093A (ja) * | 2014-10-17 | 2016-05-16 | 信越半導体株式会社 | 貼り合わせウェーハの製造方法 |
JP2016201454A (ja) * | 2015-04-09 | 2016-12-01 | 信越半導体株式会社 | Soiウェーハの製造方法 |
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