JP2006525651A - low−k誘電体の最上部に反射防止特性を持つキャップ層の形成法 - Google Patents
low−k誘電体の最上部に反射防止特性を持つキャップ層の形成法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 77
- 230000003667 anti-reflective effect Effects 0.000 title description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000003989 dielectric material Substances 0.000 claims abstract description 37
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 29
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 29
- 238000000151 deposition Methods 0.000 claims abstract description 28
- 230000008021 deposition Effects 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910000077 silane Inorganic materials 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 6
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- 229910052751 metal Inorganic materials 0.000 claims description 48
- 239000002184 metal Substances 0.000 claims description 48
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 24
- 239000010703 silicon Substances 0.000 claims description 24
- 229910052710 silicon Inorganic materials 0.000 claims description 24
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 239000011241 protective layer Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000000059 patterning Methods 0.000 claims description 9
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 230000002950 deficient Effects 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 3
- 238000007517 polishing process Methods 0.000 abstract 1
- 230000008569 process Effects 0.000 description 39
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 30
- 239000010949 copper Substances 0.000 description 30
- 229910052802 copper Inorganic materials 0.000 description 30
- 239000000758 substrate Substances 0.000 description 21
- 230000002829 reductive effect Effects 0.000 description 17
- 239000000463 material Substances 0.000 description 16
- 229920002120 photoresistant polymer Polymers 0.000 description 15
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- 239000006117 anti-reflective coating Substances 0.000 description 7
- 238000005137 deposition process Methods 0.000 description 7
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- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 7
- 229910052581 Si3N4 Inorganic materials 0.000 description 6
- 239000002243 precursor Substances 0.000 description 6
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229910052715 tantalum Inorganic materials 0.000 description 5
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
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- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
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- 230000008570 general process Effects 0.000 description 1
- 238000012625 in-situ measurement Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010421 standard material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- PQDJYEQOELDLCP-UHFFFAOYSA-N trimethylsilane Chemical compound C[SiH](C)C PQDJYEQOELDLCP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
Claims (18)
- low-k誘電体層上に二酸化シリコン層231を形成することにより、前記low-k誘電体材料を有する誘電体層206上にマルチ層スタック230を形成し、
前記二酸化シリコン層を形成する間にシリコンリッチオキシナイトライド層232を形成し、これにより、前記low-k誘電体層からの反射光を低減するよう前記マルチ層スタック230の少なくとも1つの光学特性を調整する、方法。 - 前記二酸化シリコン層231はシランから蒸着される、請求項1記載の方法。
- 前記シリコンリッチオキシナイトライド層232は、前記二酸化シリコン層231の形成後に蒸着雰囲気を変えることにより形成される、請求項1記載の方法。
- 前記誘電体層206に形成される前記二酸化シリコン層231の厚みは、約20−120nmの範囲内である、請求項1記載の方法。
- 前記シリコンリッチオキシナイトライド層232の厚みは、約30−90nmの範囲内である、請求項1記載の方法。
- 前記光学特性は前記シリコンリッチオキシナイトライド層232のシリコン量を変えることにより調整される、請求項1記載の方法。
- 前記シリコン量は蒸着雰囲気においてシラン/窒素酸化物(N2O)の比率を調整することにより変えられる、請求項6記載の方法。
- 前記シリコンリッチオキシナイトライド層232の表面領域において、窒素欠乏の保護層233を形成することを更に有する、請求項1記載の方法。
- 前記保護層233は窒素酸化物(N2O)のプラズマ環境へ露光することにより形成される、請求項8記載の方法。
- 前記窒素酸化物(N2O)のプラズマ環境は、前記シリコンリッチオキシナイトライド層232を蒸着する間に用いられるシランの供給を中止することにより作られる、請求項9記載の方法。
- 前記保護層233の厚みは約1−5nmの範囲内である、請求項8記載の方法。
- 前記シリコンリッチオキシナイトライド層232上にレジストマスク208を形成するステップを更に含む、請求項1記載の方法。
- 前記誘電体層206に凹部を形成するために、前記レジストマスク208を用いて前記誘電体層206をパターニングするステップを更に有する、請求項12記載の方法。
- low-k誘電体材料に金属領域を形成する方法であって、
プラズマ環境において、前記二酸化シリコンベースのマルチ層の光学特性を制御する前記low-k誘電体材料を含む層206上に、二酸化シリコンベースのマルチ層230を蒸着し、
凹部213を形成し、前記マルチ層230は特定の波長に対する反射光を低減するものであり、
前記凹部を金属212で埋め、
化学機械的研磨により余分な金属及び前記マルチ層の一部を除去する、
low-k誘電体材料に金属領域を形成する方法。 - 前記二酸化シリコンベースのマルチ層230が少なくとも部分的にシランから蒸着される、請求項14記載の方法。
- シリコンリッチオキシナイトライド層232が、前記二酸化シリコンベースのマルチ層230を形成する間に蒸着雰囲気を変えることにより、マルチ層230に形成される、請求項14記載の方法。
- 前記シリコンリッチオキシナイトライド層232の厚みが、約30−90nmの範囲内である、請求項14記載の方法。
- 前記光学特性が前記シリコンリッチオキシナイトライド層232のシリコン量を変えることにより調整される、請求項16記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10260619A DE10260619B4 (de) | 2002-12-23 | 2002-12-23 | Verfahren zur Herstellung einer Deckschicht mit antireflektierenden Eigenschaften auf einem Dielektrikum mit kleinem ε |
US10/463,910 US7030044B2 (en) | 2002-12-23 | 2003-06-16 | Method of forming a cap layer having anti-reflective characteristics on top of a low-k dielectric |
PCT/US2003/035272 WO2004061949A1 (en) | 2002-12-23 | 2003-11-06 | Method of forming a cap layer having anti-reflective characteristics on top of a low-k dielectric |
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JP2006525651A true JP2006525651A (ja) | 2006-11-09 |
JP2006525651A5 JP2006525651A5 (ja) | 2006-12-28 |
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JP2005508530A Pending JP2006525651A (ja) | 2002-12-23 | 2003-11-06 | low−k誘電体の最上部に反射防止特性を持つキャップ層の形成法 |
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EP (1) | EP1576664A1 (ja) |
JP (1) | JP2006525651A (ja) |
KR (1) | KR101127240B1 (ja) |
AU (1) | AU2003287518A1 (ja) |
WO (1) | WO2004061949A1 (ja) |
Cited By (1)
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WO2015068251A1 (ja) * | 2013-11-08 | 2015-05-14 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
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JP2010171064A (ja) * | 2009-01-20 | 2010-08-05 | Panasonic Corp | 半導体装置及びその製造方法 |
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JP2001015506A (ja) * | 1999-06-29 | 2001-01-19 | Nec Yamagata Ltd | プラズマcvdによる反射防止膜の製造方法 |
JP2002526916A (ja) * | 1998-10-01 | 2002-08-20 | アプライド マテリアルズ インコーポレイテッド | ダマシン用途の低κシリコンカーバイドバリア層、エッチストップ及び反射防止被膜のインシチュウ堆積 |
JP2002329779A (ja) * | 2001-04-27 | 2002-11-15 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
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US6380096B2 (en) * | 1998-07-09 | 2002-04-30 | Applied Materials, Inc. | In-situ integrated oxide etch process particularly useful for copper dual damascene |
US6156640A (en) * | 1998-07-14 | 2000-12-05 | United Microelectronics Corp. | Damascene process with anti-reflection coating |
US6103456A (en) * | 1998-07-22 | 2000-08-15 | Siemens Aktiengesellschaft | Prevention of photoresist poisoning from dielectric antireflective coating in semiconductor fabrication |
US6294459B1 (en) * | 1998-09-03 | 2001-09-25 | Micron Technology, Inc. | Anti-reflective coatings and methods for forming and using same |
US6255717B1 (en) * | 1998-11-25 | 2001-07-03 | Advanced Micro Devices, Inc. | Shallow trench isolation using antireflection layer |
US6291363B1 (en) * | 1999-03-01 | 2001-09-18 | Micron Technology, Inc. | Surface treatment of DARC films to reduce defects in subsequent cap layers |
US20020024139A1 (en) * | 2000-02-04 | 2002-02-28 | Chan Simon S. | Combined capping layer and ARC for CU interconnects |
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2003
- 2003-11-06 AU AU2003287518A patent/AU2003287518A1/en not_active Abandoned
- 2003-11-06 KR KR1020057011804A patent/KR101127240B1/ko not_active IP Right Cessation
- 2003-11-06 JP JP2005508530A patent/JP2006525651A/ja active Pending
- 2003-11-06 WO PCT/US2003/035272 patent/WO2004061949A1/en active Application Filing
- 2003-11-06 EP EP03781760A patent/EP1576664A1/en not_active Withdrawn
Patent Citations (3)
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JP2002526916A (ja) * | 1998-10-01 | 2002-08-20 | アプライド マテリアルズ インコーポレイテッド | ダマシン用途の低κシリコンカーバイドバリア層、エッチストップ及び反射防止被膜のインシチュウ堆積 |
JP2001015506A (ja) * | 1999-06-29 | 2001-01-19 | Nec Yamagata Ltd | プラズマcvdによる反射防止膜の製造方法 |
JP2002329779A (ja) * | 2001-04-27 | 2002-11-15 | Mitsubishi Electric Corp | 半導体装置およびその製造方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2015068251A1 (ja) * | 2013-11-08 | 2015-05-14 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
US9281276B2 (en) | 2013-11-08 | 2016-03-08 | Renesas Electronics Corporation | Semiconductor device and manufacturing method of the same |
US9559052B2 (en) | 2013-11-08 | 2017-01-31 | Renesas Electronics Corporation | Semiconductor device and manufacturing method of the same |
JPWO2015068251A1 (ja) * | 2013-11-08 | 2017-03-09 | ルネサスエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
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EP1576664A1 (en) | 2005-09-21 |
WO2004061949A1 (en) | 2004-07-22 |
AU2003287518A1 (en) | 2004-07-29 |
KR101127240B1 (ko) | 2012-03-29 |
KR20050093797A (ko) | 2005-09-23 |
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