JP2010004082A - 半導体素子の製造方法 - Google Patents
半導体素子の製造方法 Download PDFInfo
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 64
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 239000010410 layer Substances 0.000 claims abstract description 107
- 239000011229 interlayer Substances 0.000 claims abstract description 78
- 239000003990 capacitor Substances 0.000 claims abstract description 45
- 239000012790 adhesive layer Substances 0.000 claims description 76
- 230000004888 barrier function Effects 0.000 claims description 67
- 238000000034 method Methods 0.000 claims description 54
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 38
- 229920005591 polysilicon Polymers 0.000 claims description 38
- 229910052741 iridium Inorganic materials 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 32
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 32
- 239000000758 substrate Substances 0.000 claims description 23
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 17
- 229910052710 silicon Inorganic materials 0.000 claims description 17
- 239000010703 silicon Substances 0.000 claims description 17
- 238000000059 patterning Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 6
- JMGZEFIQIZZSBH-UHFFFAOYSA-N Bioquercetin Natural products CC1OC(OCC(O)C2OC(OC3=C(Oc4cc(O)cc(O)c4C3=O)c5ccc(O)c(O)c5)C(O)C2O)C(O)C(O)C1O JMGZEFIQIZZSBH-UHFFFAOYSA-N 0.000 claims description 5
- IVTMALDHFAHOGL-UHFFFAOYSA-N eriodictyol 7-O-rutinoside Natural products OC1C(O)C(O)C(C)OC1OCC1C(O)C(O)C(O)C(OC=2C=C3C(C(C(O)=C(O3)C=3C=C(O)C(O)=CC=3)=O)=C(O)C=2)O1 IVTMALDHFAHOGL-UHFFFAOYSA-N 0.000 claims description 5
- FDRQPMVGJOQVTL-UHFFFAOYSA-N quercetin rutinoside Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC=2C(C3=C(O)C=C(O)C=C3OC=2C=2C=C(O)C(O)=CC=2)=O)O1 FDRQPMVGJOQVTL-UHFFFAOYSA-N 0.000 claims description 5
- IKGXIBQEEMLURG-BKUODXTLSA-N rutin Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](C)O[C@@H]1OC[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](OC=2C(C3=C(O)C=C(O)C=C3OC=2C=2C=C(O)C(O)=CC=2)=O)O1 IKGXIBQEEMLURG-BKUODXTLSA-N 0.000 claims description 5
- ALABRVAAKCSLSC-UHFFFAOYSA-N rutin Natural products CC1OC(OCC2OC(O)C(O)C(O)C2O)C(O)C(O)C1OC3=C(Oc4cc(O)cc(O)c4C3=O)c5ccc(O)c(O)c5 ALABRVAAKCSLSC-UHFFFAOYSA-N 0.000 claims description 5
- 235000005493 rutin Nutrition 0.000 claims description 5
- 229960004555 rutoside Drugs 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 42
- 238000009792 diffusion process Methods 0.000 description 27
- 229910021341 titanium silicide Inorganic materials 0.000 description 18
- 239000010936 titanium Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 13
- 238000005530 etching Methods 0.000 description 12
- 229910052719 titanium Inorganic materials 0.000 description 11
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 10
- 238000003860 storage Methods 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 229910052797 bismuth Inorganic materials 0.000 description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 6
- 239000010937 tungsten Substances 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 229910010037 TiAlN Inorganic materials 0.000 description 4
- 229910008482 TiSiN Inorganic materials 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- QRXWMOHMRWLFEY-UHFFFAOYSA-N isoniazide Chemical compound NNC(=O)C1=CC=NC=C1 QRXWMOHMRWLFEY-UHFFFAOYSA-N 0.000 description 4
- 229910052746 lanthanum Inorganic materials 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 4
- 229910004200 TaSiN Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- -1 for example Chemical compound 0.000 description 3
- 229910021332 silicide Inorganic materials 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- 238000001039 wet etching Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910019001 CoSi Inorganic materials 0.000 description 2
- 229910016006 MoSi Inorganic materials 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- 229910004166 TaN Inorganic materials 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 229910008484 TiSi Inorganic materials 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910000457 iridium oxide Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000005368 silicate glass Substances 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910016062 BaRuO Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910018921 CoO 3 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910004121 SrRuO Inorganic materials 0.000 description 1
- 229910002367 SrTiO Inorganic materials 0.000 description 1
- 229910004491 TaAlN Inorganic materials 0.000 description 1
- 229910010060 TiBN Inorganic materials 0.000 description 1
- 229910008812 WSi Inorganic materials 0.000 description 1
- 229910008938 W—Si Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000005360 phosphosilicate glass Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- XOUPWBJVJFQSLK-UHFFFAOYSA-J titanium(4+);tetranitrite Chemical compound [Ti+4].[O-]N=O.[O-]N=O.[O-]N=O.[O-]N=O XOUPWBJVJFQSLK-UHFFFAOYSA-J 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/60—Electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
- H10B53/30—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors characterised by the memory core region
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76895—Local interconnects; Local pads, as exemplified by patent document EP0896365
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Semiconductor Memories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
【解決手段】基礎導電膜51と、層間膜コンタクトホールを有し、基礎導電膜51上面に形成された、層間絶縁膜52と、層間膜コンタクトホールと連続した接着層コンタクトホールを有し、層間絶縁膜上面に形成された接着層54と、層間膜コンタクトホール及び接着層コンタクトホールからなる複合コンタクトホール内に、基礎導電膜51に接続され、接着層54の上面に合わせて平坦化されて形成された接続部200と、接続部200及び接着層54の上面に形成された第1電極57、58、誘電体膜59、及び第2電極60を備えたキャパシタとを装備する半導体素子を製造する。
【選択図】図5
Description
32、52 層間絶縁膜
33、53 プラグ埋込層
33a、53a ポリシリコンプラグ
34、54 接着層
35、55 チタニウムシリサイド
36a、56a チタニウムナイトライド
37、57 拡散バリヤ膜
38、58 下部電極
39、59 誘電体膜
40、60 上部電極
Claims (6)
- トランジスタが形成された半導体基板上面に層間絶縁膜を成長させる層間絶縁膜成長工程と、
前記層間絶縁膜をパターニングして、前記半導体基板の所定領域の表面を露出させる層間膜コンタクトホールを形成する層間膜コンタクトホール形成工程と、
前記層間膜コンタクトホール内、及び前記層間絶縁膜の上面に、シリコン含有物質からなるプラグ埋込層を成長させ、前記層間膜コンタクトホール内にプラグを形成するプラグ形成工程と、
前記プラグ及び前記層間絶縁膜の上面に形成された前記プラグ埋込層をエッチバック法で平坦化するプラグ埋込層平坦化工程と、
前記プラグ及び前記層間絶縁膜の上面に所定の厚さを有する反応予備膜を形成する反応予備膜形成工程と、
前記反応予備膜の上面にイリジウム含有物質を含むイリジウム反応層を成長させ、前記反応予備膜のシリコンと前記イリジウム反応層のイリジウムとを反応させて、前記プラグ及び前記層間絶縁膜の上面に、シリコン及びイリジウムを含有する接着層を成長させる接着層成長工程と、
前記接着層をパターニングして、前記プラグの上面を露出させる接着層コンタクトホールを形成する接着層コンタクトホール形成工程と、
前記接着層コンタクトホール内、及び前記接着層上面に導電性のバリヤ埋込層を成長させるバリヤ埋込層成長工程と、
前記接着層の表面が露出するまで、前記バリヤ埋込層を平坦化して、前記バリヤ層を形成するバリヤ埋込層平坦化工程と、
前記バリヤ層及び前記接着層の上面に第1電極と、誘電体膜と、第2電極とを含んで構成されるキャパシタを形成するキャパシタ形成工程とを含むことを特徴とする半導体素子の製造方法。 - 前記接着層形成工程を、約500℃〜約800℃の温度範囲で前記イリジウム反応層を成長させる条件で行うことを特徴とする請求項1記載の半導体素子の製造方法。
- 前記プラグ形成工程が、
前記プラグ埋込層としてポリシリコン層を成長させることを特徴とする請求項1記載の半導体素子の製造方法。 - 前記反応予備膜を、約10Å〜約1000Åの範囲内の厚さに形成することを特徴とする請求項1記載の半導体素子の製造方法。
- 前記バリヤ埋込層平坦化工程を、CMP法により、前記バリヤ層と前記接着層との研磨選択比が約50:1〜80:1の範囲内となる条件で行うことを特徴とする請求項1記載の半導体素子の製造方法。
- 前記キャパシタ形成工程が、前記第1電極を形成する第1電極形成工程と、前記第2電極を形成する第2電極形成工程とを含み、前記第1電極形成工程または前記第2電極形成工程が、TiN、RuTiN、IrTiN、Ir、IrOx、Ru、RuOx、Rh、RhOx、Pt及びこれらを組み合わせたもののうち、いずれかの物質を成長させる処理を含むことを特徴とする請求項1記載の半導体素子の製造方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2001-056143 | 2001-09-12 | ||
KR1020010056143A KR20030023142A (ko) | 2001-09-12 | 2001-09-12 | 반도체 소자 제조 방법 |
KR2001-057368 | 2001-09-17 | ||
KR10-2001-0057368A KR100415539B1 (ko) | 2001-09-17 | 2001-09-17 | 반도체 소자의 제조 방법 |
Related Parent Applications (1)
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JP2002265456A Division JP4467229B2 (ja) | 2001-09-12 | 2002-09-11 | 半導体素子の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2010004082A true JP2010004082A (ja) | 2010-01-07 |
JP5047250B2 JP5047250B2 (ja) | 2012-10-10 |
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JP2002265456A Expired - Fee Related JP4467229B2 (ja) | 2001-09-12 | 2002-09-11 | 半導体素子の製造方法 |
JP2009231557A Expired - Fee Related JP5047250B2 (ja) | 2001-09-12 | 2009-10-05 | 半導体素子の製造方法 |
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JP2002265456A Expired - Fee Related JP4467229B2 (ja) | 2001-09-12 | 2002-09-11 | 半導体素子の製造方法 |
Country Status (2)
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US (1) | US6818935B2 (ja) |
JP (2) | JP4467229B2 (ja) |
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US7146007B1 (en) * | 2000-03-29 | 2006-12-05 | Sony Corporation | Secure conditional access port interface |
AR028948A1 (es) * | 2000-06-20 | 2003-05-28 | Astrazeneca Ab | Compuestos novedosos |
US6908639B2 (en) | 2001-04-02 | 2005-06-21 | Micron Technology, Inc. | Mixed composition interface layer and method of forming |
KR100561839B1 (ko) * | 2001-11-10 | 2006-03-16 | 삼성전자주식회사 | 강유전체 커패시터 및 그 제조방법 |
KR100440072B1 (ko) * | 2001-12-10 | 2004-07-14 | 주식회사 하이닉스반도체 | 반도체소자의 캐패시터 형성방법 |
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US20050070097A1 (en) * | 2003-09-29 | 2005-03-31 | International Business Machines Corporation | Atomic laminates for diffusion barrier applications |
US20050087788A1 (en) * | 2003-10-22 | 2005-04-28 | Matsushita Electric Industrial Co., Ltd. | Semiconductor device and method for fabricating the same |
US20060046378A1 (en) * | 2004-08-26 | 2006-03-02 | Samsung Electronics Co., Ltd. | Methods of fabricating MIM capacitor employing metal nitride layer as lower electrode |
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JP4375561B2 (ja) * | 2004-12-28 | 2009-12-02 | セイコーエプソン株式会社 | 半導体記憶装置及びその製造方法 |
JP2006324363A (ja) * | 2005-05-17 | 2006-11-30 | Elpida Memory Inc | キャパシタおよびその製造方法 |
JP2006352082A (ja) * | 2005-05-19 | 2006-12-28 | Renesas Technology Corp | 半導体記憶装置及びその製造方法 |
KR100705397B1 (ko) * | 2005-07-13 | 2007-04-10 | 삼성전자주식회사 | 저 저항의 텅스텐막 형성 방법 |
CN101253620B (zh) * | 2005-08-31 | 2011-02-16 | 富士通半导体股份有限公司 | 半导体器件及其制造方法 |
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US20030057445A1 (en) | 2003-03-27 |
JP5047250B2 (ja) | 2012-10-10 |
US6818935B2 (en) | 2004-11-16 |
JP2003179164A (ja) | 2003-06-27 |
JP4467229B2 (ja) | 2010-05-26 |
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