JP4701017B2 - 半導体装置の製造方法及び半導体装置 - Google Patents
半導体装置の製造方法及び半導体装置 Download PDFInfo
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- JP4701017B2 JP4701017B2 JP2005180604A JP2005180604A JP4701017B2 JP 4701017 B2 JP4701017 B2 JP 4701017B2 JP 2005180604 A JP2005180604 A JP 2005180604A JP 2005180604 A JP2005180604 A JP 2005180604A JP 4701017 B2 JP4701017 B2 JP 4701017B2
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- 239000004065 semiconductor Substances 0.000 title claims description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 67
- 239000011229 interlayer Substances 0.000 claims description 65
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 59
- 229910052802 copper Inorganic materials 0.000 claims description 58
- 239000010949 copper Substances 0.000 claims description 58
- 238000000034 method Methods 0.000 claims description 45
- 239000010410 layer Substances 0.000 claims description 41
- 229910052757 nitrogen Inorganic materials 0.000 claims description 36
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 22
- 239000002994 raw material Substances 0.000 claims description 18
- -1 nitrogen-containing compound Chemical class 0.000 claims description 13
- 238000005268 plasma chemical vapour deposition Methods 0.000 claims description 13
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 9
- 125000000962 organic group Chemical group 0.000 claims description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000009832 plasma treatment Methods 0.000 claims description 6
- 238000005468 ion implantation Methods 0.000 claims description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 5
- 238000010526 radical polymerization reaction Methods 0.000 claims description 5
- 150000003377 silicon compounds Chemical class 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 3
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 3
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000005121 nitriding Methods 0.000 claims description 3
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 claims description 3
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000003085 diluting agent Substances 0.000 claims description 2
- 150000003961 organosilicon compounds Chemical class 0.000 claims 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 53
- 229910001431 copper ion Inorganic materials 0.000 description 53
- 238000009792 diffusion process Methods 0.000 description 50
- 230000015572 biosynthetic process Effects 0.000 description 22
- YQJPWWLJDNCSCN-UHFFFAOYSA-N 1,3-diphenyltetramethyldisiloxane Chemical compound C=1C=CC=CC=1[Si](C)(C)O[Si](C)(C)C1=CC=CC=C1 YQJPWWLJDNCSCN-UHFFFAOYSA-N 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 7
- 230000009977 dual effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- DYZHZLQEGSYGDH-UHFFFAOYSA-N 7-bicyclo[4.2.0]octa-1,3,5-trienyl-[[7,8-bis(ethenyl)-7-bicyclo[4.2.0]octa-1,3,5-trienyl]oxy]silane Chemical compound C1C2=CC=CC=C2C1[SiH2]OC1(C=C)C2=CC=CC=C2C1C=C DYZHZLQEGSYGDH-UHFFFAOYSA-N 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 3
- 230000001588 bifunctional effect Effects 0.000 description 3
- 238000005137 deposition process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- 229910002808 Si–O–Si Inorganic materials 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000010504 bond cleavage reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- GCSJLQSCSDMKTP-UHFFFAOYSA-N ethenyl(trimethyl)silane Chemical compound C[Si](C)(C)C=C GCSJLQSCSDMKTP-UHFFFAOYSA-N 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
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- UIUXUFNYAYAMOE-UHFFFAOYSA-N methylsilane Chemical compound [SiH3]C UIUXUFNYAYAMOE-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- CZDYPVPMEAXLPK-UHFFFAOYSA-N tetramethylsilane Chemical compound C[Si](C)(C)C CZDYPVPMEAXLPK-UHFFFAOYSA-N 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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- 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
- H01L21/76801—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 dielectrics, e.g. smoothing
- H01L21/76829—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 dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
- H01L21/76834—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 dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers formation of thin insulating films on the sidewalls or on top of conductors
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- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02126—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material containing Si, O, and at least one of H, N, C, F, or other non-metal elements, e.g. SiOC, SiOC:H or SiONC
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- H01L21/02214—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen
- H01L21/02216—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being characterised by the precursor material for deposition the precursor containing a compound comprising Si the compound comprising silicon and oxygen the compound being a molecule comprising at least one silicon-oxygen bond and the compound having hydrogen or an organic group attached to the silicon or oxygen, e.g. a siloxane
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- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
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- H01L21/02167—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon carbide not containing oxygen, e.g. SiC, SiC:H or silicon carbonitrides
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Description
まず、本発明の第1の実施形態に係る半導体装置の製造方法について、図面を参照しながら説明する。
まず、本発明の第2の実施形態に係る半導体装置の製造方法について、図面を参照しながら説明する。
まず、本発明の第3の実施形態に係る半導体装置の製造方法について、図面を参照しながら説明する。
1a ビアホール
1b 配線溝
1c デュアルダマシン配線溝
2 バリア膜
3a 配線プラグ
3b 銅配線
4a SiCN膜
4b プラズマ窒化層
4c 窒素イオン注入層
Claims (10)
- 基板上の絶縁膜に形成された銅配線における露出部位に、窒素を含む層を形成する工程と、
シロキサン(Si−O−Si)結合を有する有機シリコン化合物を原料として用いて、プラズマCVD法により、前記窒素を含む層の上に層間絶縁膜を形成する工程とを備え、
前記層間絶縁膜は、有機分子同士がプラズマでラジカル重合することにより結合を作ることになり、重合した前記有機分子部位とシロキサン部位とが交互に結合された主鎖を有し、前記シロキサン部位が前記有機分子部位によって3次元的に囲まれた膜構造を有していることを特徴とする半導体装置の製造方法。 - 前記窒素を含む層を形成する工程は、SiCNよりなる層を形成する工程であることを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記窒素を含む層を形成する工程は、窒素を含む雰囲気下でのプラズマ処理により、前記露出部位を窒化することによって形成されることを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記窒素を含む雰囲気下でプラズマ処理する際に、前記窒素を含む層を形成する工程は、不活性ガスを希釈ガスとして用いて行なわれることを特徴とする請求項3に記載の半導体装置の製造方法。
- 前記窒素を含む雰囲気は、窒素含有化合物を含む雰囲気であることを特徴とする請求項4に記載の半導体装置の製造方法。
- 前記窒素含有化合物は、アンモニア、又はアミン誘導体であることを特徴とする請求項5に記載の半導体装置の製造方法。
- 前記窒素を含む層を形成する工程は、前記露出部位に窒素をイオン注入することによって形成されることを特徴とする請求項1に記載の半導体装置の製造方法。
- 前記有機シリコン化合物は、エチル基、プロピル基、ブチル基(含シクロブチル基)、ペンチル基(含シクロペンチル基)、へキシル基(含シクロへキシル基)、ビニル基、ビニル基の誘導体、フェニル基、及びフェニル基の誘導体からなる有機基群のうちのいずれかを有していることを特徴とする請求項1〜7のうちのいずれか1項に記載の半導体装置の製造方法。
- 基板上の絶縁膜に形成された銅配線における露出部位に形成された窒素を含む層と、
前記窒素を含む層の上に、シロキサン(Si−O−Si)結合を有する有機シリコン化合物を原料として用いて、プラズマCVD法によって形成された層間絶縁膜とを備え、
前記層間絶縁膜は、有機分子同士がプラズマでラジカル重合することにより結合を作ることになり、重合した前記有機分子部位とシロキサン部位とが交互に結合された主鎖を有し、前記シロキサン部位が前記有機分子部位によって3次元的に囲まれた膜構造を有していることを特徴とする半導体装置。 - 前記有機シリコン化合物は、エチル基、プロピル基、ブチル基(含シクロブチル基)、ペンチル基(含シクロペンチル基)、へキシル基(含シクロへキシル基)、ビニル基、ビニル基の誘導体、フェニル基、及びフェニル基の誘導体からなる有機基群のうちのいずれかを有していることを特徴とする請求項9に記載の半導体装置。
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US11/471,491 US20060286816A1 (en) | 2005-06-21 | 2006-06-21 | Method for fabricating semiconductor device and semiconductor device |
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WO2011080827A1 (ja) * | 2009-12-28 | 2011-07-07 | 富士通株式会社 | 配線構造及びその形成方法 |
JP5755471B2 (ja) * | 2011-03-10 | 2015-07-29 | ルネサスエレクトロニクス株式会社 | 半導体装置の製造方法 |
JP6318188B2 (ja) * | 2016-03-30 | 2018-04-25 | 株式会社日立国際電気 | 半導体装置の製造方法、基板処理装置およびプログラム |
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