JP5025679B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5025679B2 JP5025679B2 JP2009080274A JP2009080274A JP5025679B2 JP 5025679 B2 JP5025679 B2 JP 5025679B2 JP 2009080274 A JP2009080274 A JP 2009080274A JP 2009080274 A JP2009080274 A JP 2009080274A JP 5025679 B2 JP5025679 B2 JP 5025679B2
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- 239000004065 semiconductor Substances 0.000 title claims description 32
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 140
- 239000010410 layer Substances 0.000 claims description 99
- 229910052751 metal Inorganic materials 0.000 claims description 76
- 239000002184 metal Substances 0.000 claims description 76
- 230000004888 barrier function Effects 0.000 claims description 65
- 239000000758 substrate Substances 0.000 claims description 24
- 239000011229 interlayer Substances 0.000 claims description 23
- 229910000510 noble metal Inorganic materials 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 4
- 239000010408 film Substances 0.000 description 270
- 238000000034 method Methods 0.000 description 52
- 238000005121 nitriding Methods 0.000 description 42
- 239000000203 mixture Substances 0.000 description 28
- 230000008569 process Effects 0.000 description 25
- 238000005755 formation reaction Methods 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 21
- 238000007747 plating Methods 0.000 description 21
- 230000015572 biosynthetic process Effects 0.000 description 20
- 238000004544 sputter deposition Methods 0.000 description 20
- 239000007789 gas Substances 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000000137 annealing Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 8
- 230000007547 defect Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 6
- 238000005240 physical vapour deposition Methods 0.000 description 6
- 239000002574 poison Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000412 polyarylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000011366 tin-based material Substances 0.000 description 1
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- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/5329—Insulating materials
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- H01L21/04—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
- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/2855—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by physical means, e.g. sputtering, evaporation
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- 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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76805—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 by forming openings in dielectrics the opening being a via or contact hole penetrating the underlying conductor
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- 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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76814—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 by forming openings in dielectrics post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
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- 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
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76828—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. thermal treatment
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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
- H01L21/76835—Combinations of two or more different dielectric layers having a low dielectric constant
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- 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
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
- H01L21/76844—Bottomless liners
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- 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
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
- H01L21/76846—Layer combinations
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- 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
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76855—After-treatment introducing at least one additional element into the layer
- H01L21/76856—After-treatment introducing at least one additional element into the layer by treatment in plasmas or gaseous environments, e.g. nitriding a refractory metal liner
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- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
- H01L23/53238—Additional layers associated with copper layers, e.g. adhesion, barrier, cladding layers
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- 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
- H01L21/76802—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 by forming openings in dielectrics
- H01L21/76807—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 by forming openings in dielectrics for dual damascene structures
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Description
Claims (4)
- 半導体基板と、
前記半導体基板上に形成され、凹部を有する層間絶縁膜と、
前記凹部の底部および側壁部に沿って形成され、前記側壁部上に堆積された第1の部分と前記底部上に堆積された第2の部分とを有するバリアメタル層と、
前記バリアメタル層を介して前記凹部内に形成され、配線幅が75nm以下のCu配線層とを具備し、
前記第1の部分はTiおよびNを含み、酸素および貴金属成分を除く全成分におけるTi含有量が50原子%を超えるTiNx 層からなり、前記第2の部分はTiおよびNを含み、酸素および貴金属成分を除く全成分におけるTi含有量が50原子%を超え、かつN含有量が40原子%未満であるTiNx 層からなり、前記第2の部分のTi含有量の体積平均が前記第1の部分のTi含有量の体積平均と比べて相対的に多いことを特徴とする半導体装置。 - 請求項1記載の半導体装置において、
前記バリアメタル層は、前記凹部の底部および側壁部に沿って形成され、TiおよびNを含み、酸素および貴金属成分を除く全成分におけるTi含有量が50原子%を超える第1のTiN x 膜と、前記第1のTiN x 膜上に形成され、TiおよびNを含み、酸素および貴金属成分を除く全成分におけるTi含有量が50原子%を超える第2のTiN x 膜、またはTi膜との積層膜を有し、
前記第2のTiN x 膜またはTi膜は、前記第1の部分と比較して前記第2の部分に相対的に厚く堆積されていることを特徴とする半導体装置。 - 請求項2記載の半導体装置において、
前記第1の部分における前記第2のTiN x 膜またはTi膜は、不連続またはアイランド状に形成されていることを特徴とする半導体装置。 - 請求項1記載の半導体装置において、
前記バリアメタル層は、前記凹部の底部および側壁部に沿って形成され、TiおよびNを含み、酸素および貴金属成分を除く全成分におけるTi含有量が50原子%を超えるTiN x 膜を有し、
前記TiN x 膜は、前記第1の部分と比較して前記第2の部分が相対的に多く窒化されていることを特徴とする半導体装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2009080274A JP5025679B2 (ja) | 2009-03-27 | 2009-03-27 | 半導体装置 |
US12/712,001 US20100244256A1 (en) | 2009-03-27 | 2010-02-24 | Semiconductor device and manufacturing method thereof |
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JP2009080274A JP5025679B2 (ja) | 2009-03-27 | 2009-03-27 | 半導体装置 |
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JP2011248576A Division JP2012074714A (ja) | 2011-11-14 | 2011-11-14 | 半導体装置の製造方法 |
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JP5025679B2 true JP5025679B2 (ja) | 2012-09-12 |
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JP5925611B2 (ja) * | 2012-06-21 | 2016-05-25 | 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 |
US8710660B2 (en) * | 2012-07-20 | 2014-04-29 | Taiwan Semiconductor Manufacturing Company, Ltd. | Hybrid interconnect scheme including aluminum metal line in low-k dielectric |
US9312203B2 (en) * | 2013-01-02 | 2016-04-12 | Globalfoundries Inc. | Dual damascene structure with liner |
US10396012B2 (en) * | 2016-05-27 | 2019-08-27 | International Business Machines Corporation | Advanced through substrate via metallization in three dimensional semiconductor integration |
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KR970001883B1 (ko) * | 1992-12-30 | 1997-02-18 | 삼성전자 주식회사 | 반도체장치 및 그 제조방법 |
JP3540302B2 (ja) * | 2001-10-19 | 2004-07-07 | Nec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 |
JP2005244178A (ja) * | 2004-01-26 | 2005-09-08 | Toshiba Corp | 半導体装置の製造方法 |
US7351656B2 (en) * | 2005-01-21 | 2008-04-01 | Kabushiki Kaihsa Toshiba | Semiconductor device having oxidized metal film and manufacture method of the same |
JP4830421B2 (ja) * | 2005-06-28 | 2011-12-07 | 東京エレクトロン株式会社 | 金属膜の成膜方法及び成膜装置 |
TW200814156A (en) * | 2006-07-21 | 2008-03-16 | Toshiba Kk | Method for manufacturing semiconductor device and semiconductor device |
JP4498391B2 (ja) * | 2006-07-21 | 2010-07-07 | 株式会社東芝 | 半導体装置の製造方法 |
JP2008078390A (ja) * | 2006-09-21 | 2008-04-03 | Fujitsu Ltd | 半導体装置およびその製造方法 |
KR100885186B1 (ko) * | 2007-05-03 | 2009-02-23 | 삼성전자주식회사 | 확산 베리어 필름을 포함하는 반도체 소자의 형성 방법 |
US7799674B2 (en) * | 2008-02-19 | 2010-09-21 | Asm Japan K.K. | Ruthenium alloy film for copper interconnects |
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2009
- 2009-03-27 JP JP2009080274A patent/JP5025679B2/ja not_active Expired - Fee Related
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2010
- 2010-02-24 US US12/712,001 patent/US20100244256A1/en not_active Abandoned
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US20100244256A1 (en) | 2010-09-30 |
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