JP5739434B2 - 銅プラグを有する半導体デバイスおよびデバイスを形成するための方法 - Google Patents
銅プラグを有する半導体デバイスおよびデバイスを形成するための方法 Download PDFInfo
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- JP5739434B2 JP5739434B2 JP2012532086A JP2012532086A JP5739434B2 JP 5739434 B2 JP5739434 B2 JP 5739434B2 JP 2012532086 A JP2012532086 A JP 2012532086A JP 2012532086 A JP2012532086 A JP 2012532086A JP 5739434 B2 JP5739434 B2 JP 5739434B2
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- layer
- semiconductor device
- insulating layer
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- copper
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- 239000004065 semiconductor Substances 0.000 title claims description 66
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 61
- 229910052802 copper Inorganic materials 0.000 title claims description 61
- 239000010949 copper Substances 0.000 title claims description 61
- 238000000034 method Methods 0.000 title description 25
- 230000004888 barrier function Effects 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 238000005272 metallurgy Methods 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 11
- 239000000758 substrate Substances 0.000 claims description 10
- 150000004767 nitrides Chemical group 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- -1 tungsten nitride Chemical class 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 3
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 2
- MAKDTFFYCIMFQP-UHFFFAOYSA-N titanium tungsten Chemical compound [Ti].[W] MAKDTFFYCIMFQP-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 description 26
- 238000002161 passivation Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 16
- 229910052581 Si3N4 Inorganic materials 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000007747 plating Methods 0.000 description 9
- 239000003989 dielectric material Substances 0.000 description 8
- 229910000679 solder Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000004642 Polyimide Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 5
- 238000001020 plasma etching Methods 0.000 description 5
- 229920001721 polyimide Polymers 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000000206 photolithography Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- WPPDFTBPZNZZRP-UHFFFAOYSA-N aluminum copper Chemical compound [Al].[Cu] WPPDFTBPZNZZRP-UHFFFAOYSA-N 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
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- H01L2224/10—Bump connectors; Manufacturing methods related thereto
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- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
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- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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Description
Claims (8)
- 複数の配線層を有する半導体基板であって、最終配線層が導電材料を備える、半導体基板と、
前記最終配線層上に形成された絶縁層であって、前記絶縁層が前記最終配線層内の前記導電材料を露出させるために内部に形成されたビア開口部を有する、絶縁層と、
前記ビア開口部内に形成された障壁層と、
前記障壁層上に形成され、前記ビア開口部を前記絶縁層の上面まで埋める銅プラグと、
前記絶縁層上に形成され、前記銅プラグと位置合わせされ前記ビア開口部よりも大きな開口部を有する誘電層と、
前記誘電層上および前記誘電層の前記開口部内に形成されたボール制限冶金層と、
を備える、半導体デバイス。 - 前記障壁層が前記最終配線層内の前記導電材料と接触している、請求項1に記載の半導体デバイス。
- 前記銅プラグを覆って形成されたキャップ層をさらに備える、請求項1または2に記載の半導体デバイス。
- 前記キャップ層が窒化物層である、請求項3に記載の半導体デバイス。
- 前記障壁層が、タンタル/窒化タンタル、チタニウム、チタン・タングステン、窒化チタン、および窒化タングステンからなる族から選択される、請求項1〜4のいずれか1項に記載の半導体デバイス。
- 前記銅プラグが、前記最終配線層に対して45度から75度の角度を成す壁を有する、請求項1〜5のいずれか1項に記載の半導体デバイス。
- 前記絶縁層と前記障壁層との間の前記ビア開口部内にアルミニウム層をさらに備え、前記アルミニウム層が前記誘電層の前記開口部内の前記絶縁層を覆って延在する、請求項1〜6のいずれか1項に記載の半導体デバイス。
- 前記絶縁層と前記誘電層との間に窒化物からなるキャップ層をさらに備える、請求項1〜7のいずれか1項に記載の半導体デバイス。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US12/573,183 US8610283B2 (en) | 2009-10-05 | 2009-10-05 | Semiconductor device having a copper plug |
US12/573,183 | 2009-10-05 | ||
PCT/US2010/046268 WO2011043869A2 (en) | 2009-10-05 | 2010-08-23 | Semiconductor device having a copper plug |
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JP2015039688A Division JP2015133509A (ja) | 2009-10-05 | 2015-02-28 | 銅プラグを有する半導体デバイスとその形成方法 |
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JP5739434B2 true JP5739434B2 (ja) | 2015-06-24 |
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JP2015039688A Pending JP2015133509A (ja) | 2009-10-05 | 2015-02-28 | 銅プラグを有する半導体デバイスとその形成方法 |
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US (4) | US8610283B2 (ja) |
JP (2) | JP5739434B2 (ja) |
CN (1) | CN102511078A (ja) |
DE (1) | DE112010003936B4 (ja) |
GB (1) | GB2486357B (ja) |
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Cited By (4)
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US20220310544A1 (en) * | 2020-06-30 | 2022-09-29 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device structure and methods of forming the same |
US11756913B2 (en) * | 2020-06-30 | 2023-09-12 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device structure and methods of forming the same |
US20230378115A1 (en) * | 2020-06-30 | 2023-11-23 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor device structure and methods of forming the same |
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GB201202913D0 (en) | 2012-04-04 |
GB2486357B (en) | 2015-05-27 |
WO2011043869A2 (en) | 2011-04-14 |
DE112010003936T5 (de) | 2012-08-16 |
US20130157458A1 (en) | 2013-06-20 |
JP2013506999A (ja) | 2013-02-28 |
US20120168952A1 (en) | 2012-07-05 |
US8741769B2 (en) | 2014-06-03 |
WO2011043869A3 (en) | 2011-06-03 |
US20110079907A1 (en) | 2011-04-07 |
TWI473233B (zh) | 2015-02-11 |
CN102511078A (zh) | 2012-06-20 |
DE112010003936B4 (de) | 2021-01-14 |
GB2486357A (en) | 2012-06-13 |
JP2015133509A (ja) | 2015-07-23 |
US8610283B2 (en) | 2013-12-17 |
US20140054778A1 (en) | 2014-02-27 |
US8922019B2 (en) | 2014-12-30 |
US8749059B2 (en) | 2014-06-10 |
TW201130100A (en) | 2011-09-01 |
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