JP4783261B2 - 半導体装置の製造方法 - Google Patents
半導体装置の製造方法 Download PDFInfo
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- JP4783261B2 JP4783261B2 JP2006293488A JP2006293488A JP4783261B2 JP 4783261 B2 JP4783261 B2 JP 4783261B2 JP 2006293488 A JP2006293488 A JP 2006293488A JP 2006293488 A JP2006293488 A JP 2006293488A JP 4783261 B2 JP4783261 B2 JP 4783261B2
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- 239000004065 semiconductor Substances 0.000 title claims description 21
- 238000004519 manufacturing process Methods 0.000 title claims description 17
- 238000007747 plating Methods 0.000 claims description 111
- 239000013078 crystal Substances 0.000 claims description 59
- 238000000034 method Methods 0.000 claims description 36
- 238000009713 electroplating Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 12
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 description 91
- 239000010410 layer Substances 0.000 description 65
- 239000012535 impurity Substances 0.000 description 57
- 230000007547 defect Effects 0.000 description 45
- 235000012431 wafers Nutrition 0.000 description 43
- 239000011229 interlayer Substances 0.000 description 28
- 239000002184 metal Substances 0.000 description 28
- 229910052751 metal Inorganic materials 0.000 description 28
- 230000000052 comparative effect Effects 0.000 description 19
- 230000004888 barrier function Effects 0.000 description 18
- 239000000463 material Substances 0.000 description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 238000005229 chemical vapour deposition Methods 0.000 description 10
- 238000004544 sputter deposition Methods 0.000 description 10
- 239000000470 constituent Substances 0.000 description 9
- 238000001020 plasma etching Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 8
- 239000011800 void material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000004380 ashing Methods 0.000 description 3
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- 238000004627 transmission electron microscopy Methods 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000007772 electroless plating Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000000206 photolithography Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- -1 accelerators Chemical class 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910021426 porous silicon Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002356 single layer Substances 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
- 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
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/60—Electroplating characterised by the structure or texture of the layers
- C25D5/615—Microstructure of the layers, e.g. mixed structure
- C25D5/617—Crystalline layers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/12—Semiconductors
- C25D7/123—Semiconductors first coated with a seed layer or a conductive layer
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/288—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition
- H01L21/2885—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition using an external electrical current, i.e. electro-deposition
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Description
以下、第1の実施の形態について説明する。図1(a)〜図6(b)は本実施の形態に係る半導体装置の模式的な製造プロセス図であり、図7は本実施の形態に係るめっき装置の模式的な概略構成図である。
以下、第2の実施の形態について説明する。本実施の形態では、電流密度或いは印加電圧を連続的に低下させながらめっき膜を形成する例について説明する。
以下、実施例1,2及び比較例1について説明する。実施例1,2及び比較例1では、SM加速試験を行い不良率を測定するとともにCu配線の物理解析を行った。また、CMPで不要な部分を除去する前におけるCu配線膜の不純物濃度解析を行うとともに実施例1,2においては結晶粒解析を行った。
以下、実施例3〜9及び比較例2,3について説明する。実施例3〜9及び比較例2,3では、不純物濃度、Cu配線の欠陥量、SIV不良率を測定した。
以下、実施例10〜15について説明する。実施例10〜15では、不純物濃度、Cu配線の結晶欠陥量、SIV不良率を測定した。
以下、実施例16,17について説明する。実施例16,17では、不純物濃度、Cu配線の結晶欠陥量、SIV不良率を測定した。
Claims (5)
- 表面に凹部を有する基板上に,少なくとも前記凹部に埋め込まれ,S,Cl,O,C,およびNの少なくともいずれかの濃度が下部より上部の方が高いめっき膜を形成する工程と,
前記めっき膜に熱処理を施して,前記めっき膜の結晶を成長させる工程と,
前記めっき膜に熱処理を施した後,前記凹部に埋め込まれた部分以外の前記めっき膜を除去する工程と,を具備し,
前記めっき膜の形成は電解めっきにより行われ,前記電解めっきは電流密度或いは印加電圧を連続的に低下させながら行われる
ことを特徴とする半導体装置の製造方法。 - 前記めっき膜の形成は前記基板を回転させながら行われ,かつ前記基板の回転は前記基板の回転数を連続的或いは段階的に上昇させながら行われることを特徴とする請求項1記載の半導体装置の製造方法。
- 表面に凹部を有する基板上に,少なくとも前記凹部に埋め込まれ,S,Cl,O,C,およびNの少なくともいずれかの濃度が下部より上部の方が高いめっき膜を形成する工程と,
前記めっき膜に熱処理を施して,前記めっき膜の結晶を成長させる工程と,
前記めっき膜に熱処理を施した後,前記凹部に埋め込まれた部分以外の前記めっき膜を除去する工程と,を具備し,
前記めっき膜の形成は前記基板を回転させながら行われ,かつ前記基板の回転は前記基板の回転数を連続的或いは段階的に上昇させながら行われる
ことを特徴とする半導体装置の製造方法。 - 前記めっき膜の形成は,前記基板の回転数を,前記凹部の底面から前記凹部の深さに対して1.2倍以上の高さとなる位置で段階的に切替えて行われることを特徴とする請求項2または3に記載の半導体装置の製造方法。
- 前記凹部は複数存在し,複数の前記凹部の全てについて,前記凹部の底面から前記凹部の深さ以上の高さとなる位置で,前記基板の回転数を段階的に切替えることを特徴とする請求項4記載の半導体装置の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006293488A JP4783261B2 (ja) | 2006-10-30 | 2006-10-30 | 半導体装置の製造方法 |
US11/926,614 US7601638B2 (en) | 2006-10-30 | 2007-10-29 | Interconnect metallization method having thermally treated copper plate film with reduced micro-voids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006293488A JP4783261B2 (ja) | 2006-10-30 | 2006-10-30 | 半導体装置の製造方法 |
Publications (2)
Publication Number | Publication Date |
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JP2008112772A JP2008112772A (ja) | 2008-05-15 |
JP4783261B2 true JP4783261B2 (ja) | 2011-09-28 |
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JP2006293488A Expired - Fee Related JP4783261B2 (ja) | 2006-10-30 | 2006-10-30 | 半導体装置の製造方法 |
Country Status (2)
Country | Link |
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US (1) | US7601638B2 (ja) |
JP (1) | JP4783261B2 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8105937B2 (en) * | 2008-08-13 | 2012-01-31 | International Business Machines Corporation | Conformal adhesion promoter liner for metal interconnects |
JP2011023487A (ja) * | 2009-07-14 | 2011-02-03 | Renesas Electronics Corp | 半導体装置及び半導体装置の製造方法 |
US8518817B2 (en) * | 2010-09-22 | 2013-08-27 | International Business Machines Corporation | Method of electrolytic plating and semiconductor device fabrication |
US8629559B2 (en) * | 2012-02-09 | 2014-01-14 | Taiwan Semiconductor Manufacturing Company, Ltd. | Stress reduction apparatus with an inverted cup-shaped layer |
JP6372329B2 (ja) * | 2014-12-03 | 2018-08-15 | 富士通セミコンダクター株式会社 | 半導体装置の製造方法 |
JP6833557B2 (ja) * | 2016-03-04 | 2021-02-24 | 株式会社荏原製作所 | めっき装置及びめっき方法 |
WO2017150657A1 (ja) * | 2016-03-04 | 2017-09-08 | 株式会社荏原製作所 | めっき装置及びめっき方法 |
US11674236B2 (en) * | 2018-03-13 | 2023-06-13 | Yamamoto-Ms Co., Ltd. | Plating apparatus and plating system |
JPWO2023120318A1 (ja) * | 2021-12-24 | 2023-06-29 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6126806A (en) * | 1998-12-02 | 2000-10-03 | International Business Machines Corporation | Enhancing copper electromigration resistance with indium and oxygen lamination |
JP4555540B2 (ja) | 2002-07-08 | 2010-10-06 | ルネサスエレクトロニクス株式会社 | 半導体装置 |
CN1674231A (zh) * | 2002-07-25 | 2005-09-28 | 松下电器产业株式会社 | 镀膜装置 |
US6884335B2 (en) * | 2003-05-20 | 2005-04-26 | Novellus Systems, Inc. | Electroplating using DC current interruption and variable rotation rate |
JP2005223059A (ja) | 2004-02-04 | 2005-08-18 | Toshiba Corp | 半導体装置 |
JP2006019708A (ja) | 2004-06-04 | 2006-01-19 | Toshiba Corp | 半導体装置の製造方法及び半導体装置 |
JP4455214B2 (ja) | 2004-08-05 | 2010-04-21 | 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 |
JP2006060011A (ja) * | 2004-08-20 | 2006-03-02 | Toshiba Corp | 半導体装置の製造方法 |
JP2006294922A (ja) * | 2005-04-12 | 2006-10-26 | Renesas Technology Corp | 半導体装置の製造方法 |
US20060237319A1 (en) * | 2005-04-22 | 2006-10-26 | Akira Furuya | Planting process and manufacturing process for semiconductor device thereby, and plating apparatus |
US20070080067A1 (en) * | 2005-10-07 | 2007-04-12 | Applied Materials, Inc. | Pre-treatment to eliminate the defects formed during electrochemical plating |
-
2006
- 2006-10-30 JP JP2006293488A patent/JP4783261B2/ja not_active Expired - Fee Related
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2007
- 2007-10-29 US US11/926,614 patent/US7601638B2/en active Active
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Publication number | Publication date |
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JP2008112772A (ja) | 2008-05-15 |
US7601638B2 (en) | 2009-10-13 |
US20080102628A1 (en) | 2008-05-01 |
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