JP5296043B2 - 半導体ウェハ上に銅層を形成する方法 - Google Patents
半導体ウェハ上に銅層を形成する方法 Download PDFInfo
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- JP5296043B2 JP5296043B2 JP2010281417A JP2010281417A JP5296043B2 JP 5296043 B2 JP5296043 B2 JP 5296043B2 JP 2010281417 A JP2010281417 A JP 2010281417A JP 2010281417 A JP2010281417 A JP 2010281417A JP 5296043 B2 JP5296043 B2 JP 5296043B2
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- Prior art keywords
- copper
- electroplating
- wafer
- power
- period
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010949 copper Substances 0.000 title claims abstract description 153
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 143
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 238000000034 method Methods 0.000 title claims abstract description 79
- 239000004065 semiconductor Substances 0.000 title description 16
- 238000009713 electroplating Methods 0.000 claims abstract description 118
- 239000002184 metal Substances 0.000 abstract description 9
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 230000006870 function Effects 0.000 abstract description 7
- 238000004886 process control Methods 0.000 abstract description 3
- 235000012431 wafers Nutrition 0.000 description 89
- 230000008569 process Effects 0.000 description 48
- 238000007747 plating Methods 0.000 description 43
- 239000000463 material Substances 0.000 description 38
- 238000000151 deposition Methods 0.000 description 20
- 230000008021 deposition Effects 0.000 description 17
- 238000001514 detection method Methods 0.000 description 17
- 239000010409 thin film Substances 0.000 description 15
- 239000010408 film Substances 0.000 description 13
- 238000005240 physical vapour deposition Methods 0.000 description 13
- 239000012535 impurity Substances 0.000 description 12
- 239000000758 substrate Substances 0.000 description 12
- 230000008901 benefit Effects 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 9
- 238000005229 chemical vapour deposition Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000011800 void material Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910000881 Cu alloy Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 4
- 239000005380 borophosphosilicate glass Substances 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 150000004767 nitrides Chemical class 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000006117 anti-reflective coating Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000001351 cycling effect Effects 0.000 description 2
- 238000005137 deposition process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001459 lithography Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006911 nucleation Effects 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- SBEQWOXEGHQIMW-UHFFFAOYSA-N silicon Chemical compound [Si].[Si] SBEQWOXEGHQIMW-UHFFFAOYSA-N 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 238000001015 X-ray lithography Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 229910001423 beryllium ion Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000000609 electron-beam lithography Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 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
- 238000010348 incorporation Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 1
- UPSOBXZLFLJAKK-UHFFFAOYSA-N ozone;tetraethyl silicate Chemical compound [O-][O+]=O.CCO[Si](OCC)(OCC)OCC UPSOBXZLFLJAKK-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- UUWCBFKLGFQDME-UHFFFAOYSA-N platinum titanium Chemical compound [Ti].[Pt] UUWCBFKLGFQDME-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910021332 silicide Inorganic materials 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
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Electrodes Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- Electroplating Methods And Accessories (AREA)
- Physical Vapour Deposition (AREA)
Description
図1は、電気めっきシステムまたはチャンバ10の断面図である。チャンバ10は、チャンバ10の動作を電気的、化学的および機械的に制御するために用いられるコンピュータ制御システム34のブロック図に結合される。システム10は、チャンバ・アセンブリまたはハウジング11を具備する。ハウジング11は、時間の経過と共にチャンバ10から過剰な電気めっき流体を排出するための一つ以上の流出口22を有する。システム10は、流入するめっき流体19を受け入れるための流入口24を有する内カップ12をさらに具備する。この流体19には、増白剤、担体、レベラや同様のめっき添加剤のうち1種以上が含まれる。カップ12には、中央拡散器13が含まれることがある。拡散器13は、一般に、陽極14と、チャンバ10のウェハ20または陰極アセンブリとの間に多少の絶縁を行うために用いられる。図1の陰極は、ウェハ20、クランプ18やターンテーブル16のうち一つ以上を集合的に示す。また、拡散器13は、ウェハ20に対する流体の乱れを軽減し、溶液中の不純物/濃度の均一性または分布を改善するために用いられる。
Claims (1)
- ウェハ(20)上に銅層を形成する方法であって、
前記ウェハ(20)を電気めっきチャンバ(10)内に配置する段階であって、前記電気めっきチャンバ(10)が、前記ウェハ(20)の周縁に沿って配置された複数対の電気コンタクト(18)を通じて前記ウェハ(20)に電気的に接続される制御システム(34)を有し、前記制御システム(34)が前記ウェハ(20)に電力を提供する、段階と、
前記ウェハ(20)に給電して、前記ウェハ(20)上に銅を電気めっきする段階と、
電気めっき中に前記複数対の電気コンタクト(18)間の前記ウェハ(20)全体の電気特性を複数の方向から監視して、前記電気めっきチャンバ(10)内の条件を変更すべきときを判断する段階と
を備えることを特徴とする方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US305093 | 1999-05-03 | ||
US09/305,093 US6297155B1 (en) | 1999-05-03 | 1999-05-03 | Method for forming a copper layer over a semiconductor wafer |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000128669A Division JP4790894B2 (ja) | 1999-05-03 | 2000-04-28 | 半導体ウェハ上に銅層を形成する方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011063888A JP2011063888A (ja) | 2011-03-31 |
JP5296043B2 true JP5296043B2 (ja) | 2013-09-25 |
Family
ID=23179301
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000128669A Expired - Lifetime JP4790894B2 (ja) | 1999-05-03 | 2000-04-28 | 半導体ウェハ上に銅層を形成する方法 |
JP2010281418A Expired - Lifetime JP4791594B2 (ja) | 1999-05-03 | 2010-12-17 | 半導体ウェハ上に銅層を形成する方法 |
JP2010281417A Expired - Lifetime JP5296043B2 (ja) | 1999-05-03 | 2010-12-17 | 半導体ウェハ上に銅層を形成する方法 |
JP2010281416A Expired - Lifetime JP4791593B2 (ja) | 1999-05-03 | 2010-12-17 | 半導体ウェハ上に銅層を形成する方法 |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000128669A Expired - Lifetime JP4790894B2 (ja) | 1999-05-03 | 2000-04-28 | 半導体ウェハ上に銅層を形成する方法 |
JP2010281418A Expired - Lifetime JP4791594B2 (ja) | 1999-05-03 | 2010-12-17 | 半導体ウェハ上に銅層を形成する方法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010281416A Expired - Lifetime JP4791593B2 (ja) | 1999-05-03 | 2010-12-17 | 半導体ウェハ上に銅層を形成する方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6297155B1 (ja) |
EP (1) | EP1050902B1 (ja) |
JP (4) | JP4790894B2 (ja) |
KR (1) | KR100707120B1 (ja) |
CN (1) | CN1197128C (ja) |
AT (1) | ATE317155T1 (ja) |
DE (1) | DE60025773T2 (ja) |
SG (1) | SG83793A1 (ja) |
Families Citing this family (98)
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US6660139B1 (en) * | 1999-11-08 | 2003-12-09 | Ebara Corporation | Plating apparatus and method |
US20060118425A1 (en) * | 2000-04-19 | 2006-06-08 | Basol Bulent M | Process to minimize and/or eliminate conductive material coating over the top surface of a patterned substrate |
US6913680B1 (en) * | 2000-05-02 | 2005-07-05 | Applied Materials, Inc. | Method of application of electrical biasing to enhance metal deposition |
US6478936B1 (en) | 2000-05-11 | 2002-11-12 | Nutool Inc. | Anode assembly for plating and planarizing a conductive layer |
US7195696B2 (en) * | 2000-05-11 | 2007-03-27 | Novellus Systems, Inc. | Electrode assembly for electrochemical processing of workpiece |
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JP4791594B2 (ja) | 2011-10-12 |
JP4791593B2 (ja) | 2011-10-12 |
KR20010014857A (ko) | 2001-02-26 |
DE60025773T2 (de) | 2006-07-20 |
SG83793A1 (en) | 2001-10-16 |
JP2011091425A (ja) | 2011-05-06 |
JP2011063888A (ja) | 2011-03-31 |
DE60025773D1 (de) | 2006-04-13 |
EP1050902A3 (en) | 2001-04-11 |
EP1050902B1 (en) | 2006-02-01 |
JP2011066447A (ja) | 2011-03-31 |
US6297155B1 (en) | 2001-10-02 |
ATE317155T1 (de) | 2006-02-15 |
EP1050902A2 (en) | 2000-11-08 |
CN1197128C (zh) | 2005-04-13 |
KR100707120B1 (ko) | 2007-04-16 |
JP4790894B2 (ja) | 2011-10-12 |
JP2000353675A (ja) | 2000-12-19 |
CN1272685A (zh) | 2000-11-08 |
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