KR20050054064A - 희생금속산화막을 채택하여 이중다마신 금속배선을형성하는 방법 - Google Patents
희생금속산화막을 채택하여 이중다마신 금속배선을형성하는 방법 Download PDFInfo
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- KR20050054064A KR20050054064A KR1020030087351A KR20030087351A KR20050054064A KR 20050054064 A KR20050054064 A KR 20050054064A KR 1020030087351 A KR1020030087351 A KR 1020030087351A KR 20030087351 A KR20030087351 A KR 20030087351A KR 20050054064 A KR20050054064 A KR 20050054064A
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- 238000000034 method Methods 0.000 title claims abstract description 102
- 229910044991 metal oxide Inorganic materials 0.000 title claims abstract description 82
- 150000004706 metal oxides Chemical class 0.000 title claims abstract description 82
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 23
- 239000002184 metal Substances 0.000 title claims abstract description 23
- 230000009977 dual effect Effects 0.000 title description 6
- 239000010410 layer Substances 0.000 claims abstract description 168
- 239000011229 interlayer Substances 0.000 claims abstract description 58
- 238000005530 etching Methods 0.000 claims abstract description 31
- 239000004065 semiconductor Substances 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 229920002120 photoresistant polymer Polymers 0.000 claims description 38
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000004380 ashing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 5
- 238000000059 patterning Methods 0.000 claims description 5
- 229910021193 La 2 O 3 Inorganic materials 0.000 claims description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 12
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 238000000206 photolithography Methods 0.000 description 9
- 239000011358 absorbing material Substances 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 229920000620 organic polymer Polymers 0.000 description 4
- 239000005368 silicate glass Substances 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- -1 boro phosphorous Chemical compound 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000006117 anti-reflective coating Substances 0.000 description 1
- 238000000231 atomic layer deposition Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 125000005375 organosiloxane group Chemical group 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000004528 spin coating Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000001039 wet etching Methods 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
- H01L21/76801—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
- H01L21/76808—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 involving intermediate temporary filling with 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
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (20)
- 반도체기판을 준비하고,상기 반도체기판 상에 층간절연막을 형성하고,상기 층간절연막을 패터닝하여 예비비아홀을 형성하고,상기 예비비아홀이 형성된 반도체기판 상에 상기 예비비아홀을 채우고 상기 층간절연막 상부면을 덮는 희생비아보호막을 형성하고,상기 희생비아보호막 상에 희생금속산화막을 형성하고,상기 희생금속산화막을 패터닝하여 상기 예비비아홀의 상부를 가로지르고, 상기 희생비아보호막을 노출시키는 개구부를 갖는 희생금속산화패턴을 형성하고,상기 희생금속산화패턴을 식각마스크로 사용하여 상기 희생비아보호막 및 상기 층간절연막을 식각하여 상기 층간절연막 내에 위치하는 트렌치를 형성하는 것을 포함하는 이중다마신 금속배선 형성방법.
- 제 1 항에 있어서,상기 희생금속산화막은 가시광선영역에서 투명한 것을 특징으로 이중다마신 금속배선 형성방법.
- 제 2 항에 있어서,상기 희생금속산화막은 Al2O3, InSnO, Ta2O5, La2O 3 및 HfO2 로 이루어진 일군으로부터 선택된 적어도 하나의 금속산화막으로 형성되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 제 3 항에 있어서,상기 희생금속산화막은 약 200Å 내지 약 1000Å의 두께로 형성되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 제 4 항에 있어서,상기 층간절연막을 형성하기 전에, 식각저지막을 형성하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 5 항에 있어서,상기 희생금속산화막을 형성한 후, 상기 희생금속산화막 상에 유기 BARC를 형성하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 6 항에 있어서,상기 트렌치를 형성하기 전, 상기 유기 BARC를 제거하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 7 항에 있어서,상기 유기 BARC는 애슁공정을 사용하여 제거되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 제 6 항에 있어서,상기 유기 BARC를 형성하기 전, 상기 희생금속산화막 상에 캐핑층을 형성하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 9 항에 있어서,상기 캐핑층은 poly-Si, FSG, PSG, USG, PE-TEOS, SiOC, SiN, SiON, SiC 및 SiCN막으로 이루어진 일군으로부터 선택된 하나의 물질막으로 형성되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 반도체기판을 준비하고,상기 반도체기판 상에 층간절연막을 형성하고,상기 층간절연막을 패터닝하여 예비비아홀을 형성하고,상기 예비비아홀이 형성된 반도체기판 상에 상기 예비비아홀을 채우고 상기 층간절연막 상부면을 덮는 희생비아보호막을 형성하고,상기 희생비아보호막 상에 희생금속산화막을 형성하고,상기 희생금속산화막 상에 포토레지스트막을 형성하고,상기 포토레지스트막을 ArF 레이저를 사용하여 노광하고 현상하여 상기 예비비아홀의 상부를 가로지르는 개구부를 갖는 포토레지스트 패턴을 형성하고,상기 포토레지스트 패턴을 식각마스크로 사용하여 상기 희생금속산화막을 식각하여 상기 예비비아홀의 상부를 가로지르고, 상기 희생비아보호막을 노출시키는 개구부를 갖는 희생금속산화패턴을 형성하고,상기 희생금속산화패턴을 식각마스크로 사용하여 상기 희생비아보호막 및 상기 층간절연막을 식각하여 상기 층간절연막 내에 위치하는 트렌치를 형성하는 것을 포함하는 이중다마신 금속배선 형성방법.
- 제 11 항에 있어서,상기 희생금속산화막은 가시광선영역에서 투명한 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 제 12 항에 있어서,상기 희생금속산화막은 Al2O3, InSnO, Ta2O5, La2O 3 및 HfO2 로 이루어진 일군으로부터 선택된 적어도 하나의 금속산화막으로 형성되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 제 13 항에 있어서,상기 희생금속산화막은 약 200Å 내지 약 1000Å의 두께로 형성되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 제 14 항에 있어서,상기 층간절연막을 형성하기 전에, 식각저지막을 형성하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 15 항에 있어서,상기 희생금속산화막을 형성한 후, 상기 희생금속산화막 상에 유기 BARC를 형성하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 16 항에 있어서,상기 트렌치를 형성하기 전, 상기 유기 BARC를 제거하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 17 항에 있어서,상기 유기 BARC는 애슁공정을 사용하여 제거되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
- 제 16 항에 있어서,상기 유기 BARC를 형성하기 전, 상기 희생금속산화막 상에 캐핑층을 형성하는 것을 더 포함하는 이중다마신 금속배선 형성방법.
- 제 19 항에 있어서,상기 캐핑층은 poly-Si, FSG, PSG, USG, PE-TEOS, SiOC, SiN, SiON, SiC 및 SiCN막으로 이루어진 일군으로부터 선택된 하나의 물질막으로 형성되는 것을 특징으로 하는 이중다마신 금속배선 형성방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020030087351A KR100583957B1 (ko) | 2003-12-03 | 2003-12-03 | 희생금속산화막을 채택하여 이중다마신 금속배선을형성하는 방법 |
US10/939,930 US7064059B2 (en) | 2003-12-03 | 2004-09-13 | Method of forming dual damascene metal interconnection employing sacrificial metal oxide layer |
EP04027944A EP1538665B1 (en) | 2003-12-03 | 2004-11-25 | Method of forming a dual damascene metal interconnection |
DE602004004483T DE602004004483T2 (de) | 2003-12-03 | 2004-11-25 | Verfahren zur Bildung einer Doppeldamaszener-Metallzwischenverbindung |
CNB2004101001898A CN1306590C (zh) | 2003-12-03 | 2004-12-03 | 采用牺牲金属氧化物层形成双镶嵌金属互连的方法 |
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KR1020030087351A KR100583957B1 (ko) | 2003-12-03 | 2003-12-03 | 희생금속산화막을 채택하여 이중다마신 금속배선을형성하는 방법 |
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KR20050054064A true KR20050054064A (ko) | 2005-06-10 |
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US (1) | US7064059B2 (ko) |
EP (1) | EP1538665B1 (ko) |
KR (1) | KR100583957B1 (ko) |
CN (1) | CN1306590C (ko) |
DE (1) | DE602004004483T2 (ko) |
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WO2017156388A1 (en) * | 2016-03-11 | 2017-09-14 | Inpria Corporation | Pre-patterned lithography templates, processes based on radiation patterning using the templates and processes to form the templates |
US11886116B2 (en) | 2020-05-06 | 2024-01-30 | Inpria Corporation | Multiple patterning with organometallic photopatternable layers with intermediate freeze steps |
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US7064059B2 (en) | 2006-06-20 |
DE602004004483T2 (de) | 2007-05-24 |
US20050124149A1 (en) | 2005-06-09 |
CN1624897A (zh) | 2005-06-08 |
EP1538665B1 (en) | 2007-01-24 |
EP1538665A1 (en) | 2005-06-08 |
DE602004004483D1 (de) | 2007-03-15 |
KR100583957B1 (ko) | 2006-05-26 |
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