KR100327297B1 - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR100327297B1 KR100327297B1 KR1019990009864A KR19990009864A KR100327297B1 KR 100327297 B1 KR100327297 B1 KR 100327297B1 KR 1019990009864 A KR1019990009864 A KR 1019990009864A KR 19990009864 A KR19990009864 A KR 19990009864A KR 100327297 B1 KR100327297 B1 KR 100327297B1
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- Prior art keywords
- insulating film
- interlayer insulating
- film
- forming
- semiconductor device
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims description 75
- 239000011229 interlayer Substances 0.000 claims abstract description 182
- 238000005498 polishing Methods 0.000 claims abstract description 66
- 239000004020 conductor Substances 0.000 claims description 74
- 239000010410 layer Substances 0.000 claims description 69
- 230000008569 process Effects 0.000 claims description 62
- 238000004519 manufacturing process Methods 0.000 claims description 41
- 239000000126 substance Substances 0.000 claims description 31
- 239000000758 substrate Substances 0.000 claims description 21
- 229920000642 polymer Polymers 0.000 claims description 14
- 230000008018 melting Effects 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 239000004215 Carbon black (E152) Substances 0.000 claims description 9
- 238000011049 filling Methods 0.000 claims description 9
- 229930195733 hydrocarbon Natural products 0.000 claims description 9
- 150000002430 hydrocarbons Chemical class 0.000 claims description 9
- 125000003118 aryl group Chemical group 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 4
- 238000000059 patterning Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 25
- 238000005530 etching Methods 0.000 description 15
- 150000002736 metal compounds Chemical class 0.000 description 10
- 238000004544 sputter deposition Methods 0.000 description 9
- 238000004528 spin coating Methods 0.000 description 8
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 7
- 238000001020 plasma etching Methods 0.000 description 7
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 6
- 230000003071 parasitic effect Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 238000007517 polishing process Methods 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- PVFSDGKDKFSOTB-UHFFFAOYSA-K iron(3+);triacetate Chemical compound [Fe+3].CC([O-])=O.CC([O-])=O.CC([O-])=O PVFSDGKDKFSOTB-UHFFFAOYSA-K 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- 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
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- 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
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- H01L21/76829—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 characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
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- H01L21/76829—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 characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
- H01L21/76834—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 characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers formation of thin insulating films on the sidewalls or on top of conductors
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- H01L21/76835—Combinations of two or more different dielectric layers having a low dielectric constant
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- 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
- H01L21/76837—Filling up the space between adjacent conductive structures; Gap-filling properties of dielectrics
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- 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
- H01L21/7684—Smoothing; Planarisation
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
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- 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
- H01L21/76882—Reflowing or applying of pressure to better fill the contact hole
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Abstract
Description
Cu연마조건 Al연마조건 W연마조건 |
플라즈마 SiO2막 120A/min 130A/min 110A/min플라즈마 SiN막 350 300 240유기 SOG 10 12 13 |
Claims (25)
- 기판 상에 층간절연막를 형성하는 공정과,상기 층간 절연막 상에 유기SOG막을 형성하는 공정과,상기 유기S0G막 및 상기 층간 절연막을 패터닝하여, 상기 유기SOG막을 관통하고 상기 층간 절연막 중에 도달하는 오목부를 형성하는 공정과,상기 유기S0G막 상에 상기 오목부를 매립하도록 도체층을 형성하는 공정과,상기 도체층 중 상기 유기S0G막보다도 위에 위치하는 부분을 상기 유기SOG막을 스토퍼로 화학기계연마에 의해 제거하고, 상기 오목부를 매립하는 도체패턴을 형성하는 공정으로 되는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 층간 절연막은 탄화수소계 중합체로 되는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 층간 절연막은 방향족계 중합체로 되는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항에 있어서, 상기 도체층은 Cu로 되는 것을 특징으로 하는 반도체장치의 제조방법.
- 제4항에 있어서, 상기 오목부를 형성하는 공정 후, 상기 도체층을 형성하는 공정보다도 전에, 상기 오목부의 표면을 상기 오목부의 표면형상을 따른 고융점금속막으로 덮는 공정을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 오목부는 상기 층간 절연막을 관통하도록 형성되는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 도체패턴을 형성하는 공정 후, 상기 유기S1OG막 상에 평탄화 절연막을 형성하는 공정과, 상기 평탄화 절연막 중에 오목부를 형성하는 공정과, 상기 평탄화 절연막 중의 오목부를 매립하도록 별도의 도체패턴을 형성하는 공정을 더 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제7항에 있어서, 상기 평탄화 절연막을 형성하는 공정은 액체상의 절연막을 상기 액체상의 절연막이 상기 도체패턴을 덮도록 도포에 의해 형성하는 공정을 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제7항에 있어서, 상기 평탄화 절연막을 형성하는 공정은 상기 유기S0G막 상에 별도의 절연막을 형성하고, 다시 상기 별도의 절연막을 화학기계연마에 의해 평탄화하는 공정을 더 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 제1항 내지 제5항 중 어느 한 항에 있어서, 상기 도체패턴을 형성하는 공정 후, 상기 유기SOG막 상에 액체상의 절연막을 도포함으로써 제1 평탄화 층간 절연막을 형성하는 공정과, 상기 제1 평탄화 층간 절연막 상에 제2 평탄화 층간 절연막을 형성하는 공정과, 상기 제2 평탄화 층간 절연막을 관통하여 상기 제1 평탄화 층간 절연막에 도달하는 오목부를 형성하는 공정과, 상기 오목부를 매립하도록 다마신구조를 갖는 별도의 도체패턴을 형성하는 공정을 더 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 기판 상에 층간 절연막을 형성하는 공정과,상기 층간 절연막 중에 배선홈을 형성하는 공정과,상기 배선홈을 매립하도록 도체층을 형성하는 공정과,상기 도체층 중 상기 층간 절연막을 덮는 부분을 화학기계연마에 의해 제거하고, 상기 배선홈을 매립하는 도체패턴을 형성하는 공정을 포함하는 반도체장치의 제조방법에 있어서,상기 도체패턴을 덮도록 상기 층간 절연막 상에 액체상의 절연막를 도포하는 공정을 더 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 기판 상에 층간 절연막을 형성하는 공정과,상기 층간 절연막 중에 배선홈을 형성하는 공정과,상기 배선홈을 매립하도록 도체층을 형성하는 공정과,상기 도체층 중 상기 층간 절연막을 덮는 부분을 화학기계연마에 의해 제거하고, 상기 배선 홈을 매립하는 도체패턴을 형성하는 공정을 포함하는 반도체장치의 제조방법에 있어서,상기 도체패턴을 덮도록 상기 층간 절연막 상에 별도의 층간 절연막을 형성하는 공정과,상기 별도의 층간 절연막을 화학기계연마에 의해 평탄화하는 공정을 더 포함하는 것을 특징으로 하는 반도체장치의 제조방법.
- 기판과,상기 기판 상에 형성된 층간 절연막과,상기 층간 절연막 상에 형성된 별도의 절연막과,상기 별도의 절연막을 관통하여 형성되고, 상기 층간 절연막 중에 도달하는 오목부와,상기 오목부를 매립하는 도체패턴을 갖고,상기 별도의 절연막은 유기S0G로 되는 것을 특징으로 하는 반도체장치.
- 제13항에 있어서, 상기 도체패턴은 Cu로 되는 것을 특징으로 하는 반도체장치.
- 제13항 또는 제14항에 있어서, 상기 층간 절연막은 탄화수소계 중합체로 되는 것을 특징으로 하는 반도체장치.
- 제13항 또는 제14항에 있어서, 상기 층간 절연막은 방향족중합체로 되는 것을 특징으로 하는 반도체장치.
- 제13항 또는 제14항에 있어서, 상기 홈과 상기 도체패턴과의 사이에 상기 오목부의 형상을 따른 형상의 도체막을 더 포함하는 것을 특징으로 하는 반도체장치.
- 제13항 또는 제14항에 있어서, 상기 오목부는 상기 층간 절연막을 관통하는 것을 특징으로 하는 반도체장치.
- 기판과,상기 기판 상에 형성된 제1 층간 절연막과,상기 제l 층간 절연막 중에 형성된 제1 오목부와,상기 제1 오목부를 매립하는 제l 도체패턴과,상기 제1 층간 절연막 상에 상기 제1 도체패턴을 덮도록 형성된 평탄화 주면을 갖는 제2 층간 절연막과,상기 제2 층간 절연막 중에 형성된 제2 오목부와,상기 제2 오목부를 매립하는 제2 도체패턴으로 되는 것을 특징으로 하는 반도체장치.
- 제19항에 있어서, 상기 제2 층간 절연막은 유기절연막으로 되는 것을 특징으로 하는 반도체장치.
- 제19항에 있어서, 상기 제2 층간 절연막은 평탄한 주면을 갖는 유기절연막으로 되는 제1 막과, 상기 제1 막 상에 형성된 제2 막으로 되는 것을 특징으로 하는 반도체장치.
- 제19항 내지 제21항 중 어느 한 항에 있어서, 상기 제1 층간 절연연막 중에 형성된 제1 도체패턴은 제1 피치로 반복되고, 상기 제2 층간 절연막 중에 형성된 제2 도체패턴은 상기 제1 피치보다도 작은 제2 피치로 반복되는 것을 특징으로 하는 반도체장치.
- 제19항 내지 제21항 중 어느 한 항에 있어서, 상기 제1 층간 절연막 중에 형성된 제1 도체패턴은 제1 방향으로 연재하고, 상기 제2 층간 절연막 중에 형성된 제2 도체패턴은 상기 제1 방향과는 다른 제2 방향으로 연재하는 것을 특징으로 하는 반도체장치.
- 제19항 내지 제21항 중 어느 한 항에 있어서, 상기 제1 층간 절연막 중에 형성된 제l 도체패턴은 제1 방향으로 연재하고, 상기 제2 층간 절연막 중에 형성된 제2 도체패턴도 상기 제1 방향으로 연재하는 것을 특징으로 하는 반도체장치.
- 제19항에 있어서, 상기 제2 층간 절연막은 평탄한 주면을 갖는 무기절연막으로 되는 것을 특징으로 하는 반도체장치.
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US6417116B2 (en) | 2002-07-09 |
JP3469771B2 (ja) | 2003-11-25 |
US20020151190A1 (en) | 2002-10-17 |
US7041586B2 (en) | 2006-05-09 |
US20010044201A1 (en) | 2001-11-22 |
JPH11274122A (ja) | 1999-10-08 |
KR19990078156A (ko) | 1999-10-25 |
TW408437B (en) | 2000-10-11 |
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