KR100516337B1 - 반도체 디바이스 및 그 제조 방법 - Google Patents
반도체 디바이스 및 그 제조 방법 Download PDFInfo
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- KR100516337B1 KR100516337B1 KR10-2003-0009317A KR20030009317A KR100516337B1 KR 100516337 B1 KR100516337 B1 KR 100516337B1 KR 20030009317 A KR20030009317 A KR 20030009317A KR 100516337 B1 KR100516337 B1 KR 100516337B1
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- Prior art keywords
- interlayer insulating
- film
- insulating film
- barrier metal
- gas
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- 239000004065 semiconductor Substances 0.000 title claims description 26
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims abstract description 118
- 229910052751 metal Inorganic materials 0.000 claims abstract description 105
- 239000002184 metal Substances 0.000 claims abstract description 105
- 230000004888 barrier function Effects 0.000 claims abstract description 97
- 239000007789 gas Substances 0.000 claims abstract description 84
- 238000009832 plasma treatment Methods 0.000 claims abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 67
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 37
- 238000000151 deposition Methods 0.000 claims abstract description 30
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 22
- 239000001257 hydrogen Substances 0.000 claims abstract description 21
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims abstract description 19
- 239000011229 interlayer Substances 0.000 claims description 100
- 238000005530 etching Methods 0.000 claims description 52
- 239000010410 layer Substances 0.000 claims description 48
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 39
- 238000004544 sputter deposition Methods 0.000 claims description 24
- 229910052734 helium Inorganic materials 0.000 claims description 13
- 229920003209 poly(hydridosilsesquioxane) Polymers 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000011261 inert gas Substances 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 230000008021 deposition Effects 0.000 claims description 6
- 244000025254 Cannabis sativa Species 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 125000000962 organic group Chemical group 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052743 krypton Inorganic materials 0.000 claims description 4
- 229910052754 neon Inorganic materials 0.000 claims description 4
- 229910052704 radon Inorganic materials 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052724 xenon Inorganic materials 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 150000002431 hydrogen Chemical class 0.000 claims 2
- GPTXWRGISTZRIO-UHFFFAOYSA-N chlorquinaldol Chemical compound ClC1=CC(Cl)=C(O)C2=NC(C)=CC=C21 GPTXWRGISTZRIO-UHFFFAOYSA-N 0.000 claims 1
- 239000010408 film Substances 0.000 description 270
- 230000008569 process Effects 0.000 description 70
- 238000001312 dry etching Methods 0.000 description 25
- 230000009977 dual effect Effects 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000007747 plating Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 238000004380 ashing Methods 0.000 description 8
- 238000000206 photolithography Methods 0.000 description 8
- 241000894007 species Species 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 7
- 229910010271 silicon carbide Inorganic materials 0.000 description 7
- 229910010272 inorganic material Inorganic materials 0.000 description 6
- 239000011147 inorganic material Substances 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000002407 reforming Methods 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 238000005229 chemical vapour deposition Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910052814 silicon oxide Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 229910004541 SiN Inorganic materials 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 125000001165 hydrophobic group Chemical group 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 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
- 239000010409 thin film Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
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- 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
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- 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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/32051—Deposition of metallic or metal-silicide layers
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- 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
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- 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
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
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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
- H01L21/76802—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
- H01L21/76811—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 multiple stacked pre-patterned masks
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
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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
- H01L21/76802—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
- H01L21/76814—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 post-treatment or after-treatment, e.g. cleaning or removal of oxides on underlying conductors
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- 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
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76826—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by contacting the layer with gases, liquids or plasmas
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- 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
- H01L21/76829—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
- H01L21/76831—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 in via holes or trenches, e.g. non-conductive sidewall liners
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- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—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
- 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
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
- H01L23/53238—Additional layers associated with copper layers, e.g. adhesion, barrier, cladding layers
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- H01L23/522—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
- 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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- H01L23/522—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
- 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
- H01L23/5329—Insulating materials
- H01L23/53295—Stacked insulating layers
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Abstract
Description
Claims (18)
- Si 및 C 의 결합을 갖는 저유전막으로 형성되는 절연층;상기 절연층에 형성되는 비아 홀 및 배선 그루브 중 하나의 표면 상에 형성되고, 상기 저유전막의 일측 상에서는 TaN (tantalum nitride) 으로 이루어지고 타측 상에서는 Ta (tantalum) 로 이루어지는 배리어 메탈; 및상기 배리어 메탈을 통해, 상기 절연층에 형성된 상기 비아 홀 및 상기 배선 그루브 중 하나에 매입되는 배선 재료를 포함하며,상기 저유전막은 상기 배리어 메탈이 접촉하는 표면 상에, 상기 저유전막의 내부 영역에 비해 비교적 저농도의 유기 성분을 갖고 탄소 (C) 농도가 7 원자% 이하인 영역을 갖는 반도체 디바이스.
- 삭제
- 제 1 항에 있어서,상기 영역의 탄소 (C) 농도는 7 원자% 이하이며 2 원자% 이상인 것을 특징으로 하는 반도체 디바이스.
- 제 1 항에 있어서,상기 영역은 25 nm 이하의 두께를 갖는 것을 특징으로 하는 반도체 디바이스.
- 제 1 항에 있어서,상기 영역은 Si 와 수소 (H) 의 결합을 갖는 것을 특징으로 하는 반도체 디바이스.
- 제 1 항에 있어서,상기 저유전막은 MSQ (methyl silsesquioxane), MHSQ (methylated hydrogen silsesquioxane), SiC (silicon carbide), SiOC 또는 SiCOH (silicon oxycarbide or carbon-doped glass), OSG (organo silicated grass), SiCN (silicon carvonitride), 및 이들 중 하나의 다공성막으로 이루어진 군으로부터 선택되는 어느 하나인 것을 특징으로 하는 반도체 디바이스.
- 삭제
- 저유전막의 노출된 표면상의 유기 성분으로 이루어진 기의 적어도 일부를 수소로 치환할 수 있는 가스, 및 유기 성분으로 이루어진 기의 적어도 일부를 분해하여 댕글링 결합을 형성할 수 있는 가스 중 하나를 이용하여, 플라즈마 처리를 수행하는 단계; 및배리어 메탈을 통해, 유기 성분으로 이루어진 기와 Si 의 결합을 갖는 상기 저유전막을 포함하는 절연층에 형성된 비아 홀 및 배선 그루브 중의 하나에 배선 재료를 매입하는 단계를 포함하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 배선 패턴이 형성된 기판상에, 적어도 제 1 층간 절연막 및 제 2 층간 절연막을 순차적으로 형성하는 단계;상기 제 2 층간 절연막상에 형성된 제 1 레지스트 패턴을 이용하여, 상기 제 1 층간 절연막 및 상기 제 2 층간 절연막을 관통하는 비아 홀을 형성하는 단계;상기 제 1 레지스트 패턴을 제거한 다음, 상기 제 2 층간 절연막상에 형성된 제 2 레지스트 패턴을 이용하는 상기 제 2 층간 절연막의 에칭에 의해, 트렌치 패턴을 형성하는 단계;상기 제 2 층간 절연막상에 그리고 상기 비아 홀과 상기 트렌치 패턴의 내벽상에 배리어 메탈을 증착하는 단계;배선 재료를 증착한 다음, 상기 배선 재료를 상기 비아 홀과 상기 트렌치 패턴의 내부에 매입하는 단계; 및CMP 에 의해, 상기 배선 재료와 상기 배리어 메탈의 여분 (extra portion) 을 제거하고 표면을 평탄화하는 단계를 포함하고,상기 제 1 층간 절연막 및 상기 제 2 층간 절연막 중 적어도 하나는 유기 성분으로 이루어진 기와 Si 의 결합을 가지며;상기 저유전막의 노출된 표면상의 유기 성분으로 이루어진 기의 적어도 일부를 수소로 치환할 수 있는 가스, 및 유기 성분으로 이루어진 기의 적어도 일부를 분해하여 댕글링 결합을 형성하는 가스 중 하나를 이용하여, 상기 배리어 메탈을 증착하기 전에, 플라즈마 처리를 수행하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 배선 패턴이 형성된 기판상에, 적어도 제 1 층간 절연막, 제 2 층간 절연막, 및 하드 마스크 재료를 증착하는 단계;상기 하드 마스크 재료상에 형성된 제 1 레지스트 패턴을 이용하는 상기 하드 마스크 재료의 에칭에 의해, 하드 마스크를 형성하는 단계;상기 하드 마스크상에 형성된 제 2 레지스트 패턴을 이용하여, 상기 제 1 층간 절연막 및 상기 제 2 층간 절연막을 관통하는 비아 홀을 형성하는 단계;상기 제 2 레지스트 패턴을 제거한 다음, 상기 하드 마스크를 이용하는 상기 제 2 층간 절연막의 에칭에 의해, 트렌치 패턴을 형성하는 단계;상기 제 2 층간 절연막 상에 그리고 상기 비아 홀과 상기 트렌치 패턴의 내벽상에 배리어 메탈을 증착하는 단계;배선 재료를 증착한 다음, 상기 배선 재료를 상기 비아 홀과 상기 트렌치 패턴의 내부에 매입하는 단계; 및CMP 에 의해, 상기 배선 재료와 상기 배리어 메탈의 여분을 제거하고 표면을 평탄화하는 단계를 포함하고,상기 제 1 층간 절연막, 상기 제 2 층간 절연막, 및 상기 하드 마스크 중 적어도 하나는 유기 성분으로 이루어진 기와 Si 의 결합을 가지며;상기 저유전막의 노출된 표면상의 유기 성분으로 이루어진 기의 적어도 일부를 수소로 치환할 수 있는 가스, 및 유기 성분으로 이루어진 기의 적어도 일부를 분해하여 댕글링 결합을 형성하는 가스 중 하나를 이용하여, 상기 배리어 메탈을 증착하기 전에, 플라즈마 처리를 수행하는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 8 항 내지 제 10 항 중의 어느 한 항에 있어서,상기 플라즈마 처리와 상기 배리어 메탈의 증착 단계는 동일한 장치 및 진공의 조건 중 하나에서 (under one of in situ and in vacuo conditions) 수행되는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 8 항 내지 제 10 항 중의 어느 한 항에 있어서,상기 플라즈마 처리 이전에 Ar 가스를 이용하여 스퍼터링을 수행하는 단계를 더 포함하고,상기 Ar 스퍼터링, 상기 플라즈마 처리, 및 상기 배리어 메탈의 증착 단계는, 동일한 장치 및 진공의 조건 중 하나에서 수행되는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 8 항 내지 제 10 항 중의 어느 한 항에 있어서,상기 저유전막은 MSQ (methyl silsesquioxane), MHSQ (methylated hydrogen silsesquioxane), SiC (silicon carbide), SiOC 또는 SiCOH (silicon oxycarbide or carbon-doped glass), OSG (organo silicated grass), SiCN (silicon carvonitride), 및 이들 중 하나의 다공성막으로 이루어진 군으로부터 선택되는 어느 하나인 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 8 항 내지 제 10 항 중의 어느 한 항에 있어서,수소와 비활성 기체의 혼합 가스가 상기 플라즈마 처리용 가스로 이용되는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 8 항 내지 제 10 항 중의 어느 한 항에 있어서,비활성 기체, 및 수소와 비활성 기체의 혼합 가스 중 하나가 상기 플라즈마 처리용 가스로 이용되고,상기 플라즈마 처리 동안, RF 바이어스가 인가되는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 14 항에 있어서,상기 비활성 기체는 He, Ne, Ar, Kr, Xe, 및 Rn 으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 15 항에 있어서,상기 비활성 기체는 He, Ne, Ar, Kr, Xe, 및 Rn 으로 이루어진 군으로부터 선택되는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
- 제 15 항에 있어서,상기 플라즈마 처리용 가스로 He 이 이용될 경우, 상기 RF 바이어스의 전력은 250 W 이상에서 400 W 이하의 범위로 설정되는 것을 특징으로 하는 반도체 디바이스의 제조 방법.
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KR101444527B1 (ko) * | 2011-08-05 | 2014-09-24 | 도쿄엘렉트론가부시키가이샤 | 반도체 장치의 제조 방법 |
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US20060141778A1 (en) | 2006-06-29 |
US7563705B2 (en) | 2009-07-21 |
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US20030155657A1 (en) | 2003-08-21 |
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