KR100977947B1 - 반도체 장치 및 반도체 장치 제조 공정 - Google Patents
반도체 장치 및 반도체 장치 제조 공정 Download PDFInfo
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- KR100977947B1 KR100977947B1 KR1020030031929A KR20030031929A KR100977947B1 KR 100977947 B1 KR100977947 B1 KR 100977947B1 KR 1020030031929 A KR1020030031929 A KR 1020030031929A KR 20030031929 A KR20030031929 A KR 20030031929A KR 100977947 B1 KR100977947 B1 KR 100977947B1
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- dielectric layer
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- etch stop
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 19
- 230000004888 barrier function Effects 0.000 title abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 109
- 239000002184 metal Substances 0.000 claims abstract description 109
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 26
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 239000003989 dielectric material Substances 0.000 abstract description 29
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 238000001465 metallisation Methods 0.000 abstract description 5
- 239000010408 film Substances 0.000 description 49
- 230000008569 process Effects 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910001092 metal group alloy Inorganic materials 0.000 description 4
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- -1 nitrogen ions Chemical class 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 235000014653 Carica parviflora Nutrition 0.000 description 1
- 241000243321 Cnidaria Species 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
- 230000002411 adverse Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005324 grain boundary diffusion Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000006902 nitrogenation reaction Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-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
- H01L21/02—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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- H—ELECTRICITY
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- 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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- 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
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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
- H01L21/76801—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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- 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
- H01L21/76822—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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- 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
- H01L21/76829—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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- H01L23/00—Details of semiconductor or other solid state devices
- 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
- H01L23/5226—Via connections in a multilevel interconnection structure
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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
- H01L23/53204—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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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
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- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
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- Plasma & Fusion (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (24)
- 상부에 제 1 에칭 정지층(first etch stop layer)이 배치된 제 1 유전체층과,상기 제 1 유전체층내에 배치된 제 1 금속 러너(metal runner)와,상기 제 1 유전체층 위에 배치되어 제 1 에칭 정지층과 접촉하고, 상부에 제 2 에칭 정지층이 배치된 제 2 유전체층과,상기 제 2 유전체층 위에 배치되어 상기 제 2 에칭 정지층과 접촉하는 제 3 유전체층과.상기 제 2 유전체층과 상기 제 3 유전체층과 상기 제 1 에칭 정지층 및 상기 제 2 에칭 정지층을 통과하여 상기 제 1 금속 러너의 표면에서 종료되는 개구부 - 상기 개구부는 상기 제 2 에칭 정지층의 표면에 의해 이격된 유전체 표면들을 가지며, 상기 개구부내에 배치된 상기 제 2 에칭 정지층의 표면을 따르기보다는 상기 개구부내의 유전체 표면들의 각각을 따라서 배치된 제 1 실리콘 질화물 막을 가짐 - 와,상기 개구부내에 배치되고, 상기 제 1 실리콘 질화물 막의 표면과, 상기 제 1 에칭 정지층 및 상기 제 2 에칭 정지층의 표면 및 상기 제 1 금속 러너의 표면을 따라 배치된 제 1 내열성 금속막과,상기 개구부내 및 상기 제 1 내열성 금속막의 표면상에 배치된 제 1 씨드층과,상기 개구부내에 배치되어 상기 제 1 씨드층과 접촉하며, 상기 개구부의 나머지 부분에 충진되는 금속 플러그(metal plug)를 포함하되,상기 제 1 금속 러너는 상기 제 1 유전체층의 아래에 배치된 제 4 유전체층 위에 배치된 제 3 에칭 정지층과 상기 제 1 유전체층을 통해서 연장되는 개구부내에 배치되며,상기 제 1 금속 러너는상기 제 1 유전체층의 개구부내에 배치된 상기 제 3 에칭 정지층의 표면을 따르기 보다는, 상기 제 1 유전체층의 개구부내에서 상기 제 1 유전체층의 표면을 따라 배치된 제 2 실리콘 질화물 막과,상기 제 1 유전체층의 개구부내에 배치되고, 상기 제 2 실리콘 질화물 막의 표면과, 상기 제 3 에칭 정지층의 표면 및 상기 제 4 유전체층의 표면을 따라 배치된 제 2 내열성 금속막과,상기 제 1 유전체층의 개구부내에 배치되고 상기 제 2 내열성 금속막의 표면상에 배치된 제 2 씨드층을 포함하며,상기 제 1 금속 러너는 상기 제 2 씨드층과 접촉하여 상기 제 1 유전체층의 개구부의 나머지 부분에 충진되는반도체 장치.
- 삭제
- 제 1 항에 있어서,상기 금속 플러그는 이중 대마신 상호 접속 구조(dual damascene interconnect structure)를 형성하는반도체 장치.
- 삭제
- 삭제
- 삭제
- 반도체 장치의 제조 공정으로서,제 1 유전체층을 형성하는 단계와,상기 제 1 유전체층내에 제 1 금속 러너를 형성하는 단계와,상기 제 1 유전체층 위에 제 1 에칭 정지층을 형성하는 단계와,상기 제 1 에칭 정지층상에 제 2 유전체층을 형성하는 단계와,상기 제 2 유전체층상에 제 2 에칭 정지층을 형성하는 단계와,상기 제 2 에칭 정지층상에 제 3 유전체층을 형성하는 단계와,상기 제 2 유전체층과 상기 제 3 유전체층과 상기 제 1 에칭 정지층 및 상기 제 2 에칭 정지층을 통과하여 상기 제 1 금속 러너의 표면에서 종료되는 개구부 - 상기 개구부는 상기 제 2 에칭 정지층의 표면에 의해 이격되는 유전체 표면을 가짐 - 를 형성하는 단계와,상기 개구부내에 배치된 상기 제 2 에칭 정지층의 표면을 따르기 보다는 상기 개구부내의 상기 유전체 표면의 각각을 따라 제 1 실리콘 질화물 막을 형성하는 단계와,상기 개구부내에 배치되고, 상기 제 1 실리콘 질화물 막의 표면과, 상기 제 1 에칭 정지층 및 상기 제 2 에칭 정지층의 표면 및 상기 제 1 금속 러너의 표면을 따라 배치되는 제 1 내열성 금속막을 형성하는 단계와,상기 개구부내 및 상기 제 1 내열성 금속막의 표면상에 배치된 제 1 씨드층을 형성하는 단계와,상기 개구부내에서 상기 제 1 씨드층과 접촉하는 금속 플러그(metal plug)를 형성하되, 상기 금속 플러그는 상기 개구부의 나머지 부분에 충진되는, 단계를 포함하고,상기 제 1 유전체층을 형성하는 단계는 제 4 유전체층 위에 배치된 제 3 에칭 정지층상에 제 1 유전체층을 형성하는 단계를 포함하며,상기 제 1 금속 러너를 형성하는 단계는상기 제 1 유전체층과 상기 제 3 에칭 정지층을 통과하여 상기 제 4 유전체층의 표면까지 개구부를 형성하여, 상기 제 1 유전체층의 유전체 표면과 상기 제 3 에칭 정지층의 표면들을 노출시키는 단계와,상기 제 1 유전체층의 개구부내에 배치된 상기 제 3 에칭 정지층의 표면을 따르기 보다는, 상기 제 1 유전체층의 개구부내에서 상기 제 1 유전체층의 유전체 표면의 각각을 따라 제 2 실리콘 질화물 막을 형성하는 단계와,상기 제 2 실리콘 질화물 막의 표면과, 상기 제 3 에칭 정지층의 표면 및 상기 제 4 유전체층의 표면을 따라서 상기 제 1 유전체층의 개구부내에 배치되는 제 2 내열성 금속막을 형성하는 단계와,상기 제 1 유전체층의 개구부내 및 상기 제 2 내열성 금속막의 표면상에 배치되는 제 2 씨드층을 형성하는 단계와,상기 제 1 유전체층의 개구부내에서 상기 제 2 씨드층과 접촉하는 금속 플러그를 형성하되, 상기 금속 플러그는 상기 제 1 유전체층의 개구부의 나머지 부분에 충진되는, 단계를 포함하는반도체 장치 제조 공정.
- 삭제
- 제 7 항에 있어서,상기 제 1 실리콘 질화물 막을 형성하는 단계는,상기 제 2 유전체층과 상기 제 3 유전체층의 표면을 질소 함유 물질에 노출시킴으로써, 상기 개구부에 인접한 상기 제 2 유전체층과 상기 제 3 유전체층의 표면의 적어도 일부분의 화학 성분을 실리콘 질화물로 전환시키는 단계를 포함하는,반도체 장치 제조 공정.
- 제 7 항에 있어서,상기 제 1 내열성 금속막을 형성하는 단계는 최종 두께가 150Å인 제 1 내열성 금속막을 형성하는 단계를 포함하는,반도체 장치 제조 공정.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 제 7 항에 있어서,상기 제 1 씨드층과 금속 플러그는 구리를 포함하는반도체 장치 제조 공정.
- 제 1 항에 있어서,상기 제 1 내열성 금속막은 150Å의 두께를 가지는반도체 장치.
- 제 1 항에 있어서,상기 제 1 씨드층과 상기 금속 플러그는 구리를 포함하는반도체 장치.
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US10/153,231 US6686662B2 (en) | 2002-05-21 | 2002-05-21 | Semiconductor device barrier layer |
US10/153,231 | 2002-05-21 |
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JP (2) | JP2004031937A (ko) |
KR (1) | KR100977947B1 (ko) |
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JP2004031937A (ja) | 2004-01-29 |
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GB0220209D0 (en) | 2002-10-09 |
JP2011205155A (ja) | 2011-10-13 |
KR20030091700A (ko) | 2003-12-03 |
US20030218256A1 (en) | 2003-11-27 |
US6686662B2 (en) | 2004-02-03 |
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