KR100510917B1 - 장벽층형성방법 - Google Patents
장벽층형성방법 Download PDFInfo
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- KR100510917B1 KR100510917B1 KR1019970061322A KR19970061322A KR100510917B1 KR 100510917 B1 KR100510917 B1 KR 100510917B1 KR 1019970061322 A KR1019970061322 A KR 1019970061322A KR 19970061322 A KR19970061322 A KR 19970061322A KR 100510917 B1 KR100510917 B1 KR 100510917B1
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- South Korea
- Prior art keywords
- layer
- barrier layer
- barrier
- nitrogen
- oxygen
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- 230000004888 barrier function Effects 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 61
- 230000015572 biosynthetic process Effects 0.000 title description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000001301 oxygen Substances 0.000 claims abstract description 54
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 54
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000005121 nitriding Methods 0.000 claims abstract description 18
- 238000000151 deposition Methods 0.000 claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 70
- 229910052757 nitrogen Inorganic materials 0.000 claims description 32
- 239000010936 titanium Substances 0.000 claims description 31
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 15
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 11
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 11
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 238000005240 physical vapour deposition Methods 0.000 claims description 5
- 229910002651 NO3 Inorganic materials 0.000 claims description 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 4
- 150000002829 nitrogen Chemical class 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 4
- -1 nitrogen nitride Chemical class 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 55
- 210000002381 plasma Anatomy 0.000 description 41
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 33
- 230000008569 process Effects 0.000 description 31
- 235000012431 wafers Nutrition 0.000 description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 24
- 238000011282 treatment Methods 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- 229910052782 aluminium Inorganic materials 0.000 description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 238000000137 annealing Methods 0.000 description 13
- 238000006243 chemical reaction Methods 0.000 description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 12
- 229910021529 ammonia Inorganic materials 0.000 description 12
- 238000007872 degassing Methods 0.000 description 11
- 238000009832 plasma treatment Methods 0.000 description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 9
- 229910000838 Al alloy Inorganic materials 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 229910052786 argon Inorganic materials 0.000 description 6
- 238000012421 spiking Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000007420 reactivation Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 238000004544 sputter deposition Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 150000002500 ions Chemical group 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 239000013077 target material Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 238000006213 oxygenation reaction Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007687 exposure technique Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000010849 ion bombardment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005546 reactive sputtering Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052990 silicon hydride Inorganic materials 0.000 description 1
- 238000006557 surface reaction Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
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
- H01L21/70—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
- H01L21/76846—Layer combinations
-
- 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
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/2855—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by physical means, e.g. sputtering, evaporation
-
- 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
- H01L21/76853—Barrier, adhesion or liner layers characterized by particular after-treatment steps
- H01L21/76855—After-treatment introducing at least one additional element into the layer
- H01L21/76856—After-treatment introducing at least one additional element into the layer by treatment in plasmas or gaseous environments, e.g. nitriding a refractory metal liner
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- 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)
- Plasma & Fusion (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims (18)
- 티타늄 질화물층을 침적하고 이 층을 산소에 노출하고 산화된 층의 표면을 질화하는 단계를 포함하는 반도체 표면상에 장벽을 형성하는 장벽층 형성방법.
- 제 1 항에 있어서, 질화단계가 질소함유 플라즈마를 사용하여 수행됨을 특징으로 하는 장벽층 형성방법.
- 제 1 항 또는 2 항에 있어서, 장벽층이 질소의 존재하에서 플라즈마 또는 UV에 의해 생성된 원자수소에 노출되어서 장벽층에 있는 산화된 물질을 질화시킴을 특징으로 하는 장벽층 형성방법.
- 제 1 항 또는 2 항에 있어서, 원자 수소를 사용하고 후속으로 층을 질화시켜서 장벽 표면에서 산소를 제거하는 단계를 포함하는 장벽층 형성방법.
- 제 3 항에 있어서, 수소:질소의 비율이 1:10 내지 3:1 임을 특징으로 하는 장벽층 형성방법.
- 제 3항에 있어서, 수소가 NH3 형태로 공급됨을 특징으로하는 장벽층 형성방법.
- 제 6 항에 있어서, NH3 가 질화질소의 적어도 일부를 공급함을 특징으로 하는 장벽층 형성방법.
- 티타늄 질화물층을 침적시키고 층의 표면을 활성화된 질소에 노출시켜서 층에 있는 자유 표면 티타늄을 질화시켜 티타늄 질화물을 형성시키며, 티타늄 질화물 층을 질화단계 이전에 산소에 노출시키는 단계를 포함하는 작업편 표면상에 장벽층을 형성하는 장벽층 형성방법.
- 제 8 항에 있어서, 표면이 활성 NH3 에 노출됨을 특징으로 하는 장벽층 형성방법.
- 제 9 항에 있어서, 표면이 활성 NH3 플라즈마에 노출됨을 특징으로 하는 장벽층 형성방법.
- 제 8 항 내지 10 항중 한항에 있어서, 티타늄 질화물층이 질화단계 이전에 산소에 노출됨을 특징으로 하는 장벽층 형성방법.
- 제 8 항 내지 10 항중 한항에 있어서, 티타늄 질화물층의 침적과 질화단계 사이에 진공파괴 단계를 포함하는 장벽층 형성방법.
- 티타늄 질화물 장벽층을 초기에 침적시키고, 장벽층을 재활성화(reactivation)시키고 전도성 물질을 침적시키는 단계를 포함하는 작업편상에 전도성 물질을 침적하는 장벽층 형성방법.
- 제 13 항에 있어서, 장벽층이 물리 증착을 사용하여 침적됨을 특징으로 하는 장벽층 형성방법.
- 제 13 항 또는 14 항에 있어서, 장벽층이 순수한 티타늄층상에 침적됨을 특징으로 하는 장벽층 형성방법.
- 제 13 항 또는 14 항에 있어서, 장벽층이 NH3 을 사용하여 재활성화됨을 특징으로 하는 장벽층 형성방법.
- 제 13 항 또는 14 항에 있어서, 작업편이 반도체 웨이퍼임을 특징으로 하는 장벽층 형성방법.
- 제 17 항에 있어서, 전도층을 장벽층상에 증착하기에 앞서 350℃ 미만의 온도로 예열시킴으로써 작업편이 탈기됨을 특징으로 하는 장벽층 형성방법.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9624343.1A GB9624343D0 (en) | 1996-11-22 | 1996-11-22 | Method and apparatus for treating a semiconductor wafer |
GB9624343.1 | 1996-11-22 | ||
GB9702410.3 | 1997-02-06 | ||
GB9710356.8 | 1997-05-21 | ||
GB9715282.1 | 1997-07-22 | ||
GB9715282A GB9715282D0 (en) | 1997-07-22 | 1997-07-22 | Methods of treating a workpiece |
Publications (2)
Publication Number | Publication Date |
---|---|
KR19980042602A KR19980042602A (ko) | 1998-08-17 |
KR100510917B1 true KR100510917B1 (ko) | 2005-11-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019970061322A KR100510917B1 (ko) | 1996-11-22 | 1997-11-20 | 장벽층형성방법 |
Country Status (1)
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KR (1) | KR100510917B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100451493B1 (ko) * | 1998-09-02 | 2004-12-04 | 주식회사 하이닉스반도체 | 반도체소자의금속배선형성방법 |
KR20220167017A (ko) * | 2021-06-11 | 2022-12-20 | 주성엔지니어링(주) | 배리어층의 형성 방법 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0620994A (ja) * | 1992-02-28 | 1994-01-28 | Sony Corp | 配線形成方法 |
JPH0729853A (ja) * | 1993-06-25 | 1995-01-31 | Nec Corp | 半導体装置の製造方法 |
EP0738002A2 (en) * | 1995-03-20 | 1996-10-16 | Texas Instruments Incorporated | Stabilization of sheet resistance of electrical conductors |
US5567483A (en) * | 1995-06-05 | 1996-10-22 | Sony Corporation | Process for plasma enhanced anneal of titanium nitride |
KR960035888A (ko) * | 1995-03-29 | 1996-10-28 | 문정환 | 치밀한 티타늄 질화막 형성방법 및 이를 이용한 반도체 소자의 제조방법 |
KR970052451A (ko) * | 1995-12-29 | 1997-07-29 | 김광호 | 비아 특성 향상을 위한 배리어 층 형성 방법 |
KR0161889B1 (ko) * | 1995-08-02 | 1999-02-01 | 문정환 | 반도체장치의 배선 형성방법 |
KR0174709B1 (ko) * | 1996-01-25 | 1999-04-01 | 김광호 | 반도체 장치의 금속배선 형성 방법 |
-
1997
- 1997-11-20 KR KR1019970061322A patent/KR100510917B1/ko not_active IP Right Cessation
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0620994A (ja) * | 1992-02-28 | 1994-01-28 | Sony Corp | 配線形成方法 |
JPH0729853A (ja) * | 1993-06-25 | 1995-01-31 | Nec Corp | 半導体装置の製造方法 |
EP0738002A2 (en) * | 1995-03-20 | 1996-10-16 | Texas Instruments Incorporated | Stabilization of sheet resistance of electrical conductors |
KR960035888A (ko) * | 1995-03-29 | 1996-10-28 | 문정환 | 치밀한 티타늄 질화막 형성방법 및 이를 이용한 반도체 소자의 제조방법 |
KR0161880B1 (ko) * | 1995-03-29 | 1999-02-01 | 문정환 | 치밀한 티타늄 질화막 형성방법 및 이를 이용한 반도체 소자의 제조방법 |
US5567483A (en) * | 1995-06-05 | 1996-10-22 | Sony Corporation | Process for plasma enhanced anneal of titanium nitride |
KR0161889B1 (ko) * | 1995-08-02 | 1999-02-01 | 문정환 | 반도체장치의 배선 형성방법 |
KR970052451A (ko) * | 1995-12-29 | 1997-07-29 | 김광호 | 비아 특성 향상을 위한 배리어 층 형성 방법 |
KR0174709B1 (ko) * | 1996-01-25 | 1999-04-01 | 김광호 | 반도체 장치의 금속배선 형성 방법 |
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Publication number | Publication date |
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KR19980042602A (ko) | 1998-08-17 |
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