KR100335775B1 - 반도체 소자의 캐패시터 제조 방법 - Google Patents
반도체 소자의 캐패시터 제조 방법 Download PDFInfo
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- KR100335775B1 KR100335775B1 KR1019990024220A KR19990024220A KR100335775B1 KR 100335775 B1 KR100335775 B1 KR 100335775B1 KR 1019990024220 A KR1019990024220 A KR 1019990024220A KR 19990024220 A KR19990024220 A KR 19990024220A KR 100335775 B1 KR100335775 B1 KR 100335775B1
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- 239000003990 capacitor Substances 0.000 title claims abstract description 45
- 239000004065 semiconductor Substances 0.000 title claims abstract description 26
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 63
- 229910010282 TiON Inorganic materials 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims description 26
- 230000008569 process Effects 0.000 claims description 25
- 229910052760 oxygen Inorganic materials 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 238000005121 nitriding Methods 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 238000011065 in-situ storage Methods 0.000 claims description 8
- 239000012495 reaction gas Substances 0.000 claims description 8
- 238000011066 ex-situ storage Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000004518 low pressure chemical vapour deposition Methods 0.000 claims description 5
- 150000004767 nitrides Chemical class 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 2
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000009832 plasma treatment Methods 0.000 claims description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 2
- 229910002651 NO3 Inorganic materials 0.000 claims 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 1
- 238000009736 wetting Methods 0.000 claims 1
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000010408 film Substances 0.000 description 56
- 239000010410 layer Substances 0.000 description 14
- 239000010936 titanium Substances 0.000 description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 239000010409 thin film Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 5
- 229920005591 polysilicon Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 229910052715 tantalum Inorganic materials 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000007847 structural defect Effects 0.000 description 2
- 238000006557 surface reaction Methods 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 150000001723 carbon free-radicals Chemical class 0.000 description 1
- -1 carbon ions Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010574 gas phase reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/022—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates the layer being a laminate, i.e. composed of sublayers, e.g. stacks of alternating high-k metal oxides
-
- 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
- H01L21/314—Inorganic layers
- H01L21/3143—Inorganic layers composed of alternated layers or of mixtures of nitrides and oxides or of oxinitrides, e.g. formation of oxinitride by oxidation of nitride layers
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/03—Making the capacitor or connections thereto
- H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/31—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor
- H10B12/318—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor the storage electrode having multiple segments
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
- H10D1/711—Electrodes having non-planar surfaces, e.g. formed by texturisation
-
- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
- H10D1/711—Electrodes having non-planar surfaces, e.g. formed by texturisation
- H10D1/716—Electrodes having non-planar surfaces, e.g. formed by texturisation having vertical extensions
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Semiconductor Memories (AREA)
- Formation Of Insulating Films (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
Claims (17)
- 캐패시터를 형성하기 위한 하부구조가 형성된 반도체 기판이 제공되는 단계와,상기 반도체 기판 상에 하부전극을 형성하는 단계와,상기 하부전극을 포함한 전체구조 상부에 Ti(OC3H7)4의 가스와 NH3가스를 반응시켜 TiON 유전체막을 형성하는 단계와,상부전극을 형성하는 단계를 포함하여 이루어지는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 하부전극 형성 후 인-시투로 200 내지 600℃의 온도조건 및 NH3또는 N2/H2또는 N2O 분위기에서 30초 내지 10분동안 플라즈마 처리하여 상기 하부전극 표면을 질화처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 하부전극 형성 후 RTP를 이용하여 600 내지 950℃의 온도조건 및 NH3가스 분위기에서 1분 내지 10분 동안 어닐링하여 상기 하부전극 표면을 질화처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 하부전극 형성 후 HF 화합물을 이용하여 상기 하부전극 표면의 자연산화막을 제거하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 4 항에 있어서,상기 HF 화합물을 이용한 자연 산화막 제거 공정 전 또는 후에 NH4OH 또는 H2SO4용액을 이용하여 계면처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 하부전극 형성 후 하부전극 표면의 자연산화막을 제거하고 세정공정을 진행한 다음 5 내지 25Å의 두께로 실리콘 질화막을 형성하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 하부전극 형성 후 RTP를 이용하여 300 내지 950℃의 온도조건 및 NH3또는 N2/H2분위기에서 질화처리하거나 NO2또는 O2분위기에서 열처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막은 300 내지 600℃의 LPCVD 챔버에서 O2를 반응가스로 하고 Ti(OC3H7)4가스와 NH3가스를 반응시켜 형성되는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 8 항에 있어서,상기 Ti(OC3H7)4가스는 Ti(OC3H7)4물질을 유량 조절기를 사용하여 200 내지 300℃에서 정온으로 유지되고 있는 증발기로 공급하여 발생시키는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 8 항에 있어서,상기 NH3가스의 유량은 10 내지 1000sccm으로 하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막 형성 후 RTP를 이용하여 650 내지 950℃의 온도조건에서 30초 내지 10분 동안 어닐링하여 TiON 유전체막을 결정화하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막 형성 후 퍼니스를 이용하여 650 내지 950℃의 온도조건 및 N20 또는 O2또는 N2분위기에서 1분 내지 30분 동안 어닐링하여 TiON 유전체막을 결정화하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막 형성 후 200 내지 600℃의 온도조건 및 NH3또는 N2/H2또는 N20 분위기에서 어닐링하여 5 내지 20Å 두께의 질화막을 형성하거나 N2O 또는 O2분위기에서 건식 산화 또는 라이트 산화공정을 실시하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막 형성 후 인-시투 또는 익스-시투로 플라즈마를 이용하여300 내지 950℃의 온도조건 및 NH3또는 N2또는 N2/H2분위기에서 어닐링하여 상기 TiON 유전체막을 결정화시킴과 동시에 질화처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막 형성 후 인-시투 또는 익스-시투로 RTP 또는 퍼니스를 이용하여 600 내지 950℃의 온도조건 및 NH3또는 N2또는 N2/H2또는 N2O 분위기에서 어닐링하여 상기 TiON 유전체막을 결정화시킴과 동시에 질화처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막 형성 후 인-시투 또는 익스-시투로 RTP 또는 퍼니스를 이용하여 600 내지 950℃의 온도조건 및 N2O또는 O2분위기에서 열처리하거나 O2/H2분위기에서 O2/H2의 유량비를 3 이하로 정량화하여 라이트 습식산화하여 상기 TiON 유전체막을 결정화시킴과 동시에 질화처리하는 단계를 더 포함하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
- 제 1 항에 있어서,상기 TiON 유전체막은 O2가스를 반응가스로 이용하여 형성하는 것을 특징으로 하는 반도체 소자의 캐패시터 제조 방법.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990024220A KR100335775B1 (ko) | 1999-06-25 | 1999-06-25 | 반도체 소자의 캐패시터 제조 방법 |
JP2000190103A JP4486735B2 (ja) | 1999-06-25 | 2000-06-23 | 半導体メモリ素子のキャパシタの製造方法 |
TW089112254A TW533583B (en) | 1999-06-25 | 2000-06-23 | Capacitor for semiconductor memory device and method of manufacturing the same |
US09/603,440 US6525364B1 (en) | 1999-06-25 | 2000-06-23 | Capacitor for semiconductor memory device and method of manufacturing the same |
US10/335,101 US6787414B2 (en) | 1999-06-25 | 2003-01-02 | Capacitor for semiconductor memory device and method of manufacturing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990024220A KR100335775B1 (ko) | 1999-06-25 | 1999-06-25 | 반도체 소자의 캐패시터 제조 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20010003785A KR20010003785A (ko) | 2001-01-15 |
KR100335775B1 true KR100335775B1 (ko) | 2002-05-09 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019990024220A Expired - Fee Related KR100335775B1 (ko) | 1999-06-25 | 1999-06-25 | 반도체 소자의 캐패시터 제조 방법 |
Country Status (4)
Country | Link |
---|---|
US (2) | US6525364B1 (ko) |
JP (1) | JP4486735B2 (ko) |
KR (1) | KR100335775B1 (ko) |
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KR100335775B1 (ko) * | 1999-06-25 | 2002-05-09 | 박종섭 | 반도체 소자의 캐패시터 제조 방법 |
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KR100562493B1 (ko) * | 2002-12-10 | 2006-03-21 | 삼성전자주식회사 | 커패시터 유전막을 갖는 반도체 소자 및 그 제조방법 |
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KR100655074B1 (ko) * | 2004-11-11 | 2006-12-11 | 삼성전자주식회사 | 스토리지 커패시터 및 그의 제조방법 |
US7256415B2 (en) * | 2005-05-31 | 2007-08-14 | International Business Machines Corporation | Memory device and method of manufacturing the device by simultaneously conditioning transition metal oxide layers in a plurality of memory cells |
JP2007067366A (ja) | 2005-08-05 | 2007-03-15 | Elpida Memory Inc | 半導体記憶装置の製造方法 |
US20080272421A1 (en) * | 2007-05-02 | 2008-11-06 | Micron Technology, Inc. | Methods, constructions, and devices including tantalum oxide layers |
US8012532B2 (en) | 2007-12-18 | 2011-09-06 | Micron Technology, Inc. | Methods of making crystalline tantalum pentoxide |
US8208241B2 (en) * | 2008-06-04 | 2012-06-26 | Micron Technology, Inc. | Crystallographically orientated tantalum pentoxide and methods of making same |
US10361213B2 (en) * | 2016-06-28 | 2019-07-23 | Sandisk Technologies Llc | Three dimensional memory device containing multilayer wordline barrier films and method of making thereof |
US10355139B2 (en) | 2016-06-28 | 2019-07-16 | Sandisk Technologies Llc | Three-dimensional memory device with amorphous barrier layer and method of making thereof |
KR20220034574A (ko) * | 2020-09-11 | 2022-03-18 | 삼성전자주식회사 | 반도체 소자 |
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1999
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2000
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- 2000-06-23 US US09/603,440 patent/US6525364B1/en not_active Expired - Lifetime
- 2000-06-23 TW TW089112254A patent/TW533583B/zh not_active IP Right Cessation
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US6525364B1 (en) | 2003-02-25 |
US20030132474A1 (en) | 2003-07-17 |
JP2001036031A (ja) | 2001-02-09 |
KR20010003785A (ko) | 2001-01-15 |
JP4486735B2 (ja) | 2010-06-23 |
US6787414B2 (en) | 2004-09-07 |
TW533583B (en) | 2003-05-21 |
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