KR101044642B1 - 반도체 장치 및 그 제조 방법 - Google Patents
반도체 장치 및 그 제조 방법 Download PDFInfo
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- KR101044642B1 KR101044642B1 KR1020077027207A KR20077027207A KR101044642B1 KR 101044642 B1 KR101044642 B1 KR 101044642B1 KR 1020077027207 A KR1020077027207 A KR 1020077027207A KR 20077027207 A KR20077027207 A KR 20077027207A KR 101044642 B1 KR101044642 B1 KR 101044642B1
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- film
- oxide film
- barrier
- silicon oxide
- barrier film
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims description 120
- 238000004519 manufacturing process Methods 0.000 title claims description 47
- 230000004888 barrier function Effects 0.000 claims abstract description 252
- 239000003990 capacitor Substances 0.000 claims abstract description 77
- 239000000758 substrate Substances 0.000 claims abstract description 28
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000009792 diffusion process Methods 0.000 claims abstract description 18
- 239000001257 hydrogen Substances 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 5
- 230000002265 prevention Effects 0.000 claims abstract description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 95
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 73
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 73
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 9
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims description 8
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 8
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 8
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 8
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 187
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 170
- 238000010438 heat treatment Methods 0.000 description 59
- 239000007789 gas Substances 0.000 description 52
- 239000012298 atmosphere Substances 0.000 description 45
- 239000010410 layer Substances 0.000 description 45
- 238000004544 sputter deposition Methods 0.000 description 44
- 239000004020 conductor Substances 0.000 description 41
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 38
- 239000010936 titanium Substances 0.000 description 36
- 230000015572 biosynthetic process Effects 0.000 description 33
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 32
- 239000011229 interlayer Substances 0.000 description 32
- 229910052751 metal Inorganic materials 0.000 description 32
- 239000002184 metal Substances 0.000 description 32
- 239000001301 oxygen Substances 0.000 description 32
- 229910052760 oxygen Inorganic materials 0.000 description 32
- 238000005229 chemical vapour deposition Methods 0.000 description 31
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 20
- 229910052719 titanium Inorganic materials 0.000 description 20
- 238000005530 etching Methods 0.000 description 19
- 230000000694 effects Effects 0.000 description 17
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 16
- 229910052697 platinum Inorganic materials 0.000 description 16
- 229910052721 tungsten Inorganic materials 0.000 description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 14
- 229910052710 silicon Inorganic materials 0.000 description 14
- 239000010703 silicon Substances 0.000 description 14
- 229910052741 iridium Inorganic materials 0.000 description 13
- 238000000206 photolithography Methods 0.000 description 13
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 13
- 239000010937 tungsten Substances 0.000 description 13
- 238000000151 deposition Methods 0.000 description 12
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical compound O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 12
- 229910000457 iridium oxide Inorganic materials 0.000 description 12
- 229910052726 zirconium Inorganic materials 0.000 description 12
- 230000008021 deposition Effects 0.000 description 11
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 11
- 229920002120 photoresistant polymer Polymers 0.000 description 11
- 229910052745 lead Inorganic materials 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 9
- 238000000137 annealing Methods 0.000 description 9
- 229910052581 Si3N4 Inorganic materials 0.000 description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 8
- 229910052786 argon Inorganic materials 0.000 description 8
- 239000011575 calcium Substances 0.000 description 8
- 238000001312 dry etching Methods 0.000 description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 8
- 229910052712 strontium Inorganic materials 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 229910016570 AlCu Inorganic materials 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 6
- 229910003446 platinum oxide Inorganic materials 0.000 description 6
- 230000010287 polarization Effects 0.000 description 6
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000000059 patterning Methods 0.000 description 5
- 238000004151 rapid thermal annealing Methods 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- 239000010948 rhodium Substances 0.000 description 4
- 229910021332 silicide Inorganic materials 0.000 description 4
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 4
- 238000004528 spin coating Methods 0.000 description 4
- 230000002269 spontaneous effect Effects 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910010037 TiAlN Inorganic materials 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 229910052707 ruthenium Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 229910020684 PbZr Inorganic materials 0.000 description 2
- OOMSNAKIPQWBDX-UHFFFAOYSA-N [Si]=O.[P] Chemical compound [Si]=O.[P] OOMSNAKIPQWBDX-UHFFFAOYSA-N 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 2
- 238000000224 chemical solution deposition Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 239000011572 manganese Substances 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 229910052762 osmium Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052702 rhenium Inorganic materials 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 229910004121 SrRuO Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 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
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910021334 nickel silicide Inorganic materials 0.000 description 1
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229960001730 nitrous oxide Drugs 0.000 description 1
- 235000013842 nitrous oxide Nutrition 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- WQJQOUPTWCFRMM-UHFFFAOYSA-N tungsten disilicide Chemical compound [Si]#[W]#[Si] WQJQOUPTWCFRMM-UHFFFAOYSA-N 0.000 description 1
- 229910021342 tungsten silicide Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B53/00—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory capacitors
-
- 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
- H01L21/7687—Thin films associated with contacts of capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
- H01L28/55—Capacitors with a dielectric comprising a perovskite structure material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/1901—Structure
- H01L2924/1904—Component type
- H01L2924/19041—Component type being a capacitor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (19)
- 반도체 기판의 위쪽에 형성된 강유전체 캐패시터와,상기 강유전체 캐패시터의 상부 전극의 상면으로부터 하부 전극의 상면까지의 부분을 직접 덮는 제1 배리어(barrier)막과,상기 제1 배리어막 및 상기 하부 전극의 측면을 덮는 제2 배리어막을 갖는 반도체 장치로서,상기 제2 배리어막은 적층체로서, 하층이 알루미늄 산화막, 알루미늄 질화막 및 알루미늄 산질화막으로 이루어지는 군에서 선택된 1종의 막이며, 상층이 티탄 산화막, 탄탈 산화막, 지르코늄 산화막 및 탄탈 질화막에서 선택된 1종의 막인 것을 특징으로 하는 반도체 장치.
- 반도체 기판의 위쪽에 형성된 강유전체 캐패시터와,상기 강유전체 캐패시터의 상부 전극의 상면으로부터 하부 전극의 상면까지의 부분을 직접 덮는 제1 배리어막과,상기 제1 배리어막 및 상기 하부 전극의 측면을 덮는 제2 배리어막과,상기 강유전체 캐패시터의 위쪽에 형성된 제3 배리어막을 갖는 반도체 장치로서,상기 제2 및 제3 배리어막은 적층체로서, 하층이 알루미늄 산화막, 알루미늄 질화막 및 알루미늄 산질화막으로 이루어지는 군에서 선택된 1종의 막이며, 상층이 티탄 산화막, 탄탈 산화막, 지르코늄 산화막 및 탄탈 질화막에서 선택된 1종의 막인 것을 특징으로 하는 반도체 장치.
- 반도체 기판의 위쪽에 형성된 강유전체 캐패시터와,상기 강유전체 캐패시터의 상부 전극의 상면으로부터 하부 전극의 상면까지의 부분을 직접 덮는 제1 배리어막과,상기 제1 배리어막 및 상기 하부 전극의 측면을 덮는 제2 배리어막과,상기 강유전체 캐패시터에 접속된 배선과,상기 배선보다 위쪽에 형성된 제4 배리어막을 갖는 반도체 장치로서,상기 제2 및 제4 배리어막은 적층체로서, 하층이 알루미늄 산화막, 알루미늄 질화막 및 알루미늄 산질화막으로 이루어지는 군에서 선택된 1종의 막이며, 상층이 티탄 산화막, 탄탈 산화막, 지르코늄 산화막 및 탄탈 질화막에서 선택된 1종의 막인 것을 특징으로 하는 반도체 장치.
- 제3항에 있어서,상기 제4 배리어막은 상기 배선을 직접 덮는 상기 적층체인 것을 특징으로 하는 반도체 장치.
- 제3항에 있어서,상기 배선은 복수의 배선층에 걸쳐 형성되고,상기 배선층간에는 하나 이상의 배리어막이 형성되고,상기 배선층간의 하나 이상의 배리어막 중 적어도 하나는 상기 적층체인 것을 특징으로 하는 반도체 장치.
- 반도체 기판의 위쪽에 강유전체 캐패시터를 형성하는 공정과,상기 강유전체 캐패시터의 상부 전극의 상면으로부터 하부 전극의 상면까지의 부분을 직접 덮는 제1 배리어막을 형성하는 공정과,상기 제1 배리어막 및 상기 하부 전극의 측면을 덮는 제2 배리어막을 형성하는 공정과,상기 강유전체 캐패시터에 접속되는 배선을 형성하는 공정과,상기 배선보다 위쪽에 제3 배리어막을 형성하는 공정을 갖고,상기 제2 배리어막을 형성하는 공정 및 상기 제3 배리어막을 형성하는 공정의 적어도 한쪽은,성분이 상이하고, 수소 또는 물의 확산을 방지하는, 적어도 2종류의 확산 방지막을 구비한 적층체를 형성하는 공정을 갖고,상기 적층체를 형성하는 공정은,알루미늄 산화막, 알루미늄 질화막 및 알루미늄 산질화막으로 이루어지는 군에서 선택된 1종의 막을 형성하는 공정과,이 막보다 위쪽에 티탄 산화막, 탄탈 산화막, 지르코늄 산화막 및 탄탈 질화막으로 이루어지는 군에서 선택된 1종의 막을 형성하는 공정을 갖는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 삭제
- 제6항에 있어서,상기 제3 배리어막으로서, 상기 배선을 직접 덮는 상기 적층체를 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제6항에 있어서,상기 제2 배리어막으로서, 상기 적층체를 형성하고,상기 제3 배리어막으로서, 상기 배선을 직접 덮는 상기 적층체를 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제6항에 있어서,상기 배선을 복수의 배선층에 걸쳐 형성하고,상기 배선층간에는 하나 이상의 배리어막을 형성하고,상기 배선층간의 하나 이상의 배리어막 중 적어도 하나로서, 상기 적층체를 형성하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 삭제
- 삭제
- 삭제
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