KR101170261B1 - 집적 회로 및 그 제조 방법과, 전하 저장을 위해 구성된 디바이스 - Google Patents
집적 회로 및 그 제조 방법과, 전하 저장을 위해 구성된 디바이스 Download PDFInfo
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- KR101170261B1 KR101170261B1 KR1020107021370A KR20107021370A KR101170261B1 KR 101170261 B1 KR101170261 B1 KR 101170261B1 KR 1020107021370 A KR1020107021370 A KR 1020107021370A KR 20107021370 A KR20107021370 A KR 20107021370A KR 101170261 B1 KR101170261 B1 KR 101170261B1
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- layer
- conductive layer
- dielectric layer
- integrated circuit
- amorphous high
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- 238000000034 method Methods 0.000 claims abstract description 49
- 239000010410 layer Substances 0.000 claims description 184
- 239000000758 substrate Substances 0.000 claims description 36
- 238000002955 isolation Methods 0.000 claims description 25
- 239000002243 precursor Substances 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000000151 deposition Methods 0.000 claims description 13
- 230000008021 deposition Effects 0.000 claims description 9
- 239000002356 single layer Substances 0.000 claims description 8
- 239000006227 byproduct Substances 0.000 claims description 7
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000008569 process Effects 0.000 description 22
- 239000000463 material Substances 0.000 description 18
- 238000000231 atomic layer deposition Methods 0.000 description 12
- 238000005240 physical vapour deposition Methods 0.000 description 10
- 239000003990 capacitor Substances 0.000 description 7
- 238000005229 chemical vapour deposition Methods 0.000 description 6
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- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 4
- 229910000449 hafnium oxide Inorganic materials 0.000 description 4
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
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- 239000001301 oxygen Substances 0.000 description 3
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 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
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
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- 239000000376 reactant Substances 0.000 description 2
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- 235000012239 silicon dioxide Nutrition 0.000 description 2
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- 229910052721 tungsten Inorganic materials 0.000 description 2
- -1 zirconium amide Chemical class 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910000673 Indium arsenide Inorganic materials 0.000 description 1
- GPXJNWSHGFTCBW-UHFFFAOYSA-N Indium phosphide Chemical compound [In]#P GPXJNWSHGFTCBW-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 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
- 229910007926 ZrCl Inorganic materials 0.000 description 1
- XWCMFHPRATWWFO-UHFFFAOYSA-N [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] Chemical compound [O-2].[Ta+5].[Sc+3].[O-2].[O-2].[O-2] XWCMFHPRATWWFO-UHFFFAOYSA-N 0.000 description 1
- ILCYGSITMBHYNK-UHFFFAOYSA-N [Si]=O.[Hf] Chemical compound [Si]=O.[Hf] ILCYGSITMBHYNK-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- VKJLWXGJGDEGSO-UHFFFAOYSA-N barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Ba+2] VKJLWXGJGDEGSO-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
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- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- VTGARNNDLOTBET-UHFFFAOYSA-N gallium antimonide Chemical compound [Sb]#[Ga] VTGARNNDLOTBET-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- PDPJQWYGJJBYLF-UHFFFAOYSA-J hafnium tetrachloride Chemical compound Cl[Hf](Cl)(Cl)Cl PDPJQWYGJJBYLF-UHFFFAOYSA-J 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- WPYVAWXEWQSOGY-UHFFFAOYSA-N indium antimonide Chemical compound [Sb]#[In] WPYVAWXEWQSOGY-UHFFFAOYSA-N 0.000 description 1
- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 229910001510 metal chloride Inorganic materials 0.000 description 1
- 239000012702 metal oxide precursor Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- KJXBRHIPHIVJCS-UHFFFAOYSA-N oxo(oxoalumanyloxy)lanthanum Chemical compound O=[Al]O[La]=O KJXBRHIPHIVJCS-UHFFFAOYSA-N 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- 239000000047 product Substances 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 description 1
- CZXRMHUWVGPWRM-UHFFFAOYSA-N strontium;barium(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[Ti+4].[Sr+2].[Ba+2] CZXRMHUWVGPWRM-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- OCGWQDWYSQAFTO-UHFFFAOYSA-N tellanylidenelead Chemical compound [Pb]=[Te] OCGWQDWYSQAFTO-UHFFFAOYSA-N 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- DUNKXUFBGCUVQW-UHFFFAOYSA-J zirconium tetrachloride Chemical compound Cl[Zr](Cl)(Cl)Cl DUNKXUFBGCUVQW-UHFFFAOYSA-J 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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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
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- 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
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- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
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- 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
- H01L21/0228—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 deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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- 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
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- 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
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- 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
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Abstract
Description
도 2는 전하 저장 디바이스를 생성하기 위해 2개의 도전층 사이에 형성된 상안정 비정질 하이-k 유전체층을 갖는 기판을 도시한 도면.
도 3은 리세스에 형성된 제 1 도전층의 평면 레이아웃도.
도 4는 도 3의 디바이스를 A-A 라인을 따라 절취하여 도시한 도 3의 단면도.
도 5는 제 1 도전층 상에 상안정 비정질 하이-k 유전체층을 형성한 후 도 3의 디바이스의 일실시예를 도시한 도면.
도 6은 도 5의 디바이스를 A-A 라인을 따라 절취하여 도시한 도 5의 단면도.
도 7은 다른 전하 저장 디바이스를 생성하기 위해 상안정 비정질 하이-k 유전체층 상에 제 2 도전체층을 형성한 후의 도 5의 디바이스의 일실시예를 도시한 도면.
도 8은 도 7의 전하 저장 디바이스를 A-A 라인을 따라 절취하여 도시한 도 7의 단면도.
도 9는 집적 회로에 형성된 전하 저장 디바이스를 구비하는 집적 회로의 일실시예를 도시한 도면.
도 10은 전하 저장 디바이스의 다른 실시예를 도시한 도면.
도 11은 어닐(anneal) 처리 전후의 전하 저장 디바이스의 누설전류대 등가 산화물 두께를 나타내는 도면.
Claims (20)
- 집적 회로 제조 방법에 있어서,
도전층을 갖는 기판을 제공하는 단계를 포함하되,
상기 기판은 제 1 프리커서(precursor)에 노출되어 상기 도전층 상에 단층(monolayer)을 형성하고,
상기 단층은 실질적으로 230℃ 내지 270℃의 증착 온도에서 제 2 프리커서에 노출되어, 상기 제 1 프리커서 및 상기 제 2 프리커서 중 적어도 하나로부터의 프리커서 부산물(precursor by-product)을 포함하는 상 안정 비정질 하이-k(phase-stable amorphous high-k) 유전체층을 상기 도전층에 직접 인접하도록 형성하는
집적 회로 제조 방법.
- 제 1 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층 상에 제 2 도전층을 형성하는 단계를 더 포함하는
집적 회로 제조 방법.
- 제 2 항에 있어서,
상기 제 2 도전층의 두께는 10 옹스트롬보다 더 큰
집적 회로 제조 방법.
- 제 1 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층의 상기 프리커서 부산물은 Cl, N 및 C로 이루어진 그룹으로부터 선택되는
집적 회로 제조 방법.
- 제 1 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층의 두께는 40 내지 60 옹스트롬(Å)인
집적 회로 제조 방법.
- 제 1 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층은 완전히 비정질(fully amorphous)인
집적 회로 제조 방법.
- 제 4 항에 있어서,
상기 기판과 상기 도전층 사이에 격리층을 형성하는 단계를 더 포함하는
집적 회로 제조 방법.
- 집적 회로에 있어서,
격리 영역(isolation region)에 직접 인접하는 제 1 도전층과,
상기 제 1 도전층에 직접 인접하고, 프리커서 부산물을 포함하는 상 안정 비정질 하이-k 유전체층과,
상기 상 안정 비정질 하이-k 유전체층에 직접 인접하게 형성된 제 2 도전층을 포함하는
집적 회로.
- 제 8 항에 있어서,
상기 제 2 도전층의 두께는 10 옹스트롬보다 큰
집적 회로.
- 제 8 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층의 프리커서 부산물은 Cl, N 및 C로 이루어진 그룹으로부터 선택되는
집적 회로.
- 제 8 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층의 두께는 40 내지 60 옹스트롬(Å)인
집적 회로.
- 제 8 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층은 완전히 비정질(fully amorphous)인
집적 회로.
- 제 8 항에 있어서,
상기 제 1 도전층은 격리층 상에 위치하는
집적 회로. - 전하 저장을 위해 구성된 디바이스에 있어서,
리세스의 표면에 직접 인접하는 제 1 도전층과,
상기 제 1 도전층에 직접 인접하고, 프리커서 부산물을 포함하며, 캐비티를 형성하는 상 안정 비정질 하이-k 유전체층과,
상기 캐비티 내에 형성된 제 2 도전층을 포함하는
전하 저장을 위해 구성된 디바이스.
- 제 14 항에 있어서,
상기 제 2 도전층의 두께는 10 옹스트롬보다 큰
전하 저장을 위해 구성된 디바이스.
- 제 14 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층의 상기 프리커서 부산물은 Cl, N 및 C로 이루어진 그룹으로부터 선택되는
전하 저장을 위해 구성된 디바이스.
- 제 14 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층의 두께는 40 내지 60 옹스트롬(Å)인
전하 저장을 위해 구성된 디바이스.
- 제 14 항에 있어서,
상기 상 안정 비정질 하이-k 유전체층은 완전히 비정질(fully amorphous)인
전하 저장을 위해 구성된 디바이스.
- 제 14 항에 있어서,
상기 제 1 도전층은 격리층에 직접 인접하여 형성되는
전하 저장을 위해 구성된 디바이스.
- 제 14 항에 있어서,
상기 제 2 도전층에 직접 인접하는 도전성 코어를 더 포함하는
전하 저장을 위해 구성된 디바이스.
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US12/215,322 US7999351B2 (en) | 2008-06-25 | 2008-06-25 | Phase memorization for low leakage dielectric films |
PCT/US2009/046897 WO2009158193A2 (en) | 2008-06-25 | 2009-06-10 | Phase memorization for low leakage dielectric films |
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US11769692B2 (en) | 2018-10-31 | 2023-09-26 | Taiwan Semiconductor Manufacturing Co., Ltd. | High breakdown voltage inter-metal dielectric layer |
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US7112485B2 (en) | 2002-08-28 | 2006-09-26 | Micron Technology, Inc. | Systems and methods for forming zirconium and/or hafnium-containing layers |
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US20060060930A1 (en) * | 2004-09-17 | 2006-03-23 | Metz Matthew V | Atomic layer deposition of high dielectric constant gate dielectrics |
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