KR100936685B1 - 질화규소막의 제조 방법, 반도체 장치의 제조 방법 및반도체 장치 - Google Patents
질화규소막의 제조 방법, 반도체 장치의 제조 방법 및반도체 장치 Download PDFInfo
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- KR100936685B1 KR100936685B1 KR1020040108818A KR20040108818A KR100936685B1 KR 100936685 B1 KR100936685 B1 KR 100936685B1 KR 1020040108818 A KR1020040108818 A KR 1020040108818A KR 20040108818 A KR20040108818 A KR 20040108818A KR 100936685 B1 KR100936685 B1 KR 100936685B1
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- silicon nitride
- nitride film
- insulating film
- film
- interlayer insulating
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- 229910052581 Si3N4 Inorganic materials 0.000 title claims abstract description 190
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 239000004065 semiconductor Substances 0.000 title claims abstract description 90
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 82
- 238000000034 method Methods 0.000 claims abstract description 79
- 239000000460 chlorine Substances 0.000 claims abstract description 75
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 59
- 239000000758 substrate Substances 0.000 claims abstract description 48
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 47
- 239000010703 silicon Substances 0.000 claims abstract description 47
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 19
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims description 95
- 239000010410 layer Substances 0.000 claims description 58
- 238000005530 etching Methods 0.000 claims description 53
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 18
- 230000003213 activating effect Effects 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 4
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- 230000008569 process Effects 0.000 abstract description 20
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- 238000004518 low pressure chemical vapour deposition Methods 0.000 abstract description 12
- 239000010408 film Substances 0.000 description 290
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 38
- 230000000052 comparative effect Effects 0.000 description 29
- 239000012535 impurity Substances 0.000 description 20
- 150000002431 hydrogen Chemical class 0.000 description 15
- 238000009792 diffusion process Methods 0.000 description 12
- 150000004767 nitrides Chemical class 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
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- 238000001020 plasma etching Methods 0.000 description 7
- 239000010409 thin film Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- -1 SiH 2 Cl 2 Chemical compound 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229910021332 silicide Inorganic materials 0.000 description 5
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 description 3
- 229910021334 nickel silicide Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
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- 150000001875 compounds Chemical class 0.000 description 2
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- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 150000002829 nitrogen Chemical class 0.000 description 2
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910021426 porous silicon Inorganic materials 0.000 description 2
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- YZCKVEUIGOORGS-UHFFFAOYSA-N Hydrogen atom Chemical compound [H] YZCKVEUIGOORGS-UHFFFAOYSA-N 0.000 description 1
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- 239000004642 Polyimide Substances 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 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
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 1
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- 150000002500 ions Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000052 poly(p-xylylene) Polymers 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000000126 substance Substances 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
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- H01L21/02107—Forming insulating materials on a substrate
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- H01L21/02123—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 characterised by the material of the layer the material containing silicon
- H01L21/0217—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 characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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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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- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
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- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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Abstract
Description
Claims (20)
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- 질화규소막 위에 게이트 전극을 형성하여 이루어지는 반도체 장치의 제조 방법으로서,반도체층을 포함하는 기판의 표면에 규소와 염소를 포함하는 제1 가스를 공급하는 제1 공정;상기 기판의 표면에 질소를 포함하는 제2 가스를 활성화하여 공급하는 제2 공정;상기 기판의 표면에 수소를 포함하는 제3 가스를 공급하는 제3 공정;을 반복하여 제1 질화규소막을 형성하는 공정과,상기 제1 질화규소막 위에 게이트 전극을 형성하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 제11항에 있어서, 상기 제1 질화규소막을 형성하는 공정 전에, 상기 기판 위에 상기 제1 질화규소막보다도 높은 유전률을 갖는 절연막을 형성하는 공정을 더 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 기판 위에 질화규소막을 형성하여 이루어지는 반도체 장치의 제조 방법으로서,상기 기판은, 반도체층과, 상기 반도체층의 주요면 위에 선택적으로 설치된 게이트 절연막과, 상기 게이트 절연막 위에 설치된 게이트 전극을 포함하고,상기 기판의 표면에 규소와 염소를 포함하는 제1 가스를 공급하는 제1 공정;상기 기판의 표면에 질소를 포함하는 제2 가스를 활성화하여 공급하는 제2 공정;상기 기판의 표면에 수소를 포함하는 제3 가스를 공급하는 제3 공정;을 반복하여 제1 질화규소막을 형성하는 공정과,상기 반도체층의 상기 주요면에 대하여 대략 수직 방향으로 상기 제1 질화규소막을 에칭함으로써, 상기 반도체층 및 상기 게이트 전극 위의 상기 제1 질화규소막을 제거하고, 상기 게이트 절연막 및 게이트 전극의 측면에 상기 제1 질화규소막으로 이루어지는 측벽을 잔류시키는 공정을 포함하는 것을 특징으로 반도체 장치의 제조 방법.
- 기판 위에 질화규소막을 형성하여 이루어지는 반도체 장치의 제조 방법으로서,상기 기판은, 반도체층과, 상기 반도체층의 주요면 위에 선택적으로 설치된 게이트 절연막과, 상기 게이트 절연막 위에 설치된 게이트 전극을 포함하고,상기 기판의 표면에 규소와 염소를 포함하는 제1 가스를 공급하는 제1 공정;상기 기판의 표면에 질소를 포함하는 제2 가스를 활성화하여 공급하는 제2 공정;상기 기판의 표면에 수소를 포함하는 제3 가스를 공급하는 제3 공정;을 반복하여 제1 질화규소막을 형성하는 공정과,상기 제1 질화규소막을 형성하는 공정에서의 상기 제1 질화규소막의 퇴적 속도보다도 큰 퇴적 속도를 갖는 퇴적 방법에 의해 제2 질화규소막을 형성하는 공정과,상기 반도체층의 상기 주요면에 대하여 대략 수직 방향으로 상기 제2 및 제1 질화규소막을 에칭함으로써, 상기 반도체층 및 상기 게이트 전극 위의 상기 제2 및 제1 질화규소막을 제거하고, 상기 게이트 절연막 및 게이트 전극의 측면에 상기 제2 및 제1 질화규소막으로 이루어지는 측벽을 잔류시키는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 반도체층을 포함하는 기판 위에 질화규소막을 형성하여 이루어지는 반도체 장치의 제조 방법으로서,상기 기판의 표면에 규소와 염소를 포함하는 제1 가스를 공급하는 제1 공정;상기 기판의 표면에 질소를 포함하는 제2 가스를 활성화하여 공급하는 제2 공정;상기 기판의 표면에 수소를 포함하는 제3 가스를 공급하는 제3 공정;을 반복하여 제1 질화규소막을 형성하는 공정과,상기 제1 질화규소막 위에 층간 절연층을 형성하는 공정과,상기 층간 절연층 위에 개구를 갖는 층을 형성하는 공정과,상기 제1 질화규소막에 대한 에칭 속도보다도 상기 층간 절연층에 대한 에칭 속도 쪽이 큰 조건으로, 상기 개구를 통해 상기 층간 절연층을 에칭하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 반도체층을 포함하는 기판 위에 질화규소막을 형성하여 이루어지는 반도체 장치의 제조 방법으로서,상기 기판의 표면에 규소와 염소를 포함하는 제1 가스를 공급하는 제1 공정;상기 기판의 표면에 질소를 포함하는 제2 가스를 활성화하여 공급하는 제2 공정;상기 기판의 표면에 수소를 포함하는 제3 가스를 공급하는 제3 공정;을 반복하여 제1 질화규소막을 형성하는 공정과,상기 제1 질화규소막 위에, 상기 제1 질화규소막을 형성하는 공정에서의 상기 제1 질화규소막의 퇴적 속도보다도 큰 퇴적 속도를 갖는 퇴적 방법에 의해 제2 질화규소막을 형성하는 공정과,상기 제2 질화규소막 위에 규소와 염소를 포함하는 제1 가스를 공급하는 제4 공정;상기 제2 질화규소막 위에 질소를 포함하는 제2 가스를 활성화하여 공급하는 제5 공정;상기 제2 질화규소막 위에 수소를 포함하는 제3 가스를 공급하는 제6 공정;을 반복하여 제3 질화규소막을 형성하는 공정과,상기 제3 질화규소막 위에 층간 절연층을 형성하는 공정과,상기 층간 절연층 위에 개구를 갖는 층을 형성하는 공정과,상기 제3 질화규소막에 대한 에칭 속도보다도 상기 층간 절연층에 대한 에칭 속도 쪽이 큰 조건으로, 상기 개구를 통해 상기 층간 절연층을 에칭하는 공정을 포함하는 것을 특징으로 하는 반도체 장치의 제조 방법.
- 반도체층과,상기 반도체층 위에 설치된 게이트 절연막과,상기 게이트 절연막 위에 설치된 게이트 전극과,상기 게이트 전극 및 상기 게이트 절연막의 측면에 설치된 질화규소로 이루어지는 게이트 측벽으로서, 상기 게이트 전극 및 상기 게이트 절연막에 접한 부분에서의 염소의 함유율이 그 이외의 부분에 있어서의 염소의 함유율보다도 작은 게이트 측벽을 포함하는 것을 특징으로 하는 반도체 장치.
- 반도체층과,상기 반도체층 위에 설치된 게이트 절연막과,상기 게이트 절연막 위에 설치된 게이트 전극과,상기 게이트 전극 및 상기 게이트 절연막의 측면에 설치된 질화규소로 이루어지는 게이트 측벽으로서, 상기 게이트 전극 및 상기 게이트 절연막에 접한 부분의 불산에 대한 에칭 속도가 그 이외의 부분의 불산에 대한 에칭 속도보다도 작은 게이트 측벽을 포함하는 것을 특징으로 하는 반도체 장치.
- 반도체층과,상기 반도체층 위에 설치되며, 제1 질화규소막과, 상기 제1 질화규소막 위에 설치된 제2 질화규소막과, 상기 제2 질화규소막 위에 설치된 제3 질화규소막을 포함하고, 상기 제1 및 제3 질화규소막의 염소의 함유량은 상기 제2 질화규소막의 염소의 함유량보다도 작은 제1 층간 절연막과,상기 제1 층간 절연막 위에 설치되고, 질화규소보다도 작은 유전율을 갖는 제2 층간 절연막과,상기 제2 층간 절연막 및 상기 제1 층간 절연막을 관통하여 상기 반도체층에 이르는 전극을 포함하는 것을 특징으로 하는 반도체 장치.
- 반도체층과,상기 반도체층 위에 설치되며, 제1 질화규소막과, 상기 제1 질화규소막 위에 설치된 제2 질화규소막과, 상기 제2 질화규소막 위에 설치된 제3 질화규소막을 포함하고, 상기 제1 및 제3 질화규소막의 불산에 대한 에칭 속도는 상기 제2 질화규소막의 불산에 대한 에칭 속도보다도 작은 제1 층간 절연막과,상기 제1 층간 절연막 위에 설치되고, 질화규소보다도 작은 유전율을 갖는 제2 층간 절연막과,상기 제2 층간 절연막 및 상기 제1 층간 절연막을 관통하여 상기 반도체층에 이르는 전극을 포함하는 것을 특징으로 하는 반도체 장치.
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