KR20010063463A - 반도체 소자의 제조 방법 - Google Patents
반도체 소자의 제조 방법 Download PDFInfo
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- KR20010063463A KR20010063463A KR1019990060547A KR19990060547A KR20010063463A KR 20010063463 A KR20010063463 A KR 20010063463A KR 1019990060547 A KR1019990060547 A KR 1019990060547A KR 19990060547 A KR19990060547 A KR 19990060547A KR 20010063463 A KR20010063463 A KR 20010063463A
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- thin film
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 37
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000010409 thin film Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 10
- 239000010408 film Substances 0.000 claims description 24
- 238000005229 chemical vapour deposition Methods 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000000151 deposition Methods 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000002243 precursor Substances 0.000 claims description 5
- 238000005546 reactive sputtering Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 229920005591 polysilicon Polymers 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 238000005566 electron beam evaporation Methods 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- 239000003989 dielectric material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- QZIQJVCYUQZDIR-UHFFFAOYSA-N mechlorethamine hydrochloride Chemical compound Cl.ClCCN(C)CCCl QZIQJVCYUQZDIR-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/28158—Making the insulator
- H01L21/28167—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation
- H01L21/28185—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation with a treatment, e.g. annealing, after the formation of the gate insulator and before the formation of the definitive gate conductor
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/02326—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer introduction of oxygen into a nitride layer, e.g. changing SiN to SiON
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/28202—Making the insulator on single crystalline silicon, e.g. using a liquid, i.e. chemical oxidation in a nitrogen-containing ambient, e.g. nitride deposition, growth, oxynitridation, NH3 nitridation, N2O oxidation, thermal nitridation, RTN, plasma nitridation, RPN
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- 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
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/3165—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation
- H01L21/31683—Inorganic layers composed of oxides or glassy oxides or oxide based glass formed by oxidation of metallic layers, e.g. Al deposited on the body, e.g. formation of multi-layer insulating structures
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
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- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
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Abstract
Description
Claims (14)
- 반도체 기판에 소자 분리막을 형성하여 액티브 영역을 정의하는 단계;상기 소자 분리막이 형성된 반도체 기판 상에 AlN 박막을 형성하는 단계;상기 AlN 박막을 어닐링하여 게이트 유전체막을 형성하는 단계; 및상기 게이트 유전체막상에 게이트 전극을 형성하는 단계를 포함하여 이루어지는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막은 순수 Al 타겟과 N2/Ar을 이용한 반응성 스퍼터링으로 15 내지 100Å의 두께로 형성하며, N2유량비를 10 내지 100 sccm으로 하고, Ar 유량비를 10 내지 45 sccm으로 하며, 증착온도를 25℃ 내지 750℃로 하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 2 항에 있어서,상기 반응성 스퍼터링은 직류 마그네트론 플라즈마, 고주파 글로우 플라즈마, 고주파 코일중 어느 하나를 사용하는 것을 특징으로 하는 반도체 소자의 제조방법.
- 제 1 항에 있어서,상기 AlN 박막은 AlN 타겟과 Ar을 사용한 직류 마그네트론 또는 고주파 전력을 이용하여 15 내지 100Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막은 AlN을 이용한 전자 빔 증발을 이용하여 15 내지 100Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막은 450 내지 750℃의 증착 온도에서 전구체로 A1C13와 NH3, H2또는 N2를 사용하는 무기 소오스를 이용한 화학기상증착법이나 플라즈마 화학기상증착법으로 15 내지 100Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막은 450 내지 750℃의 증착 온도에서 전구체로 A1(CH3)3와 NH3, H2또는 N2를 사용하는 금속 유기 소오스를 이용한 화학기상증착법이나 플라즈마 화학기상증착법으로 15 내지 100Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막은 무기 소오스나 금속 유기 소오스를 사용하여 펄스 또는 사이클릭 화학기상증착법으로 15 내지 100Å의 두께로 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막은 Si 가 0.1 내지 2 wt% 함유된 도프트 A1을 사용하여 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막의 어닐링은 박막 내의 질소 공극을 제거를 을 제거하기 위해 산화 분위기에서 실시하고, 이로 인하여 AlN 박막은 AlN-A1203박막으로 변화되는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막의 어닐링은 산소 분위기의 반응로에서 450 내지 800℃의 온도로 30분 처리하거나, 급속 열 공정을 이용하여 02또는 N20분위기에서 램프비 20 내지 80℃/sec조건으로 450 내지 900℃의 온도에서 10 내지 60초 처리하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 게이트 전극은 폴리실리콘 구조, 폴리사이드 구조, 금속 구조중 어느 하나를 사용하여 형성하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막 형성전에 Si02막을 2 내지 10Å의 두께로 상기 반도체 기판 표면에 형성하는 단계를 추가하는 것을 특징으로 하는 반도체 소자의 제조 방법.
- 제 1 항에 있어서,상기 AlN 박막 형성전에 세정 공정을 추가하는 것을 특징으로 하는 반도체 소자의 제조 방법.
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US09/722,465 US6355548B1 (en) | 1999-12-22 | 2000-11-28 | Method for manufacturing a gate structure incorporated therein a high K dielectric |
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US9478637B2 (en) * | 2009-07-15 | 2016-10-25 | Taiwan Semiconductor Manufacturing Company, Ltd. | Scaling EOT by eliminating interfacial layers from high-K/metal gates of MOS devices |
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