JP7531981B2 - 領域選択的堆積における横方向のフィルム成長を緩和するための方法 - Google Patents
領域選択的堆積における横方向のフィルム成長を緩和するための方法 Download PDFInfo
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- JP7531981B2 JP7531981B2 JP2022503017A JP2022503017A JP7531981B2 JP 7531981 B2 JP7531981 B2 JP 7531981B2 JP 2022503017 A JP2022503017 A JP 2022503017A JP 2022503017 A JP2022503017 A JP 2022503017A JP 7531981 B2 JP7531981 B2 JP 7531981B2
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- 238000000034 method Methods 0.000 title claims description 67
- 230000008021 deposition Effects 0.000 title description 12
- 230000000116 mitigating effect Effects 0.000 title 1
- 229910052751 metal Inorganic materials 0.000 claims description 114
- 239000002184 metal Substances 0.000 claims description 112
- 239000010410 layer Substances 0.000 claims description 66
- 239000000463 material Substances 0.000 claims description 65
- 230000000903 blocking effect Effects 0.000 claims description 48
- 239000013545 self-assembled monolayer Substances 0.000 claims description 47
- 239000000758 substrate Substances 0.000 claims description 40
- 239000002094 self assembled monolayer Substances 0.000 claims description 39
- 238000000151 deposition Methods 0.000 claims description 22
- 238000005530 etching Methods 0.000 claims description 12
- 229910044991 metal oxide Inorganic materials 0.000 claims description 12
- 150000004706 metal oxides Chemical class 0.000 claims description 12
- 150000004767 nitrides Chemical class 0.000 claims description 12
- 229910052707 ruthenium Inorganic materials 0.000 claims description 9
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 8
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 8
- 150000002736 metal compounds Chemical class 0.000 claims description 8
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910052715 tantalum Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 229910004140 HfO Inorganic materials 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- 150000007942 carboxylates Chemical class 0.000 claims description 3
- 238000003672 processing method Methods 0.000 claims description 2
- 125000003396 thiol group Chemical class [H]S* 0.000 claims 3
- 229910004166 TaN Inorganic materials 0.000 claims 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims 1
- 229910000077 silane Inorganic materials 0.000 claims 1
- 239000010408 film Substances 0.000 description 135
- 230000008569 process Effects 0.000 description 27
- 239000007789 gas Substances 0.000 description 11
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 8
- 238000000231 atomic layer deposition Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 150000003573 thiols Chemical class 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 5
- -1 MnO2 or Al2O3 ) Chemical class 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 239000012495 reaction gas Substances 0.000 description 4
- 150000004756 silanes Chemical class 0.000 description 4
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical class OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 3
- 150000001735 carboxylic acids Chemical class 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- GYSCBCSGKXNZRH-UHFFFAOYSA-N 1-benzothiophene-2-carboxamide Chemical compound C1=CC=C2SC(C(=O)N)=CC2=C1 GYSCBCSGKXNZRH-UHFFFAOYSA-N 0.000 description 2
- 229910015844 BCl3 Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910003910 SiCl4 Inorganic materials 0.000 description 2
- 229910003074 TiCl4 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- DZQISOJKASMITI-UHFFFAOYSA-N decyl-dioxido-oxo-$l^{5}-phosphane;hydron Chemical compound CCCCCCCCCCP(O)(O)=O DZQISOJKASMITI-UHFFFAOYSA-N 0.000 description 2
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- FTMKAMVLFVRZQX-UHFFFAOYSA-N octadecylphosphonic acid Chemical compound CCCCCCCCCCCCCCCCCCP(O)(O)=O FTMKAMVLFVRZQX-UHFFFAOYSA-N 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 150000003009 phosphonic acids Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- FAQYAMRNWDIXMY-UHFFFAOYSA-N trichloroborane Chemical compound ClB(Cl)Cl FAQYAMRNWDIXMY-UHFFFAOYSA-N 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- GHVNFZFCNZKVNT-UHFFFAOYSA-N Decanoic acid Natural products CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 1
- 229910004541 SiN Inorganic materials 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- ZLZGHBNDPINFKG-UHFFFAOYSA-N chloro-decyl-dimethylsilane Chemical compound CCCCCCCCCC[Si](C)(C)Cl ZLZGHBNDPINFKG-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- BCNZYOJHNLTNEZ-UHFFFAOYSA-N tert-butyldimethylsilyl chloride Chemical compound CC(C)(C)[Si](C)(C)Cl BCNZYOJHNLTNEZ-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- QRPMCZNLJXJVSG-UHFFFAOYSA-N trichloro(1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-henicosafluorodecyl)silane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)[Si](Cl)(Cl)Cl QRPMCZNLJXJVSG-UHFFFAOYSA-N 0.000 description 1
- PYJJCSYBSYXGQQ-UHFFFAOYSA-N trichloro(octadecyl)silane Chemical compound CCCCCCCCCCCCCCCCCC[Si](Cl)(Cl)Cl PYJJCSYBSYXGQQ-UHFFFAOYSA-N 0.000 description 1
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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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/285—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
- H01L21/28506—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
- H01L21/28512—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
- H01L21/28556—Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table by chemical means, e.g. CVD, LPCVD, PECVD, laser CVD
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- 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
- H01L21/02274—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 in the presence of a plasma [PECVD]
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- 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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- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02299—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer pre-treatment
- H01L21/02304—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer pre-treatment formation of intermediate layers, e.g. buffer layers, layers to improve adhesion, lattice match or diffusion barriers
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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
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/32—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 using masks
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- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
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- 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
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Description
本出願は、2019年7月18日に出願された米国仮特許出願第62/875,882号明細書に関連し、且つそれに対する優先権を主張するものであり、その内容全体が参照により本明細書に援用される。
Claims (24)
- 第1のフィルム、第2のフィルム及び第3のフィルムを含む基板を提供する工程であって、前記第1のフィルム、前記第2のフィルム及び前記第3のフィルムは異なる化学組成を有する、工程と、
前記第1のフィルム上に第1のブロック層を形成する工程と、
前記第2のフィルム上に第2のブロック層を形成する工程であって、前記第2のブロック層は、前記第1のブロック層と異なり、前記第1のブロック層及び前記第2のブロック層は自己組織化単分子層(SAM)を含む、工程と、
前記第3のフィルム上に材料フィルムを選択的に形成する工程と
を含む基板処理方法。 - 前記第1のフィルム、前記第2のフィルム及び前記第3のフィルムは、金属フィルム、金属含有ライナー及び誘電性フィルムからなる群から選択される、請求項1に記載の方法。
- 前記金属含有ライナーは、金属化合物又は前記金属フィルムと異なる第2の金属フィルムを含む、請求項2に記載の方法。
- 前記金属化合物は、TiN、TaN、MnO2又はAl2O3を含み、及び前記第2の金属フィルムは、Co又はRuを含む、請求項3に記載の方法。
- 前記金属フィルムは、Cu、Al、Ta、Ti、W、Ru、Co、Ni、Pt又はMoを含む、請求項2に記載の方法。
- 前記誘電性フィルムは、SiO2、Al2O3、HfO2、TiO2、ZrO2、SiN、SiCN、SiCOH又はこれらの組み合わせを含む、請求項2に記載の方法。
- 前記SAMは、チオール、シラン、カルボキシレート又はホスホネートを含む、請求項1に記載の方法。
- 前記材料フィルムは、SiO2、金属、金属酸化物又は金属窒化物を含む、請求項1に記載の方法。
- 前記金属酸化物は、HfO2、ZrO2又はAl2O3を含有し、及び前記金属窒化物は、HfN、ZrN又はAlNを含有する、請求項8に記載の方法。
- 第1のフィルム、第2のフィルム及び第3のフィルムを含む基板を提供する工程であって、前記第1のフィルム、前記第2のフィルム及び前記第3のフィルムは異なる化学組成を有する、工程と、
前記第1のフィルム上に第1のブロック層を形成する工程と、
前記第2のフィルム上に第2のブロック層を形成する工程であって、前記第2のブロック層は、前記第1のブロック層と異なる、工程と、
前記第3のフィルム上に材料フィルムを選択的に形成する工程であって、
前記第3のフィルム上に前記材料フィルムを選択的に形成する前記工程は、
前記第3のフィルム上に前記材料フィルムを堆積させる工程と、
前記第1のフィルム、前記第2のフィルム又は前記第1のフィルムと前記第2のフィルムとの両方の上に材料フィルム核を堆積させる工程と、
エッチングにより、前記材料フィルム核を除去する工程と、を含む工程と
を含む基板処理方法。 - 金属フィルムを含む基板、前記金属フィルムを取り囲む金属含有ライナー及び前記金属含有ライナーを取り囲む誘電性フィルムを提供する工程と、
前記金属フィルム上において、第1の自己組織化単分子層(第1のSAM)を含む第1のブロック層を形成する工程と、
前記金属含有ライナー上において、第2の自己組織化単分子層(第2のSAM)を含む第2のブロック層を形成する工程であって、前記第2のSAMは、前記第1のSAMと異なる、工程と、
前記誘電性フィルム上に材料フィルムを選択的に形成する工程と
を含む基板処理方法。 - 前記金属含有ライナーは、金属化合物又は前記金属フィルムと異なる第2の金属フィルムを含む、請求項11に記載の方法。
- 前記金属化合物は、TiN、TaN、MnO2又はAl2O3を含み、及び前記第2の金属フィルムは、Co又はRuを含む、請求項12に記載の方法。
- 前記金属フィルムは、Cu、Al、Ta、Ti、W、Ru、Co、Ni、Pt又はMoを含む、請求項11に記載の方法。
- 前記誘電性フィルムは、SiO2、Al2O3、HfO2、TiO2、ZrO2、SiN、SiCN、SiCOH又はこれらの組み合わせを含む、請求項11に記載の方法。
- 前記第1のSAMは、チオールを含み、及び前記第2のSAMは、ホスホネートを含む、請求項11に記載の方法。
- 前記材料フィルムは、SiO2、金属、金属酸化物又は金属窒化物を含む、請求項11に記載の方法。
- 前記誘電性フィルム上に前記材料フィルムを選択的に形成する前記工程は、
前記誘電性フィルム上に前記材料フィルムを堆積させる工程と、
前記金属フィルム、前記金属含有ライナー又は前記金属フィルムと前記金属含有ライナーとの両方の上に材料フィルム核を堆積させる工程と、
エッチングにより、前記材料フィルム核を除去する工程と
を含む、請求項11に記載の方法。 - 金属フィルムと、金属化合物を含有し且つ前記金属フィルムを取り囲む金属含有ライナーと、前記金属含有ライナーを取り囲む誘電性フィルムとを含む基板を提供する工程と、
前記金属フィルム上において、第1の自己組織化単分子層(第1のSAM)を含む第1のブロック層を形成する工程と、
前記金属含有ライナー上において、第2の自己組織化単分子層(第2のSAM)を含む第2のブロック層を形成する工程と、
前記誘電性フィルム上において、材料フィルムを選択的に形成する工程であって、
前記誘電性フィルム上に前記材料フィルムを堆積させることと、
前記金属フィルム、前記金属含有ライナー又は前記金属フィルムと前記金属含有ライナーフィルムとの両方の上に材料フィルム核を堆積させることと、
エッチングにより、前記材料フィルム核を除去することと
により、選択的に形成する工程と
を含む基板処理方法。 - 前記第1のSAMは、チオールを含み、及び前記第2のSAMは、ホスホネートを含む、請求項19に記載の方法。
- 前記第2のSAMは、ホスホネート又はカルボキシレートを含む、請求項19に記載の方法。
- 前記第2のSAMを形成する工程は、前記第1のSAMを高密度化する、請求項19に記載の方法。
- 前記第1のフィルム、前記第2のフィルム及び前記第3のフィルムは、金属フィルム、金属含有ライナー及び誘電性フィルムからなる群から選択される、請求項10記載の方法。
- 前記材料フィルムはSiO 2 、金属、金属酸化物又は金属窒化物を含む、請求項10記載の方法。
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