JP2023516867A - 逆選択性エッチング停止層 - Google Patents
逆選択性エッチング停止層 Download PDFInfo
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- 239000007769 metal material Substances 0.000 claims abstract description 85
- 238000000034 method Methods 0.000 claims abstract description 67
- 239000000758 substrate Substances 0.000 claims description 52
- 238000012545 processing Methods 0.000 claims description 48
- 239000003989 dielectric material Substances 0.000 claims description 27
- 238000012546 transfer Methods 0.000 claims description 21
- 238000000151 deposition Methods 0.000 claims description 20
- 238000005530 etching Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 19
- 230000000903 blocking effect Effects 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 238000002161 passivation Methods 0.000 claims description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 4
- 150000001343 alkyl silanes Chemical class 0.000 claims description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 2
- 150000003573 thiols Chemical class 0.000 claims description 2
- 229930195735 unsaturated hydrocarbon Natural products 0.000 claims description 2
- 238000000206 photolithography Methods 0.000 claims 1
- 230000015654 memory Effects 0.000 description 9
- 229910017052 cobalt Inorganic materials 0.000 description 7
- 239000010941 cobalt Substances 0.000 description 7
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 7
- 230000008021 deposition Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052814 silicon oxide Inorganic materials 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000005137 deposition process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- DQQNMIPXXNPGCV-UHFFFAOYSA-N 3-hexyne Chemical compound CCC#CCC DQQNMIPXXNPGCV-UHFFFAOYSA-N 0.000 description 1
- 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
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001803 electron scattering Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 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
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
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- 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
- H01L21/76885—By forming conductive members before deposition of protective insulating material, e.g. pillars, studs
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67161—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the layout of the process chambers
- H01L21/67167—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the layout of the process chambers surrounding a central transfer chamber
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67207—Apparatus for manufacturing or treating in a plurality of work-stations comprising a chamber adapted to a particular process
-
- 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
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68707—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a robot blade, or gripped by a gripper for conveyance
-
- 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
- H01L21/76801—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 dielectrics, e.g. smoothing
- H01L21/76829—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 dielectrics, e.g. smoothing characterised by the formation of thin functional dielectric layers, e.g. dielectric etch-stop, barrier, capping or liner layers
-
- 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
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/76883—Post-treatment or after-treatment of the conductive material
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- 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
- H01L21/76897—Formation of self-aligned vias or contact plugs, i.e. involving a lithographically uncritical step
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- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Robotics (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
- ing And Chemical Polishing (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Bipolar Transistors (AREA)
- Design And Manufacture Of Integrated Circuits (AREA)
Abstract
Description
Claims (20)
- 複数の特徴が中に形成されている第1の誘電体材料と、前記特徴の内部の第1の金属材料とを含む基板表面にエッチング停止層を選択的に堆積させるステップであって、前記エッチング停止層が、前記第1の金属材料の表面を覆う前記第1の誘電体材料の表面に堆積される、ステップと、
第2の金属材料を前記第1の金属材料の前記表面および前記エッチング停止層の上に堆積させるステップと、
前記第2の金属材料をエッチングして前記エッチング停止層の一部分を露出させるステップと
を含む、方法。 - 前記第1の誘電体材料が本質的に低k誘電体からなる、請求項1に記載の方法。
- 前記第1の金属材料が本質的に銅からなる、請求項1に記載の方法。
- 前記エッチング停止層が5以上の選択性で堆積される、請求項1に記載の方法。
- 前記第1の金属材料と前記第2の金属材料が同じ材料である、請求項1に記載の方法。
- 少なくとも1つの特徴がビアである、請求項1に記載の方法。
- 前記第1の金属材料の前記表面が、第1の誘電体材料の前記表面と同一平面上にある、請求項1に記載の方法。
- 前記第1の金属材料が前記特徴を完全には充填しない、請求項1に記載の方法。
- 前記第2の金属材料が前記特徴を充填し、前記基板の上面に堆積される、請求項8に記載の方法。
- 前記エッチング停止層を選択的に堆積させるステップが、
前記基板を阻止化合物に曝して前記第1の金属材料のパッシベーション表面を形成すること、および
前記エッチング停止層を、前記第1の金属材料の前記パッシベーション表面を覆う前記第1の誘電体材料の上に堆積させること
を含む、請求項1に記載の方法。 - 前記阻止化合物が、リン酸、アルキルシラン、ハロゲン化シラン、チオールまたは不飽和炭化水素のうちの1つ以上を含む、請求項10に記載の方法。
- 前記第2の金属材料を堆積させる前に、前記第1の金属材料の前記パッシベーション表面から前記阻止化合物を除去するステップをさらに含む、請求項10に記載の方法。
- 前記阻止化合物が、H2を含むプラズマに前記基板を曝すことによって除去される、請求項12に記載の方法。
- 前記エッチング停止層が窒化タンタル(TaN)を含む、請求項1に記載の方法。
- 前記第2の金属材料をエッチングすると、前記特徴のうちの少なくとも2つの内部の前記第1の金属材料同士間に導電経路が形をなす、請求項1に記載の方法。
- 前記第2の金属材料をエッチングするステップがフォトリソグラフィプロセスを含む、請求項1に記載の方法。
- 前記エッチング停止層の露出部分を除去するステップをさらに含む、請求項1に記載の方法。
- 前記第1の金属材料と前記第2の金属材料の間の抵抗が、非選択的(ブランケット)エッチング停止層によって形成された類似のデバイスの抵抗よりも小さい、請求項1に記載の方法。
- 複数の特徴が中に形成されている第1の誘電体材料と、前記特徴の内部の第1の金属材料とを含む基板を阻止化合物に曝して、前記第1の金属材料のパッシベーション表面を形成するステップと、
前記第1の金属材料の前記パッシベーション表面を覆う前記第1の誘電体材料の上に、エッチング停止層を選択的に堆積させるステップと、
前記阻止化合物を前記第1の金属材料の表面から除去するステップと、
前記第1の金属材料の前記表面および前記エッチング停止層の上に、第2の金属材料を堆積させるステップと、
フォトリソグラフィによって前記第2の金属材料をエッチングして前記エッチング停止層を露出させ、前記特徴のうちの少なくとも2つの内部の前記第1の金属材料同士間に導電経路を形成するステップと、
前記エッチング停止層の露出部分を除去するステップと
を含む、方法。 - 中心移送ステーションに連結されたチャンバ同士間で1つまたは複数の基板を移動させるように構成されたロボットを中に有する、前記中心移送ステーションと、
前記中心移送ステーションに連結されており、また、エッチング停止層を前記基板上に選択的に堆積させるように構成されている、第1の処理チャンバと、
前記中心移送ステーションに連結されており、また、金属材料を堆積させるように構成されている、第2の処理チャンバと、
前記中心移送ステーションに連結されており、また、金属材料をエッチングするように構成されている、第3の処理チャンバと、
前記中心移送ステーションならびに前記第1、第2および第3の処理チャンバに結合されている制御システムとを備える処理システムであって、前記制御システムが、前記第1、第2および第3の処理チャンバの間で前記基板を移動させるための第1の構成と、1つまたは複数のプロセスガスを前記第1の処理チャンバに供給して前記エッチング停止層を選択的に堆積させるための第2の構成と、1つまたは複数のプロセスガスを前記第2の処理チャンバに供給して前記金属材料を堆積させるための第3の構成と、1つまたは複数のプロセスガスを前記第3の処理チャンバに供給して金属材料をエッチングするための第4の構成とを含む、処理システム。
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US17/110,818 US11955382B2 (en) | 2020-12-03 | 2020-12-03 | Reverse selective etch stop layer |
US17/110,818 | 2020-12-03 | ||
PCT/US2021/061807 WO2022120166A1 (en) | 2020-12-03 | 2021-12-03 | Reverse selective etch stop layer |
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JP (1) | JP2023516867A (ja) |
KR (1) | KR20220114631A (ja) |
CN (1) | CN115039216A (ja) |
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WO2024122172A1 (ja) * | 2022-12-09 | 2024-06-13 | 株式会社Kokusai Electric | 基板処理方法、半導体装置の製造方法、基板処理装置、及びプログラム |
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JPH1167907A (ja) * | 1997-08-22 | 1999-03-09 | Nec Corp | 半導体装置およびその製造方法 |
US20170110397A1 (en) * | 2015-10-20 | 2017-04-20 | Taiwan Semiconductor Manufacturing Company, Ltd. | Method and apparatus for forming self-aligned via with selectively deposited etching stop layer |
US9793156B1 (en) * | 2016-09-12 | 2017-10-17 | International Business Machines Corporation | Self-aligned low resistance metallic interconnect structures |
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WO2020227274A1 (en) * | 2019-05-05 | 2020-11-12 | Applied Materials, Inc. | Selective deposition on non-metallic surfaces |
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JP3540302B2 (ja) | 2001-10-19 | 2004-07-07 | Necエレクトロニクス株式会社 | 半導体装置およびその製造方法 |
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US20220181204A1 (en) | 2022-06-09 |
KR20220114631A (ko) | 2022-08-17 |
US11955382B2 (en) | 2024-04-09 |
TW202238840A (zh) | 2022-10-01 |
CN115039216A (zh) | 2022-09-09 |
WO2022120166A1 (en) | 2022-06-09 |
TWI821805B (zh) | 2023-11-11 |
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