KR102785607B1 - 플라즈마 처리와 증기 처리의 결합을 사용한 Al2O3의 원자층 에칭 - Google Patents

플라즈마 처리와 증기 처리의 결합을 사용한 Al2O3의 원자층 에칭 Download PDF

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KR102785607B1
KR102785607B1 KR1020170025532A KR20170025532A KR102785607B1 KR 102785607 B1 KR102785607 B1 KR 102785607B1 KR 1020170025532 A KR1020170025532 A KR 1020170025532A KR 20170025532 A KR20170025532 A KR 20170025532A KR 102785607 B1 KR102785607 B1 KR 102785607B1
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substrate
plasma
substrate surface
ale
exposing
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KR20170102429A (ko
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안드레아스 피셔
토르스텐 릴
리차드 자넥
존 보니페이스
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램 리써치 코포레이션
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    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10PGENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P50/00Etching of wafers, substrates or parts of devices
    • H10P50/20Dry etching; Plasma etching; Reactive-ion etching
    • H10P50/28Dry etching; Plasma etching; Reactive-ion etching of insulating materials
    • H10P50/282Dry etching; Plasma etching; Reactive-ion etching of insulating materials of inorganic materials
    • H10P50/283Dry etching; Plasma etching; Reactive-ion etching of insulating materials of inorganic materials by chemical means
    • H10P50/285Dry etching; Plasma etching; Reactive-ion etching of insulating materials of inorganic materials by chemical means of materials not containing Si, e.g. PZT or Al2O3
    • H01L21/3065
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/02Pretreatment of the material to be coated
    • C23C16/0227Pretreatment of the material to be coated by cleaning or etching
    • C23C16/0245Pretreatment of the material to be coated by cleaning or etching by etching with a plasma
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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    • C23F1/00Etching metallic material by chemical means
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    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00Etching metallic material by chemical means
    • C23F1/10Etching compositions
    • C23F1/12Gaseous compositions
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F4/00Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00
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    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32Gas-filled discharge tubes
    • H01J37/32009Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
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    • H01J37/00Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
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    • H05H1/24Generating plasma
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    • H10P14/00Formation of materials, e.g. in the shape of layers or pillars
    • H10P14/60Formation of materials, e.g. in the shape of layers or pillars of insulating materials
    • H10P14/65Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials
    • H10P14/6516Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials
    • H10P14/6529Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by exposure to a gas or vapour
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    • H10P14/6532Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed after formation of the materials by exposure to a gas or vapour by exposure to a plasma
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    • H10P14/00Formation of materials, e.g. in the shape of layers or pillars
    • H10P14/60Formation of materials, e.g. in the shape of layers or pillars of insulating materials
    • H10P14/69Inorganic materials
    • H10P14/692Inorganic materials composed of oxides, glassy oxides or oxide-based glasses
    • H10P14/6938Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides
    • H10P14/6939Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides characterised by the metal
    • H10P14/69391Inorganic materials composed of oxides, glassy oxides or oxide-based glasses the material containing at least one metal element, e.g. metal oxides, metal oxynitrides or metal oxycarbides characterised by the metal the material containing aluminium, e.g. Al2O3
    • HELECTRICITY
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    • H10P50/00Etching of wafers, substrates or parts of devices
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    • H10P50/24Dry etching; Plasma etching; Reactive-ion etching of semiconductor materials
    • H10P50/242Dry etching; Plasma etching; Reactive-ion etching of semiconductor materials of Group IV materials
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    • H10P50/24Dry etching; Plasma etching; Reactive-ion etching of semiconductor materials
    • H10P50/242Dry etching; Plasma etching; Reactive-ion etching of semiconductor materials of Group IV materials
    • H10P50/244Dry etching; Plasma etching; Reactive-ion etching of semiconductor materials of Group IV materials comprising alternated and repeated etching and passivation steps
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    • H10P50/26Dry etching; Plasma etching; Reactive-ion etching of conductive or resistive materials
    • H10P50/264Dry etching; Plasma etching; Reactive-ion etching of conductive or resistive materials by chemical means
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    • H10P50/267Dry etching; Plasma etching; Reactive-ion etching of conductive or resistive materials by chemical means by vapour etching only using plasmas
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    • H10WGENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W20/00Interconnections in chips, wafers or substrates
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B81MICROSTRUCTURAL TECHNOLOGY
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    • B81C2201/013Etching
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    • B81MICROSTRUCTURAL TECHNOLOGY
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    • B81C2201/01Manufacture or treatment of microstructural devices or systems in or on a substrate
    • B81C2201/0101Shaping material; Structuring the bulk substrate or layers on the substrate; Film patterning
    • B81C2201/0128Processes for removing material
    • B81C2201/013Etching
    • B81C2201/0135Controlling etch progression
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  • Plasma & Fusion (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
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  • Electromagnetism (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Drying Of Semiconductors (AREA)
KR1020170025532A 2016-03-01 2017-02-27 플라즈마 처리와 증기 처리의 결합을 사용한 Al2O3의 원자층 에칭 Active KR102785607B1 (ko)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201662302003P 2016-03-01 2016-03-01
US62/302,003 2016-03-01
US201662438978P 2016-12-23 2016-12-23
US62/438,978 2016-12-23
US15/435,838 2017-02-17
US15/435,838 US10256108B2 (en) 2016-03-01 2017-02-17 Atomic layer etching of AL2O3 using a combination of plasma and vapor treatments

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KR20170102429A KR20170102429A (ko) 2017-09-11
KR102785607B1 true KR102785607B1 (ko) 2025-03-21

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US (2) US10256108B2 (https=)
JP (1) JP6853065B2 (https=)
KR (1) KR102785607B1 (https=)
CN (2) CN113013032B (https=)
TW (1) TWI750151B (https=)

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