PL3940122T3 - Sposób wytwarzania wafla SiC - Google Patents

Sposób wytwarzania wafla SiC

Info

Publication number
PL3940122T3
PL3940122T3 PL21182272.1T PL21182272T PL3940122T3 PL 3940122 T3 PL3940122 T3 PL 3940122T3 PL 21182272 T PL21182272 T PL 21182272T PL 3940122 T3 PL3940122 T3 PL 3940122T3
Authority
PL
Poland
Prior art keywords
producing
sic wafer
sic
wafer
Prior art date
Application number
PL21182272.1T
Other languages
English (en)
Inventor
Jong Hwi Park
Kap Ryeol Ku
Sang Ki Ko
Jung Gyu Kim
Byung Kyu Jang
Jung Woo Choi
Myung Ok Kyun
Jongmin SHIM
Original Assignee
Senic Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Senic Inc. filed Critical Senic Inc.
Publication of PL3940122T3 publication Critical patent/PL3940122T3/pl

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10Inorganic compounds or compositions
    • C30B29/36Carbides
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D62/00Semiconductor bodies, or regions thereof, of devices having potential barriers
    • H10D62/80Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
    • H10D62/83Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
    • H10D62/832Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge being Group IV materials comprising two or more elements, e.g. SiGe
    • H10D62/8325Silicon carbide
    • 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
    • C23CCOATING 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
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24Vacuum evaporation
    • C23C14/26Vacuum evaporation by resistance or inductive heating of the source
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B23/00Single-crystal growth by condensing evaporated or sublimed materials
    • C30B23/002Controlling or regulating
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B23/00Single-crystal growth by condensing evaporated or sublimed materials
    • C30B23/002Controlling or regulating
    • C30B23/005Controlling or regulating flux or flow of depositing species or vapour
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B23/00Single-crystal growth by condensing evaporated or sublimed materials
    • C30B23/02Epitaxial-layer growth
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B23/00Single-crystal growth by condensing evaporated or sublimed materials
    • C30B23/02Epitaxial-layer growth
    • C30B23/025Epitaxial-layer growth characterised by the substrate
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B23/00Single-crystal growth by condensing evaporated or sublimed materials
    • C30B23/02Epitaxial-layer growth
    • C30B23/06Heating of the deposition chamber, the substrate or the materials to be evaporated
    • CCHEMISTRY; METALLURGY
    • C30CRYSTAL GROWTH
    • C30BSINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B33/00After-treatment of single crystals or homogeneous polycrystalline material with defined structure
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21Polarisation-affecting properties
    • G01N21/23Bi-refringence
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/20Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/20Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
    • G01N23/207Diffractometry using detectors, e.g. using a probe in a central position and one or more displaceable detectors in circumferential positions
    • 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
    • H10P14/00Formation of materials, e.g. in the shape of layers or pillars
    • H10P14/20Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
    • H10P14/24Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials using chemical vapour deposition [CVD]
    • 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
    • H10P14/00Formation of materials, e.g. in the shape of layers or pillars
    • H10P14/20Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
    • H10P14/29Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by the substrates
    • H10P14/2901Materials
    • H10P14/2902Materials being Group IVA materials
    • H10P14/2904Silicon carbide
    • 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
    • H10P14/00Formation of materials, e.g. in the shape of layers or pillars
    • H10P14/20Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
    • H10P14/34Deposited materials, e.g. layers
    • H10P14/3402Deposited materials, e.g. layers characterised by the chemical composition
    • H10P14/3404Deposited materials, e.g. layers characterised by the chemical composition being Group IVA materials
    • H10P14/3408Silicon carbide
    • 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
    • H10P74/00Testing or measuring during manufacture or treatment of wafers, substrates or devices
    • H10P74/20Testing or measuring during manufacture or treatment of wafers, substrates or devices characterised by the properties tested or measured, e.g. structural or electrical properties
    • H10P74/203Structural properties, e.g. testing or measuring thicknesses, line widths, warpage, bond strengths or physical defects
    • 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
    • H10P90/00Preparation of wafers not covered by a single main group of this subclass, e.g. wafer reinforcement
    • H10P90/12Preparing bulk and homogeneous wafers
    • H10P90/123Preparing bulk and homogeneous wafers by grinding or lapping
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00Investigating materials by wave or particle radiation
    • G01N2223/05Investigating materials by wave or particle radiation by diffraction, scatter or reflection
    • G01N2223/056Investigating materials by wave or particle radiation by diffraction, scatter or reflection diffraction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00Investigating materials by wave or particle radiation
    • G01N2223/10Different kinds of radiation or particles
    • G01N2223/101Different kinds of radiation or particles electromagnetic radiation
    • G01N2223/1016X-ray

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Physical Vapour Deposition (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
PL21182272.1T 2020-07-14 2021-06-29 Sposób wytwarzania wafla SiC PL3940122T3 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020200086798A KR102192518B1 (ko) 2020-07-14 2020-07-14 웨이퍼 및 웨이퍼의 제조방법

Publications (1)

Publication Number Publication Date
PL3940122T3 true PL3940122T3 (pl) 2024-03-11

Family

ID=74089982

Family Applications (1)

Application Number Title Priority Date Filing Date
PL21182272.1T PL3940122T3 (pl) 2020-07-14 2021-06-29 Sposób wytwarzania wafla SiC

Country Status (8)

Country Link
US (2) US11289576B2 (pl)
EP (1) EP3940122B1 (pl)
JP (1) JP7042996B2 (pl)
KR (1) KR102192518B1 (pl)
CN (1) CN114108092A (pl)
HU (1) HUE065016T2 (pl)
PL (1) PL3940122T3 (pl)
TW (1) TWI758186B (pl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT524251B1 (de) * 2020-09-28 2023-04-15 Ebner Ind Ofenbau Vorrichtung zum Züchten von Einkristallen
DE102021123991B4 (de) * 2021-09-16 2024-05-29 Pva Tepla Ag PVT-Verfahren und Apparatur zum prozesssicheren Herstellen von Einkristallen
KR102442732B1 (ko) 2021-11-05 2022-09-13 주식회사 쎄닉 탄화규소 웨이퍼 및 이의 제조방법
CN114347282A (zh) * 2022-01-18 2022-04-15 常州时创能源股份有限公司 硅片制备方法
CN114411258B (zh) * 2022-03-29 2022-07-08 中电化合物半导体有限公司 一种碳化硅晶体的生长方法及生长设备

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4416040B2 (ja) 1997-12-26 2010-02-17 住友電気工業株式会社 化合物半導体結晶
US6587172B1 (en) * 2000-05-03 2003-07-01 Three-Five Systems, Inc. Controlled angle retarder with liquid crystal cell bias tuned for a sequence of wavelengths
CN101536168A (zh) * 2006-09-14 2009-09-16 科锐有限公司 无微管碳化硅及其相关制备方法
KR100983195B1 (ko) 2007-12-28 2010-09-20 주식회사 실트론 2차원 선결함이 제어된 실리콘 잉곳, 웨이퍼, 에피택셜웨이퍼와, 그 제조방법 및 제조장치
JP4469396B2 (ja) 2008-01-15 2010-05-26 新日本製鐵株式会社 炭化珪素単結晶インゴット、これから得られる基板及びエピタキシャルウェハ
DE102008023054B4 (de) 2008-05-09 2011-12-22 Siltronic Ag Verfahren zur Herstellung einer epitaxierten Halbleiterscheibe
CN102534805B (zh) * 2010-12-14 2014-08-06 北京天科合达蓝光半导体有限公司 一种碳化硅晶体退火工艺
JP5696630B2 (ja) * 2011-09-21 2015-04-08 住友電気工業株式会社 炭化珪素基板およびその製造方法
JP2013245144A (ja) * 2012-05-28 2013-12-09 Bridgestone Corp 炭化珪素単結晶の製造方法
US8860040B2 (en) * 2012-09-11 2014-10-14 Dow Corning Corporation High voltage power semiconductor devices on SiC
US12215031B2 (en) * 2013-05-02 2025-02-04 Pallidus, Inc. High purity polysilocarb derived silicon carbide powder
JP5854013B2 (ja) * 2013-09-13 2016-02-09 トヨタ自動車株式会社 SiC単結晶の製造方法
US10711369B2 (en) 2014-12-05 2020-07-14 Showa Denko K.K. Method for producing silicon carbide single crystal and silicon carbide single crystal substrate
JP6597065B2 (ja) * 2015-08-31 2019-10-30 株式会社デンソー 炭化珪素単結晶、炭化珪素単結晶ウェハ、炭化珪素単結晶エピタキシャルウェハ、電子デバイス
US20170321345A1 (en) * 2016-05-06 2017-11-09 Ii-Vi Incorporated Large Diameter Silicon Carbide Single Crystals and Apparatus and Method of Manufacture Thereof
CN207058321U (zh) * 2016-05-11 2018-03-02 凯斯科技股份有限公司 具有氧化物层的晶片的抛光系统
KR102483003B1 (ko) * 2017-11-13 2022-12-30 주식회사 케이씨텍 웨이퍼 연마 시스템
KR102104751B1 (ko) * 2019-06-17 2020-04-24 에스케이씨 주식회사 탄화규소 잉곳 및 이의 제조방법
KR102068933B1 (ko) * 2019-07-11 2020-01-21 에스케이씨 주식회사 탄화규소 잉곳 성장용 분말 및 이를 이용한 탄화규소 잉곳의 제조방법
KR102192525B1 (ko) * 2020-02-28 2020-12-17 에스케이씨 주식회사 웨이퍼, 에피택셜 웨이퍼 및 이의 제조방법

Also Published As

Publication number Publication date
US20220020852A1 (en) 2022-01-20
TW202202675A (zh) 2022-01-16
EP3940122B1 (en) 2024-01-03
US11862685B2 (en) 2024-01-02
US11289576B2 (en) 2022-03-29
KR102192518B1 (ko) 2020-12-17
CN114108092A (zh) 2022-03-01
JP7042996B2 (ja) 2022-03-29
US20220157944A1 (en) 2022-05-19
JP2022018072A (ja) 2022-01-26
HUE065016T2 (hu) 2024-04-28
TWI758186B (zh) 2022-03-11
EP3940122A1 (en) 2022-01-19

Similar Documents

Publication Publication Date Title
PL3940122T3 (pl) Sposób wytwarzania wafla SiC
DE102020100101B8 (de) Verfahren zum ausbilden einer halbleitervorrichtungsstruktur
PL4063374T3 (pl) Sposób wytwarzania l-glufosynatu
EP3828318A4 (en) SIC WAFER AND MANUFACTURING PROCESS FOR SIC WAFER
KR102737019B9 (ko) 에칭 방법
EA202100102A1 (ru) СПОСОБ ПОЛУЧЕНИЯ МОНОКРИСТАЛЛИЧЕСКОГО SiC
EP3352197A4 (en) METHOD FOR PRODUCING A SIC COMPOUND SUBSTRATE
EP4089720A4 (en) METHOD FOR PRODUCING AN EPITACTIC WAFER AND EPITACTIC WAFER
PL3960911T3 (pl) Sposób wytwarzania bloku węglika krzemu
PL4046129T3 (pl) Sposób wytwarzania
PL4126862T3 (pl) Sposób wytwarzania związku będącego inhibitorem cot
EP3971954A4 (en) SEMICONDUCTOR STRUCTURE AND METHOD OF MANUFACTURE THEREOF
EP4481794A4 (en) ENGRAVING PROCESS
EP4411791A4 (en) EPITAXIAL WAFER AND ITS PRODUCTION METHOD
PL3942107T3 (pl) Sposób wytwarzania
EP4234223A4 (en) Method for manufacturing laminate
EP4421219A4 (en) Monocrystalline silicon substrate and its production process
EP3968371A4 (en) SEMICONDUCTOR STRUCTURE AND METHOD OF MANUFACTURE THEREOF
PL3848361T3 (pl) Sposób wytwarzania związku tetracyklicznego
EP4145494A4 (en) Semiconductor wafer cleaning method
EP4447093A4 (en) Wafer manufacturing method
EP4481795A4 (en) ENGRAVING PROCESS
EP4266354C0 (en) SIC SEMICONDUCTOR ELEMENT MANUFACTURING METHOD
GB2601404B (en) Method of preparing a silicon carbide wafer
EP4195253A4 (en) Semiconductor structure forming method and semiconductor structure