JPWO2025028573A1 - - Google Patents

Info

Publication number
JPWO2025028573A1
JPWO2025028573A1 JP2025537478A JP2025537478A JPWO2025028573A1 JP WO2025028573 A1 JPWO2025028573 A1 JP WO2025028573A1 JP 2025537478 A JP2025537478 A JP 2025537478A JP 2025537478 A JP2025537478 A JP 2025537478A JP WO2025028573 A1 JPWO2025028573 A1 JP WO2025028573A1
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Pending
Application number
JP2025537478A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPWO2025028573A1 publication Critical patent/JPWO2025028573A1/ja
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D8/00Diodes
    • H10D8/422PN diodes having the PN junctions in mesas
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/01Manufacture or treatment
    • H10D12/031Manufacture or treatment of IGBTs
    • H10D12/032Manufacture or treatment of IGBTs of vertical IGBTs
    • H10D12/038Manufacture or treatment of IGBTs of vertical IGBTs having a recessed gate, e.g. trench-gate IGBTs
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/411Insulated-gate bipolar transistors [IGBT]
    • H10D12/417Insulated-gate bipolar transistors [IGBT] having a drift region having a doping concentration that is higher at the collector side relative to other parts of the drift region
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/411Insulated-gate bipolar transistors [IGBT]
    • H10D12/418Insulated-gate bipolar transistors [IGBT] having a drift region having a doping concentration that is higher at the emitter side relative to other parts of the drift region
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/411Insulated-gate bipolar transistors [IGBT]
    • H10D12/441Vertical IGBTs
    • H10D12/461Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions
    • H10D12/481Vertical IGBTs having non-planar surfaces, e.g. having trenches, recesses or pillars in the surfaces of the emitter, base or collector regions having gate structures on slanted surfaces, on vertical surfaces, or in grooves, e.g. trench gate IGBTs
    • 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
    • H10D62/10Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
    • H10D62/102Constructional design considerations for preventing surface leakage or controlling electric field concentration
    • H10D62/103Constructional design considerations for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse-biased devices
    • 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
    • H10D62/10Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
    • H10D62/129Cathode regions of diodes
    • 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
    • H10D62/50Physical imperfections
    • H10D62/53Physical imperfections the imperfections being within the semiconductor body 
    • 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
    • H10D62/60Impurity distributions or concentrations
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D64/00Electrodes of devices having potential barriers
    • H10D64/111Field plates
    • H10D64/117Recessed field plates, e.g. trench field plates or buried field plates
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/101Integrated devices comprising main components and built-in components, e.g. IGBT having built-in freewheel diode
    • H10D84/161IGBT having built-in components
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10DINORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/411Insulated-gate bipolar transistors [IGBT]
    • H10D12/415Insulated-gate bipolar transistors [IGBT] having edge termination structures
JP2025537478A 2023-08-01 2024-07-31 Pending JPWO2025028573A1 (enExample)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023125870 2023-08-01
PCT/JP2024/027384 WO2025028573A1 (ja) 2023-08-01 2024-07-31 半導体装置

Publications (1)

Publication Number Publication Date
JPWO2025028573A1 true JPWO2025028573A1 (enExample) 2025-02-06

Family

ID=94394893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2025537478A Pending JPWO2025028573A1 (enExample) 2023-08-01 2024-07-31

Country Status (4)

Country Link
US (1) US20250351498A1 (enExample)
JP (1) JPWO2025028573A1 (enExample)
DE (1) DE112024000321T5 (enExample)
WO (1) WO2025028573A1 (enExample)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014116666B4 (de) * 2014-11-14 2022-04-21 Infineon Technologies Ag Ein Verfahren zum Bilden eines Halbleiterbauelements
JP2017098318A (ja) * 2015-11-19 2017-06-01 三菱電機株式会社 半導体装置およびその製造方法
DE102017118975B4 (de) * 2017-08-18 2023-07-27 Infineon Technologies Ag Halbleitervorrichtung mit einem cz-halbleiterkörper und verfahren zum herstellen einer halbleitervorrichtung mit einem cz-halbleiterkörper
CN113892184B (zh) * 2019-12-18 2025-02-25 富士电机株式会社 半导体装置和半导体装置的制造方法

Also Published As

Publication number Publication date
DE112024000321T5 (de) 2025-11-13
WO2025028573A1 (ja) 2025-02-06
US20250351498A1 (en) 2025-11-13

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Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20250730