JP7626754B2 - 半導体装置 - Google Patents

半導体装置 Download PDF

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Publication number
JP7626754B2
JP7626754B2 JP2022511579A JP2022511579A JP7626754B2 JP 7626754 B2 JP7626754 B2 JP 7626754B2 JP 2022511579 A JP2022511579 A JP 2022511579A JP 2022511579 A JP2022511579 A JP 2022511579A JP 7626754 B2 JP7626754 B2 JP 7626754B2
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Prior art keywords
pad
sealing resin
drive
plating layer
wire
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Japanese (ja)
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JPWO2021199635A1 (https=
Inventor
大地 丹羽
光俊 齊藤
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Rohm Co Ltd
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Rohm Co Ltd
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Priority to JP2025008993A priority Critical patent/JP7827903B2/ja
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/461—Leadframes specially adapted for cooling
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W42/00—Arrangements for protection of devices
    • H10W42/121—Arrangements for protection of devices protecting against mechanical damage
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D30/00—Field-effect transistors [FET]
    • H10D30/60—Insulated-gate field-effect transistors [IGFET]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/411—Chip-supporting parts, e.g. die pads
    • H10W70/417—Bonding materials between chips and die pads
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/421—Shapes or dispositions
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/421—Shapes or dispositions
    • H10W70/424—Cross-sectional shapes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/456—Materials
    • H10W70/457—Materials of metallic layers on leadframes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/464—Additional interconnections in combination with leadframes
    • H10W70/465—Bumps or wires
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
    • H10W70/40—Leadframes
    • H10W70/481—Leadframes for devices being provided for in groups H10D8/00 - H10D48/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/50—Bond wires
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W74/00—Encapsulations, e.g. protective coatings
    • H10W74/10—Encapsulations, e.g. protective coatings characterised by their shape or disposition
    • H10W74/111—Encapsulations, e.g. protective coatings characterised by their shape or disposition the semiconductor body being completely enclosed
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
    • H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
    • H10D62/83—Semiconductor 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
    • H10D62/832—Semiconductor 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
    • H10D62/8325—Silicon carbide
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/073—Connecting or disconnecting of die-attach connectors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/073—Connecting or disconnecting of die-attach connectors
    • H10W72/07331—Connecting techniques
    • H10W72/07336—Soldering or alloying
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/075—Connecting or disconnecting of bond wires
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/075—Connecting or disconnecting of bond wires
    • H10W72/07531—Techniques
    • H10W72/07532—Compression bonding, e.g. thermocompression bonding
    • H10W72/07533—Ultrasonic bonding, e.g. thermosonic bonding
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/071—Connecting or disconnecting
    • H10W72/075—Connecting or disconnecting of bond wires
    • H10W72/07541—Controlling the environment, e.g. atmosphere composition or temperature
    • H10W72/07552—Controlling the environment, e.g. atmosphere composition or temperature changes in structures or sizes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/30—Die-attach connectors
    • H10W72/351—Materials of die-attach connectors
    • H10W72/352—Materials of die-attach connectors comprising metals or metalloids, e.g. solders
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/50—Bond wires
    • H10W72/521—Structures or relative sizes of bond wires
    • H10W72/527—Multiple bond wires having different sizes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/50—Bond wires
    • H10W72/531—Shapes of wire connectors
    • H10W72/5363—Shapes of wire connectors the connected ends being wedge-shaped
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/50—Bond wires
    • H10W72/541—Dispositions of bond wires
    • H10W72/547—Dispositions of multiple bond wires
    • H10W72/5475—Dispositions of multiple bond wires multiple bond wires connected to common bond pads at both ends of the wires
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/50—Bond wires
    • H10W72/551—Materials of bond wires
    • H10W72/552—Materials of bond wires comprising metals or metalloids, e.g. silver
    • H10W72/5524—Materials of bond wires comprising metals or metalloids, e.g. silver comprising aluminium [Al]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/50—Bond wires
    • H10W72/59—Bond pads specially adapted therefor
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/851—Dispositions of multiple connectors or interconnections
    • H10W72/874—On different surfaces
    • H10W72/884—Die-attach connectors and bond wires
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H10W72/921—Structures or relative sizes of bond pads
    • H10W72/923—Bond pads having multiple stacked layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H10W72/921—Structures or relative sizes of bond pads
    • H10W72/926—Multiple bond pads having different sizes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H10W72/931—Shapes of bond pads
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H10W72/941—Dispositions of bond pads
    • H10W72/944—Dispositions of multiple bond pads
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W72/00—Interconnections or connectors in packages
    • H10W72/90—Bond pads, in general
    • H10W72/951—Materials of bond pads
    • H10W72/952—Materials of bond pads comprising metals or metalloids, e.g. PbSn, Ag or Cu
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W74/00—Encapsulations, e.g. protective coatings
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W90/00—Package configurations
    • H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
    • H10W90/731—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors
    • H10W90/736—Package configurations characterised by the relative positions of pads or connectors relative to package parts of die-attach connectors between a chip and a stacked lead frame, conducting package substrate or heat sink
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W90/00—Package configurations
    • H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
    • H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
    • H10W90/756—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between a chip and a stacked lead frame, conducting package substrate or heat sink

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  • Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
  • Lead Frames For Integrated Circuits (AREA)
JP2022511579A 2020-03-30 2021-01-28 半導体装置 Active JP7626754B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2025008993A JP7827903B2 (ja) 2020-03-30 2025-01-22 半導体装置

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2020060723 2020-03-30
JP2020060722 2020-03-30
JP2020060723 2020-03-30
JP2020060722 2020-03-30
PCT/JP2021/003011 WO2021199635A1 (ja) 2020-03-30 2021-01-28 半導体装置

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JP2025008993A Division JP7827903B2 (ja) 2020-03-30 2025-01-22 半導体装置

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JPWO2021199635A1 JPWO2021199635A1 (https=) 2021-10-07
JP7626754B2 true JP7626754B2 (ja) 2025-02-04

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JP2025008993A Active JP7827903B2 (ja) 2020-03-30 2025-01-22 半導体装置

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US (1) US20230105834A1 (https=)
JP (2) JP7626754B2 (https=)
CN (1) CN115380375A (https=)
DE (1) DE212021000164U1 (https=)
WO (1) WO2021199635A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112022005309T5 (de) * 2021-12-03 2024-08-29 Rohm Co., Ltd. Halbleiterbauteil
KR102890102B1 (ko) * 2022-09-16 2025-11-24 누보톤 테크놀로지 재팬 가부시키가이샤 반도체 장치 및 실장 기판

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WO2014128899A1 (ja) 2013-02-22 2014-08-28 株式会社 日立製作所 樹脂封止型電子制御装置
WO2015151273A1 (ja) 2014-04-04 2015-10-08 三菱電機株式会社 半導体装置
JP2016056451A (ja) 2014-09-05 2016-04-21 Ｊｆｅスチール株式会社 軟窒化用鋼および部品ならびにこれらの製造方法
JP2017208434A (ja) 2016-05-18 2017-11-24 Ｓｈプレシジョン株式会社 リードフレームの製造方法

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JP5123633B2 (ja) * 2007-10-10 2013-01-23 ルネサスエレクトロニクス株式会社 半導体装置および接続材料
US8779569B2 (en) * 2010-01-18 2014-07-15 Rohm Co., Ltd. Semiconductor device and method for manufacturing the same
WO2011121756A1 (ja) * 2010-03-31 2011-10-06 ルネサス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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JP5525335B2 (ja) * 2010-05-31 2014-06-18 株式会社日立製作所 焼結銀ペースト材料及び半導体チップ接合方法
JP5264939B2 (ja) * 2011-01-14 2013-08-14 新光電気工業株式会社 パッケージ部品及び半導体パッケージ
JP6121692B2 (ja) * 2012-11-05 2017-04-26 ルネサス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
JP5975911B2 (ja) * 2013-03-15 2016-08-23 ルネサスエレクトロニクス株式会社 半導体装置
WO2017154072A1 (ja) * 2016-03-07 2017-09-14 三菱電機株式会社 半導体装置および半導体装置の製造方法
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JP6877561B2 (ja) * 2017-09-21 2021-05-26 三菱電機株式会社 半導体装置およびこれを備えた電力変換装置
JP7016677B2 (ja) * 2017-11-21 2022-02-07 新光電気工業株式会社 リードフレーム、半導体装置、リードフレームの製造方法
JP7346385B2 (ja) * 2018-04-11 2023-09-19 ローム株式会社 半導体装置
CN112640096A (zh) * 2018-09-06 2021-04-09 三菱电机株式会社 半导体装置
US11521917B2 (en) * 2019-05-23 2022-12-06 Rohm Co., Ltd. Semiconductor device
US11302652B2 (en) * 2019-12-20 2022-04-12 Texas Instruments Incorporated Semiconductor package substrate with a smooth groove about a perimeter of a semiconductor die
WO2021155537A1 (en) * 2020-02-06 2021-08-12 Texas Instruments Incorporated Copper wire bond on gold bump on semiconductor die bond pad

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Publication number Priority date Publication date Assignee Title
WO2014128899A1 (ja) 2013-02-22 2014-08-28 株式会社 日立製作所 樹脂封止型電子制御装置
WO2015151273A1 (ja) 2014-04-04 2015-10-08 三菱電機株式会社 半導体装置
JP2016056451A (ja) 2014-09-05 2016-04-21 Ｊｆｅスチール株式会社 軟窒化用鋼および部品ならびにこれらの製造方法
JP2017208434A (ja) 2016-05-18 2017-11-24 Ｓｈプレシジョン株式会社 リードフレームの製造方法

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JP2025061585A (ja) 2025-04-10
CN115380375A (zh) 2022-11-22
US20230105834A1 (en) 2023-04-06
JP7827903B2 (ja) 2026-03-10
JPWO2021199635A1 (https=) 2021-10-07
DE212021000164U1 (de) 2021-11-29
WO2021199635A1 (ja) 2021-10-07

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