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公开(公告)号:EP4211724A2
公开(公告)日:2023-07-19
申请号:EP21787121.9
申请日:2021-09-09
申请人: Wolfspeed, Inc.
IPC分类号: H01L29/40 , H01L21/336 , H01L29/78 , H01L29/47
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公开(公告)号:EP4211716A1
公开(公告)日:2023-07-19
申请号:EP21783106.4
申请日:2021-09-02
申请人: Wolfspeed, Inc.
发明人: NOORI, Basim , MARBELL, Marvin , SHEPPARD, Scott , LIM, Kwangmo Chris , KOMPOSCH, Alexander , MU, Qianli
IPC分类号: H01L23/047 , H01L23/31 , H01L23/495 , H01L23/66
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公开(公告)号:EP4207310A1
公开(公告)日:2023-07-05
申请号:EP23151813.5
申请日:2018-12-12
申请人: Wolfspeed, Inc.
IPC分类号: H01L29/861 , H01L29/872 , H01L29/78 , H01L29/36 , H01L29/06 , H01L29/08 , H01L29/16 , H01L21/336 , H01L21/329 , H01L29/10
摘要: A vertical semiconductor device includes a substrate, a buffer layer over the substrate, and a drift layer over the buffer layer. The substrate has a first doping type and a first doping concentration. The buffer layer has the first doping type and a second doping concentration that is less than the first doping concentration. The drift layer has the first doping type and a third doping concentration that is less than the second doping concentration.
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公开(公告)号:EP4181184A2
公开(公告)日:2023-05-17
申请号:EP22214761.3
申请日:2018-05-15
申请人: Wolfspeed, Inc.
发明人: DAS, Mrinal K , BARKLEY, Adam , FETZER, Brian , YOUNG, Jonathan , MIECZKOWSKI, Van , ALLEN, Scott
IPC分类号: H01L23/31 , H01L23/482 , H01L23/373 , H02M3/158 , H02M7/00 , H03K17/12 , H03K17/74 , H01L25/07 , H01L29/16 , H01L29/78 , H01L29/06 , H01L29/872 , H01L25/11 , H01L29/739
摘要: A power module includes a first terminal, a second terminal, and a number of semiconductor die coupled between the first terminal and the second terminal. The semiconductor die are configured to provide a low-resistance path for current flow from the first terminal to the second terminal during a forward conduction mode of operation and a high-resistance path for current flow from the first terminal to the second terminal during a forward blocking configuration. Due to improvements made to the power module, it is able to pass a temperature, humidity, and bias test at 80% of its rated voltage for at least 1000 hours.
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公开(公告)号:EP4173036A2
公开(公告)日:2023-05-03
申请号:EP21742641.0
申请日:2021-06-24
申请人: Wolfspeed, Inc.
发明人: LIM, Kwangmo Chris , NOORI, Basim , MU, Qianli , MARBELL, Marvin , SHEPPARD, Scott , KOMPOSCH, Alexander
IPC分类号: H01L23/66 , H01L23/482 , H03F3/19 , H05K1/02 , H01L23/498 , H01L23/538 , H01L29/20 , H01L29/423 , H01L29/778 , H03F3/72
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37.
公开(公告)号:EP4038741A1
公开(公告)日:2022-08-10
申请号:EP20780876.7
申请日:2020-09-15
申请人: Wolfspeed, Inc.
发明人: MU, Qianli , MOKHTI, Zulhazmi , GUO, Jia , SHEPPARD, Scott
IPC分类号: H03F1/32 , H01L29/20 , H01L29/417 , H01L29/778 , H03F3/195
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公开(公告)号:EP4029055A1
公开(公告)日:2022-07-20
申请号:EP20875483.8
申请日:2020-08-19
申请人: Wolfspeed, Inc.
发明人: JOO, Sung Chul , POWELL, Jack , FARRELL, Donald , MILLON, Bradley
IPC分类号: H01L27/00 , H01L33/62 , H01L23/482 , H01L23/528 , H01L29/872
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公开(公告)号:EP3984063A1
公开(公告)日:2022-04-20
申请号:EP20747542.7
申请日:2020-06-05
申请人: Wolfspeed, Inc.
IPC分类号: H01L23/495 , H01L25/07
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公开(公告)号:EP4416762A1
公开(公告)日:2024-08-21
申请号:EP22809240.9
申请日:2022-10-11
申请人: Wolfspeed, Inc.
IPC分类号: H01L29/78 , H01L23/482
CPC分类号: H01L29/7813 , H01L29/1608 , H01L23/4824 , H01L29/7803 , H01L29/0623 , H01L29/1095
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