公开(公告)号：EP4295398A1

公开(公告)日：2023-12-27

申请号：EP22709457.0

申请日：2022-02-16

申请人： Wolfspeed, Inc.

发明人： LICHTENWALNER, Daniel Jenner ,  VAN BRUNT, Edward Robert ,  HARRINGTON, III, Thomas E. ,  SABRI, Shadi ,  HULL, Brett ,  MCPHERSON, Brice ,  MCPHERSON, Joe W.

IPC分类号： H01L23/482 ,  H01L23/00 ,  H01L29/423 ,  H01L29/78

公开(公告)号：EP4380056A2

公开(公告)日：2024-06-05

申请号：EP24170557.3

申请日：2020-06-05

申请人： Wolfspeed, Inc.

发明人： RICHMOND, James ,  VAN BRUNT, Edward Robert ,  STEINMANN, Philipp

IPC分类号： H03K17/74

CPC分类号： H03K17/0822 ,  H03K17/0828 ,  H03K17/74

摘要： A transistor semiconductor die includes a first current terminal, a second current terminal, and a control terminal. A semiconductor structure is between the first current terminal, the second current terminal, and the control terminal and configured such that a resistance between the first current terminal and the second current terminal is based on a control signal provided at the control terminal. Short circuit protection circuitry is coupled between the control terminal and the second current terminal. In a normal mode of operation, the short circuit protection circuitry is configured to provide a voltage drop that is greater than a voltage of the control signal. In a short circuit protection mode of operation, the short circuit protection circuitry is configured to provide a voltage drop that is less than a voltage of the control signal.

公开(公告)号：EP4241307A1

公开(公告)日：2023-09-13

申请号：EP21815776.6

申请日：2021-11-02

申请人： Wolfspeed, Inc.

发明人： VAN BRUNT, Edward Robert ,  MCPHERSON, Joe W. ,  HARRINGTON, III, Thomas E. ,  RYU, Sei-Hyung ,  HULL, Brett ,  JI, In-Hwan

IPC分类号： H01L29/06 ,  H01L29/78 ,  H01L29/40

公开(公告)号：EP4143887A1

公开(公告)日：2023-03-08

申请号：EP21727014.9

申请日：2021-04-26

申请人： Wolfspeed, Inc.

发明人： LICHTENWALNER, Daniel Jenner ,  VAN BRUNT, Edward Robert

IPC分类号： H01L29/49 ,  H01L29/78

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.

发明人： HARRINGTON, Thomas E., III ,  LICHTENWALNER, Daniel Jenner ,  VAN BRUNT, Edward Robert

IPC分类号： H01L29/78 ,  H01L23/482

CPC分类号： H01L29/7813 ,  H01L29/1608 ,  H01L23/4824 ,  H01L29/7803 ,  H01L29/0623 ,  H01L29/1095

公开(公告)号：EP4380056A3

公开(公告)日：2024-08-07

申请号：EP24170557.3

申请日：2020-06-05

申请人： Wolfspeed, Inc.

发明人： RICHMOND, James ,  VAN BRUNT, Edward Robert ,  STEINMANN, Philipp

IPC分类号： H03K17/082 ,  H03K17/74

CPC分类号： H03K17/0828 ,  H03K17/0822 ,  H03K17/74

摘要： A transistor semiconductor die includes a first current terminal, a second current terminal, and a control terminal. A semiconductor structure is between the first current terminal, the second current terminal, and the control terminal and configured such that a resistance between the first current terminal and the second current terminal is based on a control signal provided at the control terminal. Short circuit protection circuitry is coupled between the control terminal and the second current terminal. In a normal mode of operation, the short circuit protection circuitry is configured to provide a voltage drop that is greater than a voltage of the control signal. In a short circuit protection mode of operation, the short circuit protection circuitry is configured to provide a voltage drop that is less than a voltage of the control signal.

公开(公告)号：EP4218057A1

公开(公告)日：2023-08-02

申请号：EP21799135.5

申请日：2021-09-22

申请人： Wolfspeed, Inc.

发明人： VAN BRUNT, Edward Robert ,  HARRINGTON, III, Thomas E.

IPC分类号： H01L29/78 ,  H01L29/06 ,  H01L29/739