- 专利标题: Electrical overstress protection for electronic systems subject to electromagnetic compatibility fault conditions
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申请号: US16719490申请日: 2019-12-18
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公开(公告)号: US11362203B2公开(公告)日: 2022-06-14
- 发明人: Javier A. Salcedo , Linfeng He
- 申请人: Analog Devices, Inc.
- 申请人地址: US MA Norwood
- 专利权人: Analog Devices, Inc.
- 当前专利权人: Analog Devices, Inc.
- 当前专利权人地址: US MA Norwood
- 代理机构: Knobbe, Martens, Olson & Bear, LLP
- 主分类号: H01L27/02
- IPC分类号: H01L27/02 ; H01L29/74 ; H01L27/08 ; H01L27/12 ; H01L29/08
摘要:
Electrical overstress protection for electronic systems subject to electromagnetic compatibility fault conditions are provided herein. In certain implementations, a stacked thyristor protection structure with a high holding voltage includes a protection device having a trigger voltage and a holding voltage. A trigger voltage of the stacked thyristor protection structure is substantially equal to the trigger voltage of the protection device. The stacked thyristor protection structure further includes at least one resistive thyristor electrically connected to the protection device and operable to increase a holding voltage of the stacked thyristor protection structure relative to the holding voltage of the protection device. The at least one resistive thyristor comprising a PNP bipolar transistor and a NPN bipolar transistor that are cross-coupled, and a conductor connecting a collector of the PNP bipolar transistor to a collector of the NPN bipolar transistor.
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