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公开(公告)号：US11862965B2
公开(公告)日：2024-01-02
申请号：US17664910
申请日：2022-05-25
发明人： Qi'an Xu
摘要： The present disclosure provides an electrostatic discharge protection circuit, a chip including a first pad and a second pad. The electrostatic discharge protection circuit includes a trigger unit and a discharge transistor. The trigger unit is connected between the first pad and the second pad, provided with a trigger terminal, and configured to generate a trigger signal when there is an electrostatic pulse on the first pad. The first pad is connected to a first voltage, the second pad is connected to a second voltage, and the first voltage is greater than the second voltage. The discharge transistor has a first terminal connected to the first pad, and a second terminal connected to the second pad, and discharges an electrostatic charge to the second pad when triggered by the trigger signal.
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公开(公告)号：US11936179B2
公开(公告)日：2024-03-19
申请号：US17810235
申请日：2022-06-30
发明人： Pan Mao , Yingtao Zhang , Junjie Liu , Lingxin Zhu , Bin Song , Qi'an Xu , Tieh-Chiang Wu
CPC分类号： H02H9/046 , H01L27/0255 , H01L27/0259 , H01L27/0288 , H01L27/0292
摘要： A discharge unit is connected to a power pad, a ground pad, and an I/O pad, and can discharge an electrostatic charge when an electrostatic pulse appears on any of the power pad, the ground pad, and the I/O pad. The discharge unit includes a first discharge unit and a second discharge unit, the first discharge unit is connected to the second discharge unit, the power pad, and the I/O pad, and the second discharge unit is connected to the ground pad and the I/O pad. The first discharge unit and/or the second discharge unit can discharge electrostatic charges on different pads, respectively.
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