| 发明名称 |
Electrostatic discharge protection circuits and methods |
| 摘要 |
An electrostatic discharge (ESD) protection circuit includes an electrostatic discharge bus, first and second resistors coupled in series, first and second capacitors coupled in series, and first and second transistors. The first resistor is coupled to the electrostatic discharge bus. The first capacitor is coupled to the second resistor. The first transistor has a control input that is coupled between the first and the second resistors. The second transistor has a control input that is coupled between the first and the second capacitors. |
| 申请公布号 |
US9373612(B1) |
申请公布日期 |
2016.06.21 |
| 申请号 |
US201313907140 |
申请日期 |
2013.05.31 |
| 申请人 |
Altera Corporation |
发明人 |
Huang Cheng-Hsiung;Bowers Kyle |
| 分类号 |
H02H9/00;H01L27/02 |
主分类号 |
H02H9/00 |
| 代理机构 |
|
代理人 |
Cahill Steven J. |
| 主权项 |
1. An electrostatic discharge protection circuit comprising:
an electrostatic discharge bus; first and second resistors that are directly connected in series, wherein the first resistor is coupled to the electrostatic discharge bus; first and second capacitors coupled in series, wherein the first capacitor is coupled to the second resistor; a first transistor comprising a control input that is directly connected between the first and the second resistors, wherein the first transistor is on during an electrostatic discharge event; and a second transistor comprising a control input that is coupled between the first and the second capacitors, wherein the second transistor is off during the electrostatic discharge event. |
| 地址 |
San Jose CA US |
