公开(公告)号：US09013845B1

公开(公告)日：2015-04-21

申请号：US13784161

申请日：2013-03-04

Applicant: Xilinx, Inc.

Inventor： James Karp

IPC: H02H9/04 ,  H02H3/20

CPC classification number: H02H3/202 ,  H02H3/20 ,  H02H9/041 ,  H02H9/046

Abstract: An electrostatic discharge (ESD) protection circuit for high-voltage power rails includes an RC-triggered clamp, one or more first forward-biased diodes coupled in series between a supply node and the first node; and one or more second forward-biased diodes coupled in series between the first node and the third node. The RC-triggered clamp includes: an RC-circuit having a resistor coupled between a first node and a second node, and a capacitor coupled between the second node and a third node; a transistor with a first source/drain, a gate, and a second source/drain; and an inverter. The first source/drain of the transistor is coupled to the first node, and the second source/drain is coupled to the third node. An input of the inverter is coupled to the second node, and an output of the inverter is coupled to the gate of the transistor.

Abstract translation: 用于高电压电源轨的静电放电（ESD）保护电路包括RC触发钳位电压，一个或多个第一正向偏压二极管串联耦合在电源节点和第一节点之间; 以及串联耦合在第一节点和第三节点之间的一个或多个第二正向偏置二极管。 RC触发钳位包括：具有耦合在第一节点和第二节点之间的电阻器的RC电路以及耦合在第二节点和第三节点之间的电容器; 具有第一源极/漏极，栅极和第二源极/漏极的晶体管; 和逆变器。 晶体管的第一源极/漏极耦合到第一节点，并且第二源极/漏极耦合到第三节点。 反相器的输入耦合到第二节点，反相器的输出耦合到晶体管的栅极。

公开(公告)号：US20140198416A1

公开(公告)日：2014-07-17

申请号：US13741619

申请日：2013-01-15

Applicant: Xilinx, Inc.

Inventor： James Karp

IPC: H02H9/04 ,  H01L27/06

CPC classification number: H02H9/044 ,  H01L27/0251 ,  H01L27/0255 ,  H01L27/0629

Abstract: A circuit for enabling the discharge of electric charge in an integrated circuit is described. The circuit comprises an input/output pad coupled to a first node; a first diode coupled between the first node and a ground node; a transistor coupled in parallel with the first diode between the first node and ground node; and a resistor coupled between a body portion of the transistor and the ground node. A method of enabling the discharge of electric charge is also described.

Abstract translation: 描述了用于使能集成电路中的电荷放电的电路。 该电路包括耦合到第一节点的输入/输出垫; 耦合在第一节点和接地节点之间的第一二极管; 与所述第一节点和所述接地节点之间的所述第一二极管并联耦合的晶体管; 以及耦合在晶体管的主体部分和接地节点之间的电阻器。 还描述了能够进行电荷放电的方法。