公开(公告)号：US09425185B2

公开(公告)日：2016-08-23

申请号：US14290141

申请日：2014-05-29

Applicant: GLOBALFOUNDRIES INC.

Inventor： Robert J. Gauthier, Jr. ,  Tom C. Lee ,  Junjun Li ,  You Li ,  Souvick Mitra

IPC: H02H9/00 ,  H01L27/02 ,  H01L23/525 ,  H01G17/00 ,  H01G13/00

CPC classification number: H01L27/0266 ,  H01G13/00 ,  H01G17/00 ,  H01L23/5256 ,  H01L27/0285 ,  H01L2924/0002 ,  Y10T29/435 ,  H01L2924/00

Abstract: Circuits and methods of fabricating circuits that provide electrostatic discharge protection, as well as methods of protecting an integrated circuit from electrostatic discharge. The protection circuit may include a power clamp device, a timing circuit including a resistor and a capacitor that is coupled with the resistor at a node, and a power clamp device coupled with the timing circuit at the node. The capacitor includes a plurality of capacitor elements. The protection circuit further includes a plurality of electronic fuses. Each electronic fuse is coupled with a respective one of the capacitor elements. A field effect transistor may be coupled in parallel with the resistor of the timing circuit, and may be used to bypass the resistor to provide a programming current to any electronic fuse coupled with a capacitor element of abnormally low impedance.

Abstract translation: 制造提供静电放电保护的电路的电路和方法，以及保护集成电路免受静电放电的方法。 保护电路可以包括功率钳位装置，包括电阻器的定时电路和与节点处的电阻器耦合的电容器，以及与节点处的定时电路耦合的功率钳位装置。 电容器包括多个电容器元件。 保护电路还包括多个电子保险丝。 每个电子熔断器与相应的一个电容器元件耦合。 场效应晶体管可以与定时电路的电阻并联耦合，并且可以用于旁路电阻器以向与异常低阻抗的电容器元件耦合的任何电子熔丝提供编程电流。