Fifth Electronics Research Institute of Ministry of Industry and Information Technology

Lichao Hao

Yiqiang Chen

Yunfei En

Bo Hou

Dengyun Lei

Wenxiao Fang

Yun Huang

Yudong Lu

Ang Li

An ESD failure early warning circuit for an integrated circuit is disclosed, including a positive voltage stress generation module, a negative voltage stress generation module, a buck module, a warning output module, capacitors C, C, and diodes D, D, D, Dand D. The ESD failure early warning circuit can report a warning timely when there is an ESD event in the monitored integrated circuit, to improve the reliability of the device effectively. Moreover, the stress voltage generated by the positive voltage stress generation module and the negative voltage stress generation module is adjustable, so the stress voltage can be set flexibly by a user according to actual condition of the monitored integrated circuit. The present invention has high flexibility and wide application prospect.

ESD failure early warning circuit for integrated circuit

An on-chip TDDB degradation monitoring and failure early warning circuit for SoC. A control circuit module converts Qand Qsignals into a switch state control signal and outputs the switch state control signal to a digital conversion module for TDDB performance degradation. A MOS transistor of a first MOS transistor circuit within the digital conversion module for TDDB performance degradation is in a stress state of a supply voltage, and a MOS transistor of a second MOS transistor circuit is in a non-stress state. The first and second MOS transistor circuits output a first frequency value and a second frequency value to the output selection module. The output selection module outputs the first frequency value from the digital conversion module to the counter B for recording, or outputs the second frequency value to the counter A for recording. The counter module determines the degradation level of TDDB performance.

On-chip TDDB degradation monitoring and failure early warning circuit for SoC

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Guangzhou, China

Lichao Hao