基于内建自测的软错误与老化在线检测

负偏置温度不稳定性为主的老化会造成时序违规故障及软错误故障。为此，提出软错误与老化在线检测器(SEAOS)。在器件正常工作的情况下，在线检测上述2种故障。复用并发内建逻辑块观察器，使得硬件开销不超过30%。实验结果表明，在0.18 μm工艺尺寸下，与经典检测结构相比，SEAOS有较好的检测能力，且硬件开销较少。

Soft Error and Aging Online Detection Based on Built-in Self Test

Aiming at the dominant aging mechanism induced by Negative Bias Temperature Instability(NBTI) and the soft error,e.g.Single Event Upset(SEU),affect the normal operation of the device,this paper presents a sensor called Soft Error and Aging Online Sensor(SEAOS) that can on-line detect soft error and aging when the device is under its normal operation,to against SEU and the timing violations induced by aging.Due to the reuse of Concurrent Built-in Logic Block Observer(CBILBO),the hardware overhead below 33.46% is well tolerated.Experimental results demonstrate that,compared with several classical structures by employing 0.18 μm technology process,SEAOS has a good capacity of detection and a lower hardware overhead.