Exploring an On-Chip Sensor to Detect Unique Faults in RRAMs

Memristive devices have become promising candidates to complement and/or replace the CMOS technology, due to their CMOS manufacturing process compatibility, zero standby power consumption, high scalability, as well as their capability to implement high-density memories and new computing paradigms. Despite these advantages, memristive devices are...

Improving the Detection of Undefined State Faults in FinFET SRAMs

Manufacturing defects in FinFET SRAMs can cause hard-to-detect faults such as Undefined State Faults (USFs). Detection of USFs is not trivial, as they may not lead to incorrect functionality. Nevertheless, undetected USFs may have a severe impact on the memory's quality: they can cause random read outputs, which might lead to test escapes and no...

Detecting Random Read Faults to Reduce Test Escapes in FinFET SRAMs

Manufacturing defects in FinFET SRAMs can cause hard-to-detect faults such as Random Read Faults (RRFs). Detection of RRFs is not trivial, as they may not lead to incorrect outputs. Undetected RRFs become test escapes, which might lead to no-trouble-found devices and early in-field failures. Therefore, the detection of RRFs is of utmost...

Hard-to-Detect Fault Analysis in FinFET SRAMs

Manufacturing defects can cause hard-to-detect (HTD) faults in fin field-effect transistor (FinFET) static random access memories (SRAMs). Detection of these faults, such as random read outputs and out-of-spec parametric deviations, is essential when testing FinFET SRAMs. Undetected HTD faults result in test escapes, which lead to early in-field...

DFT Scheme for Hard-to-Detect Faults in FinFET SRAMs

Hard-to-detect faults such as weak and random faults in FinFET SRAMs represent an important challenge for manufacturing testing in scaled technologies, as they may lead to test escapes. This paper proposes a Design-for-Testability (DFT) scheme able to detect such faults by monitoring the bitline swing of FinFET memories. Using only five...

A defect-oriented test approach using on-Chip current sensors for resistive defects in FinFET SRAMs

Resistive defects in FinFET SRAMs are an important challenge for manufacturing test in submicron technologies, as they may cause dynamic faults, which are hard to detect and therefore may increase the number of test escapes. This paper presents a defect-oriented test that uses On-Chip Current Sensors (OCCSs) to detect weak resistive defects...