In general failure analysis cases, a less invasive fault isolation approach can be utilized to resolve a visual root cause defect. In the case of nano technology, visual defects are not readily resolved, due to an increase in non-visible defects. The nonvisible defects result in a lower success rate since conventional FA methods/tools are not efficient in identifying the failure root cause. For the advanced nanometer process, this phenomenon is becoming more common; therefore the utilization of advanced techniques are required to get more evidence to resolve the failure mechanism. The use of na~oprobe technology enables advanced device characterization h order to obtain more clues to the possible failure mechanism before utilizing the traditional physical failure analysis techniques.

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