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Failure analysis on static condition (static leakage and standby current level) failed device would not cost long time to find root cause, but dynamic functional failure will. Failure analysis with dynamic strategy to localize a failure point is more significant in complicated function failed IC (Integrated Circuit). This paper would present an efficient strategy to locate the defect using dynamic...
A pre-modulated step-up DC-DC converter with high-conductance switches is proposed in this paper. The modified switches used in the charge pump extend the gate-source voltage of PMOS power transistors and adjust the threshold voltage of NOMS ones based on body effect when the switches turn on, contributing to the increase of conductance. Pre-modulation technique works to maintain the output voltage...
In our failure analysis, there were some dual die product which included one control die and power die, and there was no passivation on power die so as to radiate heat conveniently. We may occasionally meet some cases, which revealed simple leakage failure on external pins, such as OUTPUT-GND leakage. However, when we decapped the fail unit from front-side, failure disappeared and then we could do...
With scaling down of semiconductor devices, gate oxide degradation has been a reliability problem. So, emission microscope was developed to be applied in damaged gate oxide analysis in recent 20 years. We usually occurred some fail capacitor and resistor cases in FA (Failure Analysis). But in FA field no any paper summarized analysis of damaged capacitor and resistor with EMMI (Emission Microscope)...
FA (Failure Analysis) plays an important role in VLSI designing and manufacturing. In FA we usually handle the cases with open failure which we can't use FA tools (OBIRCH, EMMI and so on) to capture its location effectively. Therefore, it is an obstacle to improve success ratio of FA and reduce micro probing workload. In this paper, we proposed one FA idea to analyze gate floating when there were...
With the swift development of virtual reality technology, virtual environment has appealed more and more attention of educators. To date, many models and architectures are efficient in constructing virtual laboratory environment. This paper presents a novel Problem-driven Virtual Realization (PVR) model that is able to convert the realistic environment to the virtual environment. Based on the PVR...
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