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Reliability of Superjunction (SJ) MOSFET is closely related to its manufacturing process. Experiments are carried out to investigate the electrical characteristics in high temperature of SJ MOSFET produced by deep trench filling technology. Filling holes are confirmed to be responsible for the performance deterioration in high temperature and the mechanism has been analyzed thoroughly.
RF Power amplifier often demands Zero-defect in application. However, it sees non-uniform stress during application. The time depend stress level depends on the input signals. This paper presents a way to predict the gate oxide lifetime, not only for the intrinsic oxide breakdown, but also for the extrinsic oxide breakdown. An appropriate gate oxide screening condition would enable the desired quality...
This study investigates the bias temperature instability in high-k/metal-gate pMOSFETs with a TiN barrier layer sandwiched between the metal gate electrode and HfO2 dielectric and for reliability improvement of such devices. The experimental results clearly demonstrated that the diffusion mechanism of oxygen and nitrogen resulting from the post metallization treatment was the root cause of bias temperature...
In this paper, a new and simple method named Weibull criterion is proposed to identify whether metastable states occur in single random telegraph noise (RTN), which has been verified by both simulation and experiment results. It is helpful for comprehensive understanding of trap properties and providing a direct evidence of oxide traps with multiple states.
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