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In this study, we thoroughly investigated AC TDDB in BEOL extreme low-k (ELK) dielectric in 10nm technology. We demonstrated that AC TDDB of ELK dielectric has better median-time-to-failure (MTTF) and also much tighter Weibull distribution than constant voltage stress (DC TDDB). In unipolar AC TDDB stress, a very significant recovery process was observed. Through the capacitance recovery analysis,...
Additive manufacturing (AM) has the advantages of fabricating complex models for application. In this study, cube structure with various porosity is manufactured by AM of selective laser melting (SLM). CAD software is used to create the micro porosity of sample models from 60 %∼80 %. The models are printed by Ti-6Al-4V powders. The morphology of the printed porous structures are examined by OM and...
Advanced junction scaling with device performance gain, leakage reduction and reduced threshold voltage (Vth) variation are critical for CMOS 28nm node and future scaling. In this paper, implant induced defect engineering for higher drive current with reduced SRAM defectivity, advanced junction formation and Vth mismatch (Vtmin) on a state-of-the-art 28nm logic flow are demonstrated and discussed.
In this paper, we have demonstrated that cryogenic implantation applied to source and drain (SD) extension, pocket/halo and SD formation offers advantages for higher core and SRAM driving current and one order lower Ioff bulk (Ioffb) leakage in NMOS with reduced SRAM defectivity. Atomistic Kinetic Monte Carlo (KMC) modeling confirms that the cryo-implantation has enabled a unique control of active...
Under the target of mergers & acquisitions (M&As), in addition to askingthe traditional financial synergy of the maximization of shareholder wealth objectives, it is alsonecessary to think the social care and environmental commitment of social responsibility for the trend of sustainable operation.This paper mainly uses the mathematical model to evaluate how to decide M&As with the sustainability...
This paper uses two algorithms based on the methodology that introduces attribute reduction of rough sets into crossover of genetic algorithms (GAs). The first algorithm selects the crossover points, either by attribute reduction or randomly; the second one selects the crossover points solely by attribute reduction, with no crossover otherwise. We test the methodology on the solving of multidimensional...
This paper uses stochastic frontier analysis (SFA) to study 12 international airports in the Asia-Pacific region based on data from the period 1998-2006. The SFA model uses a translog production function that is more flexible than a Cobb-Douglas one that is popularly used in the literature. As an extension of a previous study, this paper mainly discusses the implications of the parameter estimates...
We proposed the concept of information object to construct an information system. An information object is the basic unit in the information management system. An information object is an entity that encapsulates the required data and methods in a unit. The methods of an information object can be flexibly installed or changed as needed. In this paper, we apply the information object concept to develop...
A soft switching active-clamp dual series-resonant converter is proposed in this paper. Two small transformers are used at the proposed topology to provide more load power. An active-clamp circuit is used to absorb the energy stored in the leakage inductor of transformer, to clamp voltage stresses across switches, and to realize the ZVS turn-on of switches in order to alleviate the switching losses...
The gap state density of nano-crystalline silicon active layer on flexible substrate will be redistributed with mechanical bending. The weak or broken bonds may contribute to the redistribution of trap states. During mechanical strain the deep states are redistributed in a Gaussian distribution, and are dissimilar to ordinary acceptor-like deep states which manifest with exponential distributions...
We proposed a hybrid C+L band fiber amplifier bridged with double-pass dispersion compensators. Power equalization among C+L band channels is realized by adjusting the FBGs reflectivity. Pumping efficiency is improved by recycling residual pump power.
This paper presents a zero voltage switching (ZVS) Cuk converter with double ended rectifier to reduce switching losses on power semiconductors, decrease voltage stresses on rectifier diodes and achieve power delivery to output load in positive and negative half cycle of the secondary winding voltage. An auxiliary switch and a clamp capacitor are connected in parallel with the primary side of the...
This paper presents a new isolated dc/dc converter with zero-voltage turn-on switching (ZVS) of power switches and zero-current turn-off switching (ZCS) of diodes. In conventional flyback converter, the main drawbacks are high voltage stresses on power devices large transformer size, and serious reverse recovery current which resulted in high voltage spike across output diode. To solve these problems,...
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