In this paper we describe the dynamics of MEMS oscillators that can be used as frequency filters. The unique feature of these devices is that they use parametric resonance, as opposed to the usual linear resonance, for frequency selection. However, their response in the parametric resonance zone has some undesirable features from the standpoint of filter performance, most notably that their ban...

A rigorous formulation of the parametric yield for very large scale integration (VLSI) designs including the mismatch effect is proposed. The theory has been carried out starting from a general statistical model relating random variations of device parameters to the stochastic behavior of process parameters. The model predicts a dependence of correlation, between devices fabricated in the same ...

Mechanical and electromechanical parametric amplifiers have garnered significant interest, as of late, due to the increased need for low-noise signal amplification in resonant micro/nanosystems. While these devices, which are traditionally designed to operate in a linear range, potentially represent an elegant, on-chip amplification solution, it is not readily apparent that this technical appro...

Developing a computational representation for electromechanical devices that supports conceptual synthesis of complex devices from simpler subsystems both in terms of device behavior and form has been of serious interest. Proposed approaches in literature consider either the synthesis of device behavior or only of shape depending on the limitations of the device model and computational approach...

Developing a computational representation for electro-mechanical devices that supports conceptual synthesis of complex devices from simpler subsystems both in terms of device behavior and form has been of serious interest. Proposed approaches in literature consider either the synthesis of device behavior or only of shape depending on the limitations of the device model and computational approac...

to minimize the risk of embolic events, several protection strategies have been introduced. we have evaluated the short-term outcome of patients who underwent carotid stenting with the routine use of cerebral protection devices. in our center, 36 successful carotid stenting procedures (of 38 attempted) were performed in 37 patients (23 men; age mean [sd] 667 years). cerebral protection involv...

Parametric model-checking allows the use of a single model to obtain properties values from different configurations through an arithmetic formula. Formulas with hundreds of operands and operators can be evaluated at runtime in milliseconds on current computers. Neverthless, those formulas may not scale to devices with limited resources. This work-in-progress addresses this problem by presentin...

The authors present an efficient approach to evaluate the large-signal (LS) parametric sensitivity of active semiconductor devices under quasi-periodic operation through accurate, multidimensional physics-based models. The proposed technique exploits efficient intermediate mathematical models to perform the link between physics-based analysis and circuit-oriented simulations, and only requires ...

Motivated by a telecommunications application where there are few computational constraints, novel nonparametric algorithm, NUNC, is introduced to perform an online detection for changes in the distribution of data. Two variants considered: first, NUNC Local, detects within sliding window. Conversely, Global, compares current window data all historic information seen so far and makes use effici...

We investigate simultaneously the temporal and optical and radio-frequency spectral properties of parametric frequency combs generated in silicon-nitride microresonators and observe that the system undergoes a transition to a mode-locked state. We demonstrate the generation of sub-200-fs pulses at a repetition rate of 99 GHz. Our calculations show that pulse generation in this system is consist...