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We present a silicon nanowire-based field-effect transistor biosensor with Schottky barriers for highly specific and sensitive human α-thrombin detection. The active sensor area is decorated with thrombin-binding aptamers as receptor molecules. Each sensor chip is integrated into a microfluidic device for flow-through measurements. Instantaneous detection is provided by real-time monitoring of FET...
As dimensions shrink with each successive semiconductor technology node, the critical size of defects that can impact yield also shrinks. Monitoring the health of process equipment rigorously and regularly for key sources of contamination must be performed. Comparison of the critical feature size per technology node with the typical defectivity size used for process control shows a widening disparity...
In this paper, we present and examine three generalized mixed-sensitivity control design frameworks for linear time invariant (LTI) plants for trading off properties at distinct multivariable loop-breaking points, while being able to handle a broad class of closed loop (e.g. ℋ(∞, ℋ2, frequency- and time domain) specifications. Multiobjective tradeoff paradigms are developed and analysed for ill-conditioned...
The results of optimization of magnetically sensitive element Field Hall sensor based on the MIS structure formed on a "silicon-on-insulator" (SOI LSF) parameters was presented. Main characteristics of device structure were defined using the results of Silvaco software simulation.
In this paper, a critical-path aware power consumption optimization (CAPCOM) using mixed-VTH cells for low-power SOC designs is presented. Using the critical-path weighted sensitivity as an index for assigning each cell to LVT, HVT or MVT, the CAPCOM provides an effective power saving for a low-volt/ low-power SOC design, as indicated in a 16-bit multiplier circuit with 3811 logic cells using a 90nm...
The sensitivity of a piezoresistive sensor holds great importance in case of bio-medical applications. In this paper, we will discuss about how to enhance the sensitivity of a cantilever based piezoresistive sensor. The methodology behind this enhancement is creating Stress Concentration Region (SCR) on the beam. These SCR's are created by introducing defects on the beam. As the Stress Concentrated...
Results of the magnetosensitive device (a MOSFET Hall sensor on the SOI structure) manufacturing simulation are presented. Electrical features of the device were calculated and the optimization research of the process parameters influence on voltage-current characteristics of the device was made.
Signal Integrity (SI) and Power Integrity (PI) are the most important characteristics for system level design, simulation and analysis of high speed systems. In this paper, HSLINK system is optimized for better SI and PI. Linear models for eye amplitude and jitter are derived by Design of Experiments (DOE). Cost effective solution strategy is also presented using linear models obtained.
A catalytic combustion type methane gas sensor with Pd-Pt/ γ-Al2O3 catalyst working on pulse voltage mode is investigated in this paper, after fabricated by micromachining and sol-gel process on a silicon substrate. In order to achieve low power consumption as well as high sensitivity, pulse voltage was applied to a bridge circuit consisted of the sensor, and the ratio of the gas sensitivity...
Breast cancer is the most commonly diagnosed form of cancer in women accounting for about 30% of all cases. From a computational point of view, breast cancer diagnosis can be viewed as a pattern classification problem. In this paper, we present a cost-sensitive approach to classifying breast cancer data. In particular, we employ a fuzzy rule base that allows incorporation of a misclassification cost...
In this paper, fully coupled electro-thermal simulation of a micro pirani gauge is presented. The simulation was carried out using CFD-ACE+ software, based on Finite Volume Method (FVM) for multi-disciplinary modeling. Temperature coefficient of resistance (TCR) of silicon was taken into account for solving the joule heating and heat transfer equations. The influence of physical parameters on the...
Open loop optimal control problems with linear hybrid (discrete/continuous) systems embedded are often approximated as dynamic optimization problems. These problems are inherently nonconvex. A deterministic global optimization algorithm for linear hybrid systems with varying transition times is developed. First, the control parametrization enhancing transform is used to transform the problem from...
In this paper, the modeling, fabrication and optimization of the proposed nanobiosensor for detection of biomolecules such as DNA hybridization has been studied and different advantages and disadvantages of such a device are discussed. This paper outlines how the modulation of impedance in a novel silicon nanobridge (nanowire) biosensor can be used in characterizing biochemical species such as a antibodies/antigens...
We present a practical, systematical method for the evaluation of the soft error rate (SER) of microelectronic devices. Existing methodologies, practices and tools are integrated in a common approach while highlighting the need for specific data or tools. The showcased method is particularly adapted for evaluating the SER of very complex microelectronic devices by engineers confronted to increasingly...
This paper studies the impact of intra-die random variability on low-power digital circuit designs, specifically, circuit timing failures due to intra-die variability. We identify a new low-Vdd statistical failure mode that is strongly supply-voltage dependent and also introduce a simple yet novel method for quantifying the effects of process variability on digital timing - a delay overlapping stage...
The dramatic increase in leakage current, coupled with the swell in process variability in nano-scaled CMOS technologies, has become a major issue for future IC design. Moreover, due to the spread of leakage power values, leakage variability cannot be neglected anymore. In this work an accurate analytic estimation and modeling methodology has been developed for logic gates leakage under statistical...
The determination of the optimal mode sequence for hybrid systems with autonomous transitions is examined. A class of hybrid systems that exhibit a locally Lipschitz mapping between their parameters and their continuous states is introduced. Lipschitzian optimization methods such as bundle methods are explored for the solution of parametric optimization problems that have this class of hybrid systems...
Subject to certain high frequency attenuation conditions on weighting functions and plants, a suboptimal sensitivity function can be constructed which satisfies certain Lipschitz continuity conditions. The Lipschitz conditions accommodate possible perturbations in system delay terms and those causing plant zeros cross the imaginary axis.
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