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With the growing number of process variation (PV) sources in deeply nano-scaled technologies, parameterized device and circuit modeling is becoming very important for chip design and verification. However, the high dimensionality of parameter space, for PV analysis, is a serious modeling challenge for emerging VLSI technologies. These parameters correspond to various interdie and intradie variations,...
With the aggressive scaling of integrated circuit technology, analog performance modeling is facing enormous challenges due to high-dimensional variation space and expensive transistor-level simulation. In this paper, we propose a kernel density based sparse regression algorithm (KDSR) to accurately fit analog performance models where the modeling error is not simply Gaussian due to strong nonlinearity...
Power integrity (PI) is among the main concerns in the design process of multilayer packages and printed circuit boards (PCBs). Based on Transmission Matrix Method (TMM), the PI performance of a Ball grid array (BGA) package mounted on a PCB is investigated in this paper. The power/ground planes and the power/ground balls on a PCB and package are entirely equivalent to distributed RLGC circuits model...
Printed circuit boards (PCB) are found in almost all electronic devices. During manufacturing and field operation, these PCBs are subjected to different loads, which cause stresses and deformations. Excessive stresses and deformations of PCB can lead to system failure. Thermo mechanical simulation helps to predict stress distribution in manufacturing and operational condition. PCB object consists...
With the recent advances in information networks, the problem of identifying group structure or communities has received a significant amount of attention. Most of the existing principles of community detection or clustering mainly focus on either the topological structure of a network or the node attributes separately, while both of the two aspects provide valuable information to characterize the...
In this work we investigate the accuracy criterion of the electron device models and give practical circuit examples. The analysis and design of integrated circuits depend heavily on the utilization of suitable models for integrated-circuit components. Since any analysis is only as accurate as the model used, it is essential that the circuit designer have a thorough understanding of the origin of...
Simulation is a fundamental tool for the design of next generation power systems. At the same time, existing simulation methods are inadequate to tackle the complexity of such systems. In this paper we present a simulation approach based on the combination of Quantized Discrete Event System Specification (QDEVS) and the Latency Insertion Method (LIM). The combination of these two approaches leads...
With the rapid growth of usage of social network, the patterns, the scales, and the rate of information exchange have brought profound impacts on research and practice in finance. One important topic is the stock market efficiency analysis. Traditional schemes in finance focus on identifying significant abnormal returns triggered by important events. However, those events are merely identified by...
Analysis method and computational solutions for thermo-and electrostatics effects of slender bodies often using multi-scale modeling, molecular dynamic simulation and data visualization technique. In the present work, we conduct a review of applying analytical methods such as BEM and FEM and molecular dynamics and computational methodologies to model the thermal and electrostatics effects on the slender...
The objective of this work is to investigate high-resolution and high-performance computational methods for the first-principles analysis of in-situ product-level integrated circuit (IC) packages. The novelties and key technical approaches of the proposed work include: (i) a scalable geometry-based domain decomposition (DD) method to conquer the geometric complexity of physical domain, which leads...
A large signal S-parameter model for a power BAW filter built with AlN - based resonators is determined starting from the measured data obtained using connection wires at the filter input and output. A procedure aimed to obtain the main characteristics of the filter without the connection wires is proposed. These characteristics are: the frequency characteristic S21(f) and the frequency dependence...
The paper studied the optimal approach to the implementation of models of quantum calculators, perform differentiation characteristics of quantum models of calculators to the appropriate functional groups included in the models. Detected characteristics of the models of quantum calculators and expected these characteristics software functionality of the model. Mathematical models and their advantages...
A mixed modeling technique combining an electromagnetic (EM) modeling with a wave digital approach is employed here to get the scattering parameters of microstrip chamfered bend structures. This paper provides a two-port equivalent wave digital network model of microstrip right-angled bend configuration. The effects of discontinuity are more accurately modeled here and taken into account with the...
To model the electromagnetic emissions of integrated circuits, a full chip simulation is the most accurate method. Full chip simulations are very complex, time consuming, and do not protect the intellectual property. Therefore, other models were developed that are fast, protect confidential information and have a lower complexity. In this paper, we give a state-of-the-art overview of these models.
The author's career has coincided with the development of numerical simulation into an essential component of semiconductor device technology research and development. We now have a sophisticated suite of simulation capabilities along with new challenges for 21st Century electronics. This talk presents a short history of the field and a description of the current state of the art, but it concentrates...
Model order reduction (MOR) has been an emergent field of research in control theory and numerical analysis. This paper presents a Padé approximation based technique i.e. matching of both time moments and Markov parameters for order reduction of single input single output (SISO) system.
Memristor being a fourth fundamental passive electrical circuit element in nanoscale technology has gained a great interest in the new era of semiconductor technology. The memristor with its special property of nonvolatility, low power consumption, small size and improved scalability has captured interest in many applications from digital logic circuits to neuromorphic computing. This paper will discuss...
Over the past years, different approaches have been proposed for circuital modeling photovoltaic modules. Most of these approaches introduce simplifications and/or approximations techniques or exploit inaccurate data interpolated from the plots representing panel characteristic curves: this in order to overcome the treatment of transcendental equations or to add points for numerical fitting. Unfortunately,...
This paper presents a systematic hybrid modeling method for electromagnetic susceptibility analysis of electronics system in the presence of ambient electromagnetic interference (EMI). The electronics equipment/system comprises of sensitive data nets, high-speed components, shielding enclosures, and cables connected to the system. Due to complex structure and multi-scales geometry, a systematic hybrid...
Interconnect effects are one of the dominant factors affecting performance and design of high-speed networks. These effects if not predicted at early stages of the design cycle could lead to costly design iterations. Evaluation of the effects of interconnects requires solving large sets of equations, the direct solution of which is computationally expensive. The need to improve this computational...
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