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LDS based tools to ease template construction

LDS based tools to ease template construction

2012 International conference on Synthesis, modeling, Analysis and simulation Methods and Applications to Circuit design, SMACD 2012

作者： Unutulmaz, A. Dündar, G. Fernández, F.V. School of Electrical and Electronics Engineering Bogazici University Turkey Institute of Microelectronics of Sevilla CSIC University of Sevilla Spain

ISBN: (纸本)9781467306867

Layout Description Script (LDS) is a domain specific language (DSL) intended to describe analog layouts. This paper introduces an LDS based tool, Capture, and an add-on, LDS Analyzer, for LDS. Capture aims to convert layout images into layout templates. Components of a layout are extracted with this tool and a template is synthesized from the extracted data. LDS Analyzer is an enhanced LDS parser. Analyzer investigates an LDS statement and conducts either simple parsing or enhanced parsing which make use of symbolic variables. © 2012 IEEE.

关键词： Problem oriented languages

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Systematic generation of performance models of reconfigurable analog circuits

Systematic generation of performance models of reconfigurabl...

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2012 International conference on Synthesis, modeling, Analysis and simulation Methods and Applications to Circuit design, SMACD 2012

作者： Velasco-Jiménez, Manuel Castro-López, Rafael Roca, Elisenda Fernández, Francisco Seville Microelectronics Institute IMSE-CNM University of Seville Spain

ISBN: (纸本)9781467306867

In this work, a systematic technique to generate performance models of reconfigurable analog circuits is presented. The performance models are obtained in the form of multi-mode Pareto-optimal fronts (mm-PoFs), a new type of Pareto-optimal front (PoF) that characterizes the set of different performances that reconfigurable circuits can attain. The technique is based on the use of an evolutionary algorithm (EA) that acts as an optimizer, and the simulator HSPICE to measure the circuit performances. The use of this technique will be illustrated for a wireless multistandard problem, where a reconfigurable op-amp will be considered. © 2012 IEEE.

关键词： Evolutionary algorithms

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A formal equivalence checking methodology for Simulink and Register Transfer Level designs

A formal equivalence checking methodology for Simulink and R...

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2012 International conference on Synthesis, modeling, Analysis and simulation Methods and Applications to Circuit design, SMACD 2012

作者： Saglamdemir, Muharrem Orkun Sen, Alper Dündar, Gunhan Department of Electrical and Electronics Engineering Bogazici University Istanbul Turkey Department of Computer Engineering Bogazici University Istanbul Turkey Ericsson Microelectronics Design Center Istanbul Turkey

ISBN: (纸本)9781467306867

Driven by the increase in complexity of design, time-to-market pressure and the need for a high level of collaboration between multiple discipline teams in a project, model based design has become the inevitable choice for IC design projects. High-level models are being substantially used as the reference for implementation of the Register Transfer Level (RTL) counterpart of the designs. In that respect, Matlab/Simulink is one of the adopted high level modeling platforms in the IC design industry. However, checking the formal equivalence of the models with their RTL counterparts is still an area of interest to be investigated. In this study, a methodology addressing that matter is proposed. Simulink models of interest in this paper comprise built-in Simulink blocks, Stateflow blocks modeling the state machines, and user-defined blocks. Proposed methodology utilizes Simulink's Hardware design Language (HDL) Coder and Real Time Workshop (RTW) tools, Mentor Graphics' Catapult, and Synopsys' Formality in the flow. Building of the methodology is explained with a simple example. Then the methodology is applied to multiple designs, including Advanced Encryption Standard (AES) to verify its applicability. © 2012 IEEE.

关键词： Simulink

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An automated layout-aware design flow

An automated layout-aware design flow

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2012 International conference on Synthesis, modeling, Analysis and simulation Methods and Applications to Circuit design, SMACD 2012

作者： Toro-Frías, A. Castro-López, R. Roca, E. Fernández, F.V. Seville Microelectronics Institute CSIC University of Seville Spain

ISBN: (纸本)9781467306867

In analog integrated circuit design, it has always been necessary to improve the designer's productivity. The iterations between the electrical and physical synthesis, required to correct deviations due to parasitics, do degrade that productivity. The inclusion of the physical implementation directly within the electrical synthesis process, would in principle remove many or all of these iterations. This paper presents a fully-automated layout-aware design flow, whose key aspects are: (1) it uses commercially available tools and platforms to attain a highly integrated solution, (2) it provides solutions in the form of Pareto-optimal fronts, which represent the circuit's valuable trade-offs (and can be used in modern design flows), and (3) it allows including the impact of parasitics right into the fronts. This paper details the necessary tools and their integration for automation of the design flow and provides several examples of its use. © 2012 IEEE.

关键词： Automation

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simulation and modeling of nanoscale multiple-gate SOI MOSFETs

Simulation and modeling of nanoscale multiple-gate SOI MOSFE...

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19th International conference on Mixed design of Integrated Circuits and Systems, MIXDES 2012

作者： Iñiguez, Benjamin Ritzenthaler, Romain Lime, François Nae, Bogdan Department of Electronic Electric and Automatic Engineering University Rovira I Virgili Tarragona Spain IMEC Kapeldreef 75 Leuven Belgium

ISBN: (纸本)9788362954438

This paper presents some insights into the modeling of different Multi-Gate SOI MOSFET structures, and in particular Tri-Gate MOSFETs (TGFETs). For long-channel case an electrostatic model can be developed from the solution of the 2D Poisson's equation in the section perpendicular to the channel. allowing it to be incorporated in quasi-2D compact models. For short-channel devices a model can be derived from a 3D electrostatic analysi. The subthreshold current model was successfully compared with experimental measurements, in terms of subthrehold slope, threshold voltage and DIBL. © 2012 Dept of microelectronics.

关键词： Poisson equation

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Characterization of SAW filters based on GaPO₄

Characterization of SAW filters based on GaPO<sub>4</sub>

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6th conference on Advanced Topics in Optoelectronics, microelectronics, and Nanotechnologies (ATOM-N)

作者： Schiopu, Paul Manea, Adrian Grosu, Neculai Craciun, Anca-Ileana Craciun, Alexandru Univ Politehn Bucuresti Optoelect Res Ctr Bucharest UPB CCO Bucharest 060042 Romania

ISBN: (纸本)9780819490896

The results of research into Surface Acoustic Wave - SAW - filters have been recognized for their efficiency and versatility in the electrical signals processing (1,3). Gallium Orthophosphate (GaPO4) is a relative new material, which has a long term high stability and, moreover, has an excellent behavior with temperature variation (2,3). The characterization of SAW filters based on GaPO4 is uses the comparative analysis of simulated results of parameters, with different software programs, which were developed for designing of these filters. simulation covers the determination and analysis of the characteristics of this filter, namely, mechanical parameters (constructive) and operational parameters in comparison with the design data. In order to obtain the parameters of SAW filters we have used the algorithms and software for modelling, simulation. The paper presents several versions of software programs, in Matlab and Microsoft Visual C#, for the design of GaPO4 SAW filters and their interpretation. These modeling, simulations were performed successively by each program, until we set the parameters of SAW filter. By the comparison of the data obtained with each program, we have improved the constructive dimensions of fingers, we obtained the desired parameters. With this data, we realised SAW filters based on GaPO4, and with the help of the Network Analyzer we measured parameters of the filter, which are presented in the paper(2,10).

关键词： Gallium Orthophosphate SAW filter simulation comparative analysis software

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2012 8th International Caribbean conference on Devices, Circuits and Systems, ICCDCS 2012

2012 8th International Caribbean Conference on Devices, Circ...

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2012 8th International Caribbean conference on Devices, Circuits and Systems, ICCDCS 2012

ISBN: (纸本)9781457711169

The proceedings contain 74 papers. The topics discussed include: modeling and SPICE simulation of CdS-pentacene hybrid CMOS TFTs;contact technology schemes for advanced Ge and III-V CMOS technologies;a physics based compact model of gate capacitance in AlGaN/GaN HEMT devices;structural studies of cubic GaN films grown by MOCVD;high-efficiency filterless class D amplifier with peak detector;drain current model for junctionless nanowire transistors;new trends in microelectronics: towards an ultimate memory concept;on the implementation of a parametric oscillator in analog applications;an on-chip calibration technique for reducing temperature and offset errors in a programmable voltage reference;ultra-low-power analog and digital circuits and microsystems using disruptive ultra-low-leakage design techniques;a 2.4GHz transceiver for wireless sensor network;and compact unified modeling of multigate MOSFETs based on isomorphic modeling functions.

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Physical insight into electromagnetic kinetic energy transducers and appropriate energy conditioning for enhanced micro energy harvesting

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Journal of Physics: conference Series 2013年第1期476卷

作者： Joachim Leicht Thorsten Hehn Dominic Maurath Christian Moranz Yiannos Manoli Fritz Huettinger Chair of Microelectronics Department of Microsystems Engineering – IMTEK University of Freiburg Germany HSG-IMIT – Institute of Micromachining and Information Technology Villingen-Schwenningen Germany

This paper proposes a new method for modeling electromagnetic kinetic energy transducers and gives analytical expressions that enable the design of efficient energy conditioning circuitry. The introduced transducer modeling approach achieves high accuracy without requiring a large set of parameters. The presented transducer characterization allows physical insight into fully assembled and packaged transducers in order to extract the required transducer model parameters without knowledge of the individual components. Moreover, the electromagnetic coupling, the parasitic damping, and the optimal load can be modeled with a dependence on the external excitation. Precise co-simulation with CMOS integrated energy conditioning circuitry is possible implementing this model in a circuit simulator.

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Schematic driven MEMS design

Schematic driven MEMS design

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International conference on Synthesis, modeling, Analysis and simulation Methods and Applications to Circuit design (SMACD)

作者： Mirco Meiners Ralf Sommer Helmut Graeb Automotive Electronics Robert Bosch GmbH Reutlingen Germany Institute for Microelectronics Mechatronic Systems GmbH Ilmenau Germany Institute for Electronic Design Automation Technische Universität München Munich Germany

Microelectromechanical systems are important components for so-called cyber-physical systems. If a seamless MEMS design methodology for monolithic and hybrid systems overcomes current tool and workflow discrepancies in MEMS and IC design flows, further capabilities can be made available. This paper gives an overview of requirements on and solution approaches for an integrated MEMS/ASIC design flow.

关键词： Micromechanical devices Application specific integrated circuits Integrated circuit modeling Solid modeling Analytical models Layout

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Analysis of microelectronic and photonic structure in three dimensions

Analysis of microelectronic and photonic structure in three ...

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World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual conference

作者： Nguyen, Nghia Dai 101 Innovation Blvd. University Park PA 16802 United States

ISBN: (纸本)9781622760923

Nowadays, computer modeling provides a fantastic tool to decrease cost, optimize design, and reduce turnaround times of any product. Analysis of microelectronic and photonic structure - 1D (AMPS-1D) presents one of many attempts to unite numerical modeling and the physics of photovoltaic (PV) cell into one software package where the PV device model appears as a planar, layer-by-layer cell. This idealized dimension-lacking structure is of limited utility for advancing the new 3-D geometries being introduced in solar cell architectures. Thus, there is a need to extend AMPS to 3-D, and a unit cell approach allows modeling of a wide variety of repetitive structures while utilizing the minimal computing power. The future development of AMPS-3D may be divided into two main parts. The optical simulation will be done by numerically solving the 3-D Maxwell's equations. For transport in a semiconductor device, the Poisson's equation, and the continuity equations of electron and hole current density can be self-consistently determined by using the drift and diffusion formulation. Recombination mechanisms such as band-to-band, Shockley-Read-Hall, and Auger play significant roles in the second part. The computed solutions can be processed into photovoltaic action results.

关键词： microelectronics

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