Fast Parasitic-aware Synthesis Methodology for High Performance Analog and RF Circuits

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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (995 download)

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Book Synopsis Fast Parasitic-aware Synthesis Methodology for High Performance Analog and RF Circuits by : Abdullah Al Iftekhar Ahmed

Download or read book Fast Parasitic-aware Synthesis Methodology for High Performance Analog and RF Circuits written by Abdullah Al Iftekhar Ahmed and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Inductive and Capacitive Aware Methodologies for Physical and Circuit Synthesis of High-speed Digital and RF Circuits

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ISBN 13 :
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Book Synopsis Inductive and Capacitive Aware Methodologies for Physical and Circuit Synthesis of High-speed Digital and RF Circuits by :

Download or read book Inductive and Capacitive Aware Methodologies for Physical and Circuit Synthesis of High-speed Digital and RF Circuits written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer-aided design in VLSI is a continuously evolving subject, with new algorithms and solutions constantly modifying the established norms in order to accommodate efficient strategies to make CAD principles strong at an early phase of design abstraction. The same principle also applies to the routing phase in the physical design of VLSI circuits. There have been several attempts to innovate novel routing methodologies and make it parasitic aware. This awareness in the routing paradigm is important in high-frequency designs, since inductive and capacitive crosstalk that often proved to be crucial in the performance of digital and analog circuits were ignored in previous design attempts. We added an important flavor to make the interconnect-centric routing more meaningful. Realizing the importance of self and mutual inductance and coupling capacitance between neighboring wires, we introduced a routing approach based on higher order moment metrics, which captures the inductive and capacitive parasitics to form a cost function comprising of a mathematical expression. Minimizing the cost allowed us not only to obtain routes that are inductive and capacitive aware but also that produced the least ringing and delay during signal propagation. To make the route cost function even more robust and efficient, we introduced a concept of parasitic transformation on the universal RLC template required by the moment-driven cost function. Besides making the routing technique parasitic-aware, we also made the routing methodology suited towards faster convergence, in line with the requirement of an efficient CAD tool. A constraint-driven non-linear algorithm that satisfies the design rule requirements in addition to minimizing the moment-driven cost function using non-linear algorithm, has been developed to serve this purpose. Layout inclusive synthesis strategies have been present in the domain of Analog and RF synthesis for quite some time. Introducing capacitive and on-chip inductor parasitics helped to bring the parasitic awareness during synthesis and prevented the expensive re-design loop between fabrication and design specification from happening. In order to give the synthesis technique a new dimension and a more refined approach, we implemented a quasi-static extraction strategy in order to extract the resistive, self and mutual inductive parasitics of on-chip inductors and interconnects, within the synthesis flow. Previous attempts, which were ignorant of complete self and mutual inductive and capacitive parasitics of on-chip inductors and interconnects, benefited from this full parasitic extraction technique, thereby giving a fruitful closure to RF circuit synthesis by making the design layout-aware. We also extended the moment-driven routing methodology to the RF circuit synthesis domain, in order to make the routing process at the layout inclusion stage intelligent in terms of parasitic awareness, and efficient, by not transferring the burden of bad routing decisions to the synthesis engine. Coupled with this idea integration, we also included a proven fast and accurate parasitic device modeling strategy to obviate complicated layout generation and extraction steps required in the layout-inclusive RF circuit synthesis. The device parasitic extraction using this technique is based on multivariate interpolation strategy and led to faster convergence time for RF LNA synthesis.

Algorithms for Layout-aware and Performance Model Driven Synthesis of Analog Circuits

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ISBN 13 :
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Book Synopsis Algorithms for Layout-aware and Performance Model Driven Synthesis of Analog Circuits by :

Download or read book Algorithms for Layout-aware and Performance Model Driven Synthesis of Analog Circuits written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the ever increasing complexity of integrated circuits and constantly shrinking device sizes, the need to develop entire dystems on chip (SoC) has received a significant momentum. With this need, comes the responsibility of bringing about mature computer-aided design (CAD) techniques to handle the complexity of designing such systems. Although mature commercial techniques exist for designing the digital components in a system, design automation for the irreplaceable analog and radio-frequency (RF) circuits in a system remains incipient. Circuit sizing is one of the most important and challenging constituents of any analog design process. Given a set of high-level specifications and a circuit topology, sizing aims to determine the device dimensions and biasing information in order to meet the desired specifications. In this dissertation, we address two major problems ailing the sizing process. One of the most important challenges in analog synthesis is to design a circuit which meets the input specifications at the post-layout stage. The other problem we seek to address in this dissertation is the enormous time spent in sizing due to the overhead of running thousands of simulations for performance estimation. Analog and RF circuits are extremely sensitive to layout parasitics. This extreme dependence of the behavior of analog circuits, on layout-induced parasitics, is responsible for several silicon runs before a functional chip can be designed. We propose two techniques to introduce layout awareness during circuit sizing. The first approach is based on developing fast and accurate models of the layout parasitics. The parasitic capacitance models are used inside a circuit sizing framework to estimate the layout parasitics and account for them in the performance evaluation process. This approach relies on procedural layout generators (PLGs) for developing the parasitic models. The second approach proposed for layout-aware design draws a similarity between layout parasitics and process variables in a yield optimization problem. A two-step approach is proposed for identifying the worst case parasitic corners and for sizing in presence of these parasitics. A parasitic robust design is sought for which passes the post-layout validation test. Circuit sizing primarily comprises of two components: a search engine and a performance estimator. Stochastic combinatorial optimization techniques are used for exploring the design space. For each candidate design explored by the search engine, the circuit performance is estimated. Typically, the performance estimation time dominates the overall synthesis time. Most commercial approaches deploy a simulator-in-loop approach to the sizing problem due to the high accuracy desired from the estimation process. We propose two techniques for replacing the simulator with accurate and efficient performance models. Since the performance models allow a very quick evaluation of the circuit performance, their use helps in drastically reducing the time complexity of sizing. Unlike the existing macro-model driven sizing techniques, the proposed approaches guarantee to obtain accurate simulator validated design solutions. We propose a unified system which aims to resolve both the problems of computational complexity of performance estimation and performance closure at the layout stage in the same flow. The proposed system combines the ideas of parasitic modeling, design optimization in presence of worst case parasitics corners and performance macromodeling put forth in this dissertation to create high quality designs efficiently.

Automated Layout-inclusive Synthesis of Analog Circuits Using Symbolic Performance Models

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ISBN 13 :
Total Pages : pages
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Book Synopsis Automated Layout-inclusive Synthesis of Analog Circuits Using Symbolic Performance Models by :

Download or read book Automated Layout-inclusive Synthesis of Analog Circuits Using Symbolic Performance Models written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A key task in the automated design of analog/RF circuits is circuit sizing, a process that involves assigning numerical values to unknown circuit parameters of a fixed topology, while being subjected to a set of performance constraints. Over the years, the terms sizing and synthesis have been used interchangeably, and have become synonymous in the analog domain. Mature tools for the synthesis of digital circuits are abundant, but the market for analog synthesis tools is still growing and very few commercial products exist. Several techniques have been developed in the past for analog synthesis, ranging from knowledge-based methods to techniques using numerical simulation. A frequently used technique involves an iterative stochastic search, which uses numerical simulations at every probable design point, in order to obtain the performance metrics. Expensive computations and parasitics unawareness of this traditional method necessitates a scheme which can produce fast layout aware designs. In this dissertation a new synthesis methodology, which uses parameterized layout generators and symbolic performance models (SPMs) inside the synthesis loop, has been developed to overcome the deficiencies of the previous circuit sizing method. This layout-inclusive (layout-in-loop) approach uses efficient parameterized procedural layout generators, obtained using the module specification language (MSL) system, for speedy layout instantiation. Fast performance estimation is achieved by using pre-compiled SPMs, which are symbolic representation of circuit performances, obtained using symbolic analysis. The transfer functions of SPMs are stored as efficient symbolic graphs called element-coefficient diagrams (ECDs). Techniques to include layout geometry effects in the SPMs have also been developed. This method is used for the synthesis of op-amps and filters. The method proposed above for analog circuits is then applied to the synthesis of an RF low-noise amplifier (LNA). This method also uses symbolic performance models (SPMs), and parameterized layout generator along with high-frequency extraction techniques in the synthesis loop. SPMs for noise figure and distortion parameters are developed using repetitive and weakly nonlinear symbolic analysis and are stored as pre-compiled ECDs. Full parasitic extraction is done by using multiple extractors. Quasi-static extraction is used to obtain the critical parasitic effects of interconnects and on-chip inductors. Further in the dissertation, efforts are made to overcome the shortcomings of the proposed method. The first limitation is the size of circuits that can be synthesized. It arises because of the limit on the size of ECD-code that can be compiled by a standard GNU C++ compiler. To overcome this bottleneck, a new comprehensive method and framework for exact symbolic analysis of large analog circuits is developed. The method is based on the concepts of hierarchical circuit decomposition, subcircuit symbolic analysis and transfer function synthesis. Node tearing methods have been used for decomposition and element-coefficient diagrams (ECD) based method is used for symbolic analysis of subcircuits. One of the key contributions of this work is a generalized methodology for transfer function synthesis, encompassing all interconnection templates for any two subcircuits. The method leads to the development of an easily automatable and efficient algorithm for generation of symbolic transfer function of large circuits. The hierarchical technique, developed in this work, is then used for layout-inclusive synthesis of large analog circuits. Techniques have been developed to generate the list and interconnection of subcircuits which undergo hierarchical symbolic analysis. A circuit is decomposed into common building blocks of analog circuits, for which netlists are obtained by an extraction of corresponding layout modules. The interconnection parasitics may or may not exist in the module netlists and therefore they may form subcircuits of their own. The other shortcoming of this work is that of time during performance estimation is spent on operating point analysis using SPICE, a numerical simulator. To remove this dependence on numerical simulation and further speedup synthesis, we have developed a modified gm/ID method and used it for synthesis of analog circuits. EKV MOSFET model equations for all small-signal parameters have been extracted, and the conditions for a transistor to be in saturation, have been derived.

Practical Synthesis of High-Performance Analog Circuits

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Publisher : Springer Science & Business Media
ISBN 13 : 1461555655
Total Pages : 308 pages
Book Rating : 4.4/5 (615 download)

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Book Synopsis Practical Synthesis of High-Performance Analog Circuits by : Emil S. Ochotta

Download or read book Practical Synthesis of High-Performance Analog Circuits written by Emil S. Ochotta and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: Practical Synthesis of High-Performance Analog Circuits presents a technique for automating the design of analog circuits. Market competition and the astounding pace of technological innovation exert tremendous pressure on circuit design engineers to turn ideas into products quickly and get them to market. In digital Application Specific Integrated Circuit (ASIC) design, computer aided design (CAD) tools have substantially eased this pressure by automating many of the laborious steps in the design process, thereby allowing the designer to maximise his design expertise. But the world is not solely digital. Cellular telephones, magnetic disk drives, neural networks and speech recognition systems are a few of the recent technological innovations that rely on a core of analog circuitry and exploit the density and performance of mixed analog/digital ASICs. To maximize profit, these mixed-signal ASICs must also make it to market as quickly as possible. However, although the engineer working on the digital portion of the ASIC can rely on sophisticated CAD tools to automate much of the design process, there is little help for the engineer working on the analog portion of the chip. With the exception of simulators to verify the circuit design when it is complete, there are almost no general purpose CAD tools that an analog design engineer can take advantage of to automate the analog design flow and reduce his time to market. Practical Synthesis of High-Performance Analog Circuits presents a new variation-tolerant analog synthesis strategy that is a significant step towards ending the wait for a practical analog synthesis tool. A new synthesis strategy is presented that can fully automate the path from a circuit topology and performance specifications to a sized variation-tolerant circuit schematic. This strategy relies on asymptotic waveform evaluation to predict circuit performance and simulated annealing to solve a novel non-linear infinite programming optimization formulation of the circuit synthesis problem via a sequence of smaller optimization problems. Practical Synthesis of High-Performance Analog Circuits will be of interest to analog circuit designers, CAD/EDA industry professionals, academics and students.

High-Level Modeling and Synthesis of Analog Integrated Systems

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Publisher : Springer Science & Business Media
ISBN 13 : 1402068026
Total Pages : 287 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis High-Level Modeling and Synthesis of Analog Integrated Systems by : Ewout S. J. Martens

Download or read book High-Level Modeling and Synthesis of Analog Integrated Systems written by Ewout S. J. Martens and published by Springer Science & Business Media. This book was released on 2008-01-03 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Various approaches for finding optimal values for the parameters of analog cells have made their entrance in commercial applications. However, a larger impact on the performance is expected if tools are developed which operate on a higher abstraction level and consider multiple architectural choices to realize a particular functionality. This book examines the opportunities, conditions, problems, solutions and systematic methodologies for this new generation of analog CAD tools.

Layout-Aware Analog Synthesis Methodology

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Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783844304794
Total Pages : 176 pages
Book Rating : 4.3/5 (47 download)

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Book Synopsis Layout-Aware Analog Synthesis Methodology by : Raoul Badaoui

Download or read book Layout-Aware Analog Synthesis Methodology written by Raoul Badaoui and published by LAP Lambert Academic Publishing. This book was released on 2011-03 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Layout-induced parasitics have significant effects on the behavior of circuits in general and the performance of high-frequency analog ones in particular. To achieve parasite-inclusive performance-closure, layout-aware circuit synthesis methodologies are beginning to emerge. In layout-in-the-loop synthesis methodologies, performance analysis is based on the generation of a concrete layout for the explored circuit sizes. A parasite-inclusive circuit is extracted from the layout using a standard extractor and is analyzed using a simulator to determine whether the required constraints are met; this is time consuming. Various approaches of estimating parasitics lack the correctness that would only come from examining the layout itself. The proposed approach tries to include the exactness of the layout to be generated without actually generating it. It relies on using pre-generated structures for the specified unsized circuit; these structures are generated pre-synthesis and contain the information that a layout would have provided to a synthesis process if it was to be generated. This information contains extraction specifics for modules, their location and routing characteristics.

Automated Hierarchical Synthesis of Radio-Frequency Integrated Circuits and Systems

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Publisher : Springer Nature
ISBN 13 : 3030472477
Total Pages : 198 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Automated Hierarchical Synthesis of Radio-Frequency Integrated Circuits and Systems by : Fábio Passos

Download or read book Automated Hierarchical Synthesis of Radio-Frequency Integrated Circuits and Systems written by Fábio Passos and published by Springer Nature. This book was released on 2020-07-11 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes a new design methodology that allows optimization-based synthesis of RF systems in a hierarchical multilevel approach, in which the system is designed in a bottom-up fashion, from the device level up to the (sub)system level. At each level of the design hierarchy, the authors discuss methods that increase the design robustness and increase the accuracy and efficiency of the simulations. The methodology described enables circuit sizing and layout in a complete and automated integrated manner, achieving optimized designs in significantly less time than with traditional approaches.

Analog/RF and Mixed-Signal Circuit Systematic Design

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Publisher : Springer Science & Business Media
ISBN 13 : 3642363296
Total Pages : 380 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Analog/RF and Mixed-Signal Circuit Systematic Design by : Mourad Fakhfakh

Download or read book Analog/RF and Mixed-Signal Circuit Systematic Design written by Mourad Fakhfakh and published by Springer Science & Business Media. This book was released on 2013-02-03 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the fact that in the digital domain, designers can take full benefits of IPs and design automation tools to synthesize and design very complex systems, the analog designers’ task is still considered as a ‘handcraft’, cumbersome and very time consuming process. Thus, tremendous efforts are being deployed to develop new design methodologies in the analog/RF and mixed-signal domains. This book collects 16 state-of-the-art contributions devoted to the topic of systematic design of analog, RF and mixed signal circuits. Divided in the two parts Methodologies and Techniques recent theories, synthesis techniques and design methodologies, as well as new sizing approaches in the field of robust analog and mixed signal design automation are presented for researchers and R/D engineers.

Performance-driven Parasitic-aware Layout Retargeting and Optimization for Analog and RF Integrated Circuits

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ISBN 13 :
Total Pages : 288 pages
Book Rating : 4.:/5 (767 download)

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Book Synopsis Performance-driven Parasitic-aware Layout Retargeting and Optimization for Analog and RF Integrated Circuits by : Zheng Liu

Download or read book Performance-driven Parasitic-aware Layout Retargeting and Optimization for Analog and RF Integrated Circuits written by Zheng Liu and published by . This book was released on 2010 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Speeding-Up Radio-Frequency Integrated Circuit Sizing with Neural Networks

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Publisher : Springer Nature
ISBN 13 : 3031250990
Total Pages : 115 pages
Book Rating : 4.0/5 (312 download)

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Book Synopsis Speeding-Up Radio-Frequency Integrated Circuit Sizing with Neural Networks by : João L. C. P. Domingues

Download or read book Speeding-Up Radio-Frequency Integrated Circuit Sizing with Neural Networks written by João L. C. P. Domingues and published by Springer Nature. This book was released on 2023-03-20 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, innovative research using artificial neural networks (ANNs) is conducted to automate the sizing task of RF IC design, which is used in two different steps of the automatic design process. The advances in telecommunications, such as the 5th generation broadband or 5G for short, open doors to advances in areas such as health care, education, resource management, transportation, agriculture and many other areas. Consequently, there is high pressure in today’s market for significant communication rates, extensive bandwidths and ultralow-power consumption. This is where radiofrequency (RF) integrated circuits (ICs) come in hand, playing a crucial role. This demand stresses out the problem which resides in the remarkable difficulty of RF IC design in deep nanometric integration technologies due to their high complexity and stringent performances. Given the economic pressure for high quality yet cheap electronics and challenging time-to-market constraints, there is an urgent need for electronic design automation (EDA) tools to increase the RF designers’ productivity and improve the quality of resulting ICs. In the last years, the automatic sizing of RF IC blocks in deep nanometer technologies has moved toward process, voltage and temperature (PVT)-inclusive optimizations to ensure their robustness. Each sizing solution is exhaustively simulated in a set of PVT corners, thus pushing modern workstations’ capabilities to their limits. Standard ANNs applications usually exploit the model’s capability of describing a complex, harder to describe, relation between input and target data. For that purpose, ANNs are a mechanism to bypass the process of describing the complex underlying relations between data by feeding it a significant number of previously acquired input/output data pairs that the model attempts to copy. Here, and firstly, the ANNs disrupt from the most recent trials of replacing the simulator in the simulation-based sizing with a machine/deep learning model, by proposing two different ANNs, the first classifies the convergence of the circuit for nominal and PVT corners, and the second predicts the oscillating frequencies for each case. The convergence classifier (CCANN) and frequency guess predictor (FGPANN) are seamlessly integrated into the simulation-based sizing loop, accelerating the overall optimization process. Secondly, a PVT regressor that inputs the circuit’s sizing and the nominal performances to estimate the PVT corner performances via multiple parallel artificial neural networks is proposed. Two control phases prevent the optimization process from being misled by inaccurate performance estimates. As such, this book details the optimal description of the input/output data relation that should be fulfilled. The developed description is mainly reflected in two of the system’s characteristics, the shape of the input data and its incorporation in the sizing optimization loop. An optimal description of these components should be such that the model should produce output data that fulfills the desired relation for the given training data once fully trained. Additionally, the model should be capable of efficiently generalizing the acquired knowledge in newer examples, i.e., never-seen input circuit topologies.

Yield-Aware Analog IC Design and Optimization in Nanometer-scale Technologies

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Publisher : Springer Nature
ISBN 13 : 3030415368
Total Pages : 254 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Yield-Aware Analog IC Design and Optimization in Nanometer-scale Technologies by : António Manuel Lourenço Canelas

Download or read book Yield-Aware Analog IC Design and Optimization in Nanometer-scale Technologies written by António Manuel Lourenço Canelas and published by Springer Nature. This book was released on 2020-03-20 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a new methodology with reduced time impact to address the problem of analog integrated circuit (IC) yield estimation by means of Monte Carlo (MC) analysis, inside an optimization loop of a population-based algorithm. The low time impact on the overall optimization processes enables IC designers to perform yield optimization with the most accurate yield estimation method, MC simulations using foundry statistical device models considering local and global variations. The methodology described by the authors delivers on average a reduction of 89% in the total number of MC simulations, when compared to the exhaustive MC analysis over the full population. In addition to describing a newly developed yield estimation technique, the authors also provide detailed background on automatic analog IC sizing and optimization.

Approaches for Parasitic-inclusive Symbolic Circuit Representation and Extraction for Synthesis

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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (63 download)

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Book Synopsis Approaches for Parasitic-inclusive Symbolic Circuit Representation and Extraction for Synthesis by :

Download or read book Approaches for Parasitic-inclusive Symbolic Circuit Representation and Extraction for Synthesis written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Layout-induced parasitics have significant effects on the behavior of circuits in general and the performance of high-frequency analog ones in particular. To achieve parasite-inclusive performance-closure, layout-aware circuit synthesis methodologies are beginning to emerge. In layout-in-the-loop synthesis methodologies, performance analysis is based on the generation of a concrete layout for the explored circuit sizes. A parasite-inclusive circuit is extracted from the layout using a standard extractor and is analyzed using a simulator to determine whether the required constraints are met. The purpose of layout generation during the synthesis process is solely to determine the layout-induced effects in terms of device and interconnect parasites in the extracted circuit in order to perform accurate, layout-aware performance analysis. If the parasites could be estimated or determined otherwise, there would be no need for layout generation. Various approaches of estimating parasitics lack the correctness that would only come from examining the layout itself. The proposed approach tries to include the exactness of the layout to be generated without actually generating it. It relies on using pre-generated structures for the specified un-sized circuit; these structures are generated before synthesis, they contain the information that a layout would have provided to a synthesis process if it was to be generated. This information contains extraction specifics for modules, location of modules and routing characteristics. Pre-Layout Extraction: The concept of Pre-Layout Extraction shall be used to cover the extraction specific information of modules present in the circuit. It is achieved using a high-level language MSL (Module Specification Language) for the specification of parameterized, topology-specific circuit extractors. Upon compilation, the MSL program yields an executable module which generates the extracted circuit containing parasitics, passive and active devices when given specific sizes. This is done without ever generating a layout. Multi-Placement Structures: For the placement specification of the layout, Multi-Placement Structures shall be used. The proposed approach aims at retaining the benefits of both optimization-based techniques and layout templates techniques: a fast instantiation time of layout for layout-inclusive synthesis and various placement possibilities for various input sizes. (No restriction to a single, pre-defined template). It consists of a one-time generation of a multi-placement structure for a specific unsized circuit. The obtained structure would be used in a layout-inclusive synthesis process in the following manner: It is provided with numerical sizes from a sizing algorithm tool and returns a specific floor-plan for the circuit. For different sizes given, the aim is to have the best floor-plan returned depending on the specified sizes. Multi-Variant Routing: The remaining part of a layout description known as routing shall be handled using the proposed idea of Multi-Variant Routing. This method follows the same line of thought as its corresponding one in the placement field. It consists of a one-time generation of a Multi-Variant Routing Structure that would instantiate distinct routing schemes for distinct specified sizes and modules positions. Depending on the size of the modules in the circuit, and on their locations instantiated using the Multi-Placement Structure, the Multi-Variant Routing Structure shall be able to produce the most efficient routing scheme for the proposed circuit. Its power relies on a one-time intelligent search accomplished before synthesis, while building the structure. Depending on the locations and the sizes of the modules in the circuit, the nets in the circuit are attached to a multiple-possibility path that is controlled by the dynamic feature of changin channels and blocks' sizes. The combination of these three described novel methods of layout approaches can be very beneficial to the synthesis of circuits and specially analog ones. It is expected to introduce a speedup factor varying from 4 to 5 with comparison to layout-inclusive synthesis approaches while having the quality of layout exploration not found in template-based approaches.

Automated Design of Analog and High-frequency Circuits

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Author :
Publisher : Springer
ISBN 13 : 3642391621
Total Pages : 243 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Automated Design of Analog and High-frequency Circuits by : Bo Liu

Download or read book Automated Design of Analog and High-frequency Circuits written by Bo Liu and published by Springer. This book was released on 2013-08-16 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computational intelligence techniques are becoming more and more important for automated problem solving nowadays. Due to the growing complexity of industrial applications and the increasingly tight time-to-market requirements, the time available for thorough problem analysis and development of tailored solution methods is decreasing. There is no doubt that this trend will continue in the foreseeable future. Hence, it is not surprising that robust and general automated problem solving methods with satisfactory performance are needed.

Automatic Analog IC Sizing and Optimization Constrained with PVT Corners and Layout Effects

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Publisher : Springer
ISBN 13 : 3319420372
Total Pages : 199 pages
Book Rating : 4.3/5 (194 download)

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Book Synopsis Automatic Analog IC Sizing and Optimization Constrained with PVT Corners and Layout Effects by : Nuno Lourenço

Download or read book Automatic Analog IC Sizing and Optimization Constrained with PVT Corners and Layout Effects written by Nuno Lourenço and published by Springer. This book was released on 2016-07-29 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to a variety of tools for automatic analog integrated circuit (IC) sizing and optimization. The authors provide a historical perspective on the early methods proposed to tackle automatic analog circuit sizing, with emphasis on the methodologies to size and optimize the circuit, and on the methodologies to estimate the circuit’s performance. The discussion also includes robust circuit design and optimization and the most recent advances in layout-aware analog sizing approaches. The authors describe a methodology for an automatic flow for analog IC design, including details of the inputs and interfaces, multi-objective optimization techniques, and the enhancements made in the base implementation by using machine leaning techniques. The Gradient model is discussed in detail, along with the methods to include layout effects in the circuit sizing. The concepts and algorithms of all the modules are thoroughly described, enabling readers to reproduce the methodologies, improve the quality of their designs, or use them as starting point for a new tool. An extensive set of application examples is included to demonstrate the capabilities and features of the methodologies described.

Proceedings of the ... ACM Great Lakes Symposium on VLSI.

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Publisher :
ISBN 13 :
Total Pages : 488 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Proceedings of the ... ACM Great Lakes Symposium on VLSI. by :

Download or read book Proceedings of the ... ACM Great Lakes Symposium on VLSI. written by and published by . This book was released on 2004 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Performance Optimization Techniques in Analog, Mixed-Signal, and Radio-Frequency Circuit Design

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Author :
Publisher : IGI Global
ISBN 13 : 1466666285
Total Pages : 488 pages
Book Rating : 4.4/5 (666 download)

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Book Synopsis Performance Optimization Techniques in Analog, Mixed-Signal, and Radio-Frequency Circuit Design by : Fakhfakh, Mourad

Download or read book Performance Optimization Techniques in Analog, Mixed-Signal, and Radio-Frequency Circuit Design written by Fakhfakh, Mourad and published by IGI Global. This book was released on 2014-10-31 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improving the performance of existing technologies has always been a focal practice in the development of computational systems. However, as circuitry is becoming more complex, conventional techniques are becoming outdated and new research methodologies are being implemented by designers. Performance Optimization Techniques in Analog, Mix-Signal, and Radio-Frequency Circuit Design features recent advances in the engineering of integrated systems with prominence placed on methods for maximizing the functionality of these systems. This book emphasizes prospective trends in the field and is an essential reference source for researchers, practitioners, engineers, and technology designers interested in emerging research and techniques in the performance optimization of different circuit designs.