User-controlled Layout Synthesis for Analog Integrated Circuits PDF Download
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Author: Volker Meyer zu Bexten
Publisher:
ISBN: 9783826500930
Category : Computer-aided design
Languages : de
Pages : 185
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Book Description
Author: Volker Meyer zu Bexten
Publisher:
ISBN: 9783826500930
Category : Computer-aided design
Languages : de
Pages : 185
Get Book Here
Book Description
Author: Lihong Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Helmut E. Graeb
Publisher: Springer Science & Business Media
ISBN: 1441969322
Category : Technology & Engineering
Languages : en
Pages : 302
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Book Description
Integrated circuits are fundamental electronic components in biomedical, automotive and many other technical systems. A small, yet crucial part of a chip consists of analog circuitry. This part is still in large part designed by hand and therefore represents not only a bottleneck in the design flow, but also a permanent source of design errors responsible for re-designs, costly in terms of wasted test chips and in terms of lost time-to-market. Layout design is the step of the analog design flow with the least support by commercially available, computer-aided design tools. This book provides a survey of promising new approaches to automated, analog layout design, which have been described recently and are rapidly being adopted in industry.
Author: Geert Van der Plas
Publisher: Springer Science & Business Media
ISBN: 0306479133
Category : Technology & Engineering
Languages : en
Pages : 230
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Book Description
This text addresses the design methodologies and CAD tools available for the systematic design and design automation of analogue integrated circuits. Two complementary approaches discussed increase analogue design productivity, demonstrated throughout using design times of the different design experiments undertaken.
Author: Rob A. Rutenbar
Publisher: John Wiley & Sons
ISBN: 047122782X
Category : Technology & Engineering
Languages : en
Pages : 773
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Book Description
The tools and techniques you need to break the analog design bottleneck! Ten years ago, analog seemed to be a dead-end technology. Today, System-on-Chip (SoC) designs are increasingly mixed-signal designs. With the advent of application-specific integrated circuits (ASIC) technologies that can integrate both analog and digital functions on a single chip, analog has become more crucial than ever to the design process. Today, designers are moving beyond hand-crafted, one-transistor-at-a-time methods. They are using new circuit and physical synthesis tools to design practical analog circuits; new modeling and analysis tools to allow rapid exploration of system level alternatives; and new simulation tools to provide accurate answers for analog circuit behaviors and interactions that were considered impossible to handle only a few years ago. To give circuit designers and CAD professionals a better understanding of the history and the current state of the art in the field, this volume collects in one place the essential set of analog CAD papers that form the foundation of today's new analog design automation tools. Areas covered are: * Analog synthesis * Symbolic analysis * Analog layout * Analog modeling and analysis * Specialized analog simulation * Circuit centering and yield optimization * Circuit testing Computer-Aided Design of Analog Integrated Circuits and Systems is the cutting-edge reference that will be an invaluable resource for every semiconductor circuit designer and CAD professional who hopes to break the analog design bottleneck.
Author: Ricardo M. F. Martins
Publisher: Springer Science & Business Media
ISBN: 3642331467
Category : Technology & Engineering
Languages : en
Pages : 104
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Book Description
This book presents an innovative methodology for the automatic generation of analog integrated circuits (ICs) layout, based on template descriptions and on evolutionary computational techniques. A design automation tool, LAYGEN II was implemented to validate the proposed approach giving special emphasis to reusability of expert design knowledge and to efficiency on retargeting operations.
Author: Ewout S. J. Martens
Publisher: Springer Science & Business Media
ISBN: 1402068026
Category : Technology & Engineering
Languages : en
Pages : 287
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Book Description
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.
Author: Keren Zhu (Ph. D.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
The performance of analog circuits is critically dependent on layout parasitics, but the layout has traditionally been a manual and time-consuming task. Analog and mixed-signal (AMS) circuits often impose specific parasitics and mismatch requirements on their layout implementation. Designers leverage their prior experience to place devices in specific patterns and configurations to reduce parasitics, the effects of local variation gradients, and layout-dependent effects. The reason behind this is from both the algorithm and software. Automated AMS layout synthesis faces challenges in developing effective place-and-route (PNR) algorithms for high-performance AMS circuits and lacks easily usable and accessible software. This dissertation covers several analog PNR algorithms to improve the quality of automated layout synthesis and the circuit learning methodology targeting further reducing human efforts. The proposed techniques have become critical parts of the open-source AMS layout synthesis software MAGICAL. This dissertation first proposes a novel analog routing methodology. The proposed framework, GeniusRoute, leverages machine learning to provide routing guidance, mimicking the sophisticated manual layout approaches. This approach allows the automatic analog router to follow the design expertise of human engineers while no additional manual effort is required to code the layout strategies. The proposed methodology obtains significant improvements over existing techniques and achieves competitive performance to manual layouts while capable of generalizing to circuits of different functionality. This dissertation also proposes a practical mixed-signal placement framework. Unlike the existing techniques, which mainly focus on geometric constraints in analog building blocks, the proposed framework formulates and effectively optimizes the system-level signal flow for sensitive mixed-signal circuits. Leveraging prior knowledge from schematics, we propose considering the critical signal paths in automatic AMS placement and presenting an efficient framework. The proposed framework shows efficiency and effectiveness with a reduced routed wirelength compared to a state-of-the-art AMS placer and improved post-layout performance. Furthermore, the well generation in the analog layout synthesis flow is revisited. Instead of treating well generation as an isolated process, we propose a new methodology of well-aware placement. We formulate the well-aware placement problem and propose a machine learning-guided placement framework. By allowing well sharing between transistors and explicitly considering wells in placement, the proposed framework achieves more than 74% improvement in the area and more than 26% reduction in half-perimeter wirelength over existing placement methodologies in experimental results. Finally, this dissertation revisits and explores the fundamental problem of analog circuit learning. A novel unsupervised circuit learning framework is proposed to leverage the human layout as a training label. The machine learning model is pre-trained with automatically extracted labels and then transferred to other downstream tasks. The transferrable circuit representation model demonstrates the possibility of a machine learning model to understand the circuits
Author: Esteban Tlelo-Cuautle
Publisher:
ISBN: 9781536109894
Category : Technology & Engineering
Languages : en
Pages : 300
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Book Description
Editor Biography: Esteban Tlelo-Cuautle received a B.Sc. degree from Instituto Tecnol�gico de Puebla (ITP), M�xico in 1993. He then received both M.Sc. and Ph.D. degrees from Instituto Nacional de Astrof�sica, �ptica y Electr�nica (INAOE), M�xico, in 1995 and 2000, respectively. He has published 13 books and more than 250 works in book chapters, journals and conferences. He is an associate editor of IEEE Transactions on Circuits and Systems I: Regular Papers, and Integration - the VLSI Journal. His research interests include modeling and simulation of circuits and systems, design and applications of chaotic oscillators, symbolic analysis, multi-objective evolutionary algorithms, and analogue/radio frequency (RF) and mixed-signal design automation tools. Book Description: This book includes recent research that focuses on analog integrated circuits and covers three main topics, namely: fundamentals, synthesis and performance. Eleven chapters are divided among these three topics as follows: Chapters One to Four are a part of fundamentals. The first chapter ("The Next Generation of Nanomaterials for Designing Analog Integrated Circuits") describes new directions for applying nanomaterials for the design of modern analog circuits. Chapter Two ("Application of Nullors in Designing Analog Circuits for Frequency Bandwidth") uses the pathological circuit element known as a nullor to design analog integrated circuits with frequency specifications to accomplish a desired bandwidth. Chapter Three ("RC and RL to LC Circuit Conversion, and its Application in Poles and Zeros Identification") details an important property from circuit theory to estimate roots by performing conversions of passive elements. Chapter Four ("Enhanced and Improved Symbolic Circuit Analysis Using MATLAB") relays the development of symbolic circuit analysis and focuses on enhancing an already developed symbolic tool to allow the symbolic analysis of large circuits. The synthesis of analog integrated circuits has been a challenge because there is no way to establish general rules to cover the gap between the behavioral and transistor circuit levels of abstraction. In this book, the second topic includes four chapters, from Five to Eight. Chapter Five ("On the Synthesis of Sinusoidal Oscillators Using Nullors"), just as in Chapter Two, uses the pathological circuit element known as a nullor to perform the synthesis of sinusoidal oscillators, which are quite useful in many electronic systems. Other kinds of oscillators are described in Chapter Six ("Synthesis of SRCOs and Multi-Phase Oscillators from State Variables to their Implementation Using CMOS IC Technology") where the synthesis process identifies the resistor that controls the oscillating frequency and applies a state variable approach. Chapter Seven ("Evolutionary Optimization in the Design of CMOS Analog Integrated Circuits") shows the application of heuristics for circuit optimization, and how it can be extended to bigger analog integrated circuits. Chapter Eight provides details on the synthesis and design of a CMOS harmonic mixer with output power management for narrowband and wideband wireless communications: the Bluetooth and UWB cases. The third part of this book is devoted to analog circuit performances and includes three chapters. Chapter Nine details the FPGA realization of radio frequency (RF) power amplifier models. In this case, the system is modeled in the analog domain and implemented in the digital one. Chapter Ten "White-Box Models of Optimal-Sized Solutions of Analog Integrated Circuits") generates analytical expressions for modeling the dominant behavior of CMOS analog circuits. Finally, Chapter Eleven ("Radial Basis Function Surrogate Modeling for the Accurate Design of Analog Circuits") applies modern modeling approaches to accomplish real target specifications and to improve the design of reliable circuits. Target Audience: Electrical and Electronics Engineers, Integrated Circuits Designers, Electronic Design Automation Developers
Author: Koen Lampaert
Publisher: Springer Science & Business Media
ISBN: 9780792384793
Category : Technology & Engineering
Languages : en
Pages : 196
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Book Description
Analog integrated circuits are very important as interfaces between the digital parts of integrated electronic systems and the outside world. A large portion of the effort involved in designing these circuits is spent in the layout phase. Whereas the physical design of digital circuits is automated to a large extent, the layout of analog circuits is still a manual, time-consuming and error-prone task. This is mainly due to the continuous nature of analog signals, which causes analog circuit performance to be very sensitive to layout parasitics. The parasitic elements associated with interconnect wires cause loading and coupling effects that degrade the frequency behaviour and the noise performance of analog circuits. Device mismatch and thermal effects put a fundamental limit on the achievable accuracy of circuits. For successful automation of analog layout, advanced place and route tools that can handle these critical parasitics are required. In the past, automatic analog layout tools tried to optimize the layout without quantifying the performance degradation introduced by layout parasitics. Therefore, it was not guaranteed that the resulting layout met the specifications and one or more layout iterations could be needed. In Analog Layout Generation for Performance and Manufacturability, the authors propose a performance driven layout strategy to overcome this problem. In this methodology, the layout tools are driven by performance constraints, such that the final layout, with parasitic effects, still satisfies the specifications of the circuit. The performance degradation associated with an intermediate layout solution is evaluated at runtime using predetermined sensitivities. In contrast with other performance driven layout methodologies, the tools proposed in this book operate directly on the performance constraints, without an intermediate parasitic constraint generation step. This approach makes a complete and sensible trade-off between the different layout alternatives possible at runtime and therefore eliminates the possible feedback route between constraint derivation, placement and layout extraction. Besides its influence on the performance, layout also has a profound impact on the yield and testability of an analog circuit. In Analog Layout Generation for Performance and Manufacturability, the authors outline a new criterion to quantify the detectability of a fault and combine this with a yield model to evaluate the testability of an integrated circuit layout. They then integrate this technique with their performance driven routing algorithm to produce layouts that have optimal manufacturability while still meeting their performance specifications. Analog Layout Generation for Performance and Manufacturability will be of interest to analog engineers, researchers and students.
