Circuit Placement For Predictable Performance
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Circuit Placement For Predictable Performance
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Author : Peter S. Hauge
language : en
Publisher:
Release Date : 1987
Circuit Placement For Predictable Performance written by Peter S. Hauge and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Computer-aided design categories.
Analog Layout Generation For Performance And Manufacturability
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Author : Koen Lampaert
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-18
Analog Layout Generation For Performance And Manufacturability written by Koen Lampaert and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-18 with Technology & Engineering categories.
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.
Modern Placement Techniques
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Author : Majid Sarrafzadeh
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Modern Placement Techniques written by Majid Sarrafzadeh and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Technology & Engineering categories.
Modern Placement Techniques explains physical design and VLSI/CAD placement to the professional engineer and engineering student. Along with explaining the problems that are associated with placement, the book gives an overview of existing placement algorithms, techniques and methodologies. Modern Placement Techniques emphasizes recent advances in addressing the placement problem, including congestion-driven, timing driven, mixed macro-cell and standard cell placement. The book presents the Dragon placement tool, with detailed algorithm descriptions for wire length, congestion and timing optimization. Placement benchmarks and results produced by Dragon are explained in detail.
Layout Optimization In Vlsi Design
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Author : Bing Lu
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Layout Optimization In Vlsi Design written by Bing Lu and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Computers categories.
Introduction The exponential scaling of feature sizes in semiconductor technologies has side-effects on layout optimization, related to effects such as inter connect delay, noise and crosstalk, signal integrity, parasitics effects, and power dissipation, that invalidate the assumptions that form the basis of previous design methodologies and tools. This book is intended to sample the most important, contemporary, and advanced layout opti mization problems emerging with the advent of very deep submicron technologies in semiconductor processing. We hope that it will stimulate more people to perform research that leads to advances in the design and development of more efficient, effective, and elegant algorithms and design tools. Organization of the Book The book is organized as follows. A multi-stage simulated annealing algorithm that integrates floorplanning and interconnect planning is pre sented in Chapter 1. To reduce the run time, different interconnect plan ning approaches are applied in different ranges of temperatures. Chapter 2 introduces a new design methodology - the interconnect-centric design methodology and its centerpiece, interconnect planning, which consists of physical hierarchy generation, floorplanning with interconnect planning, and interconnect architecture planning. Chapter 3 investigates a net-cut minimization based placement tool, Dragon, which integrates the state of the art partitioning and placement techniques.
Handbook Of Algorithms For Physical Design Automation
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Author : Charles J. Alpert
language : en
Publisher: CRC Press
Release Date : 2008-11-12
Handbook Of Algorithms For Physical Design Automation written by Charles J. Alpert and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-11-12 with Computers categories.
The physical design flow of any project depends upon the size of the design, the technology, the number of designers, the clock frequency, and the time to do the design. As technology advances and design-styles change, physical design flows are constantly reinvented as traditional phases are removed and new ones are added to accommodate changes in technology. Handbook of Algorithms for Physical Design Automation provides a detailed overview of VLSI physical design automation, emphasizing state-of-the-art techniques, trends and improvements that have emerged during the previous decade. After a brief introduction to the modern physical design problem, basic algorithmic techniques, and partitioning, the book discusses significant advances in floorplanning representations and describes recent formulations of the floorplanning problem. The text also addresses issues of placement, net layout and optimization, routing multiple signal nets, manufacturability, physical synthesis, special nets, and designing for specialized technologies. It includes a personal perspective from Ralph Otten as he looks back on the major technical milestones in the history of physical design automation. Although several books on this topic are currently available, most are either too broad or out of date. Alternatively, proceedings and journal articles are valuable resources for researchers in this area, but the material is widely dispersed in the literature. This handbook pulls together a broad variety of perspectives on the most challenging problems in the field, and focuses on emerging problems and research results.
Algorithmic Aspects Of Vlsi Layout
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Author : Der-tsai Lee
language : en
Publisher: World Scientific
Release Date : 1993-11-22
Algorithmic Aspects Of Vlsi Layout written by Der-tsai Lee and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-11-22 with Computers categories.
In the past two decades, research in VLSI physical design has been directed toward automation of layout process. Since the cost of fabricating a circuit is a fast growing function of the circuit area, circuit layout techniques are developed with an aim to produce layouts with small areas. Other criteria of optimality such as delay and via minimization need to be taken into consideration. This book includes 14 articles that deal with various stages of the VLSI layout problem. It covers topics including partitioning, floorplanning, placement, global routing, detailed routing and layout verification. Some of the chapters are review articles, giving the state-of-the-art of the problems related to timing driven placement, global and detailed routing, and circuit partitioning. The rest of the book contains research articles, giving recent findings of new approaches to the above-mentioned problems. They are all written by leading experts in the field. This book will serve as good references for both researchers and professionals who work in this field.
Vlsi Physical Design From Graph Partitioning To Timing Closure
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Author : Andrew B. Kahng
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-01-27
Vlsi Physical Design From Graph Partitioning To Timing Closure written by Andrew B. Kahng and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-01-27 with Technology & Engineering categories.
Design and optimization of integrated circuits are essential to the creation of new semiconductor chips, and physical optimizations are becoming more prominent as a result of semiconductor scaling. Modern chip design has become so complex that it is largely performed by specialized software, which is frequently updated to address advances in semiconductor technologies and increased problem complexities. A user of such software needs a high-level understanding of the underlying mathematical models and algorithms. On the other hand, a developer of such software must have a keen understanding of computer science aspects, including algorithmic performance bottlenecks and how various algorithms operate and interact. "VLSI Physical Design: From Graph Partitioning to Timing Closure" introduces and compares algorithms that are used during the physical design phase of integrated-circuit design, wherein a geometric chip layout is produced starting from an abstract circuit design. The emphasis is on essential and fundamental techniques, ranging from hypergraph partitioning and circuit placement to timing closure.
Physical Design For Multichip Modules
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Author : Mysore Sriram
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Physical Design For Multichip Modules written by Mysore Sriram and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Physical Design for Multichip Modules collects together a large body of important research work that has been conducted in recent years in the area of Multichip Module (MCM) design. The material consists of a survey of published results as well as original work by the authors. All major aspects of MCM physical design are discussed, including interconnect analysis and modeling, system partitioning and placement, and multilayer routing. For readers unfamiliar with MCMs, this book presents an overview of the different MCM technologies available today. An in-depth discussion of various recent approaches to interconnect analysis are also presented. Remaining chapters discuss the problems of partitioning, placement, and multilayer routing, with an emphasis on timing performance. For the first time, data from a wide range of sources is integrated to present a clear picture of a new, challenging and very important research area. For students and researchers looking for interesting research topics, open problems and suggestions for further research are clearly stated. Points of interest include : Clear overview of MCM technology and its relationship to physical design; Emphasis on performance-driven design, with a chapter devoted to recent techniques for rapid performance analysis and modeling of MCM interconnects; Different approaches to multilayer MCM routing collected together and compared for the first time; Explanation of algorithms is not overly mathematical, yet is detailed enough to give readers a clear understanding of the approach; Quantitative data provided wherever possible for comparison of different approaches; A comprehensive list of references to recent literature on MCMs provided.
Performance Driven Placement And Routing Algorithms
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Author : Tong Gao
language : en
Publisher:
Release Date : 1994
Performance Driven Placement And Routing Algorithms written by Tong Gao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Computer-aided design categories.
Abstract: "As technology advances, the effect of intra-module delays become less significant, while the effect of inter-module interconnection delays become more prominent. Also, as power dissipation becomes an important issue in VLSI design, it is desirable for the signals to arrive at the inputs of the modules at the same time in order to reduce the number of unwanted transient switches. To minimize the signal arrival times at the primary ouput pins and the signal skews at the inputs of the modules, we developed a net-based performance driven placement algorithm and a path-based performance driven placement algorithm. As chip architectures become more specific (e.g., FPGA), it is important to consider the physical design information during logic design steps. Therefore, we developed a placement driven technology mapping algorithm for FPGA circuits. Finally, as technology advances, interconnection wires are placed in closer proximity and circuits operate at higher frequencies. Consequently, reduction in crosstalks between interconnection wires becomes an important consideration in VLSI design. To satisfy the crosstalk constraints and to minimize the total crosstalk among all the nets in a design, we developed a track permutation algorithm for gridded channel routing problems. We also developed a wire segment assignment algorithm for both channel routing problems and switchbox routing problems. The experimental results indicate that our algorithms are very promising."
Algorithms For Vlsi Physical Design Automation
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Author : Naveed A. Sherwani
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29
Algorithms For Vlsi Physical Design Automation written by Naveed A. Sherwani and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Technology & Engineering categories.
Algorithms for VLSI Physical Design Automation is a core reference text for graduate students and CAD professionals. It provides a comprehensive treatment of the principles and algorithms of VLSI physical design. Algorithms for VLSI Physical Design Automation presents the concepts and algorithms in an intuitive manner. Each chapter contains 3-4 algorithms that are discussed in detail. Additional algorithms are presented in a somewhat shorter format. References to advanced algorithms are presented at the end of each chapter. Algorithms for VLSI Physical Design Automation covers all aspects of physical design. The first three chapters provide the background material while the subsequent chapters focus on each phase of the physical design cycle. In addition, newer topics like physical design automation of FPGAs and MCMs have been included. The author provides an extensive bibliography which is useful for finding advanced material on a topic. Algorithms for VLSI Physical Design Automation is an invaluable reference for professionals in layout, design automation and physical design.