Layout Synthesis of Analog Integrated Circuits

Layout Synthesis of Analog Integrated Circuits PDF Author: Lihong Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description

Layout Synthesis of Analog Integrated Circuits

Layout Synthesis of Analog Integrated Circuits PDF Author: Lihong Zhang
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description


Analog Layout Synthesis

Analog Layout Synthesis PDF 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.

User-controlled Layout Synthesis for Analog Integrated Circuits

User-controlled Layout Synthesis for Analog Integrated Circuits PDF Author: Volker Meyer zu Bexten
Publisher:
ISBN: 9783826500930
Category : Computer-aided design
Languages : de
Pages : 185

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Book Description


A Computer-Aided Design and Synthesis Environment for Analog Integrated Circuits

A Computer-Aided Design and Synthesis Environment for Analog Integrated Circuits PDF 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.

A Top-Down, Constraint-Driven Design Methodology for Analog Integrated Circuits

A Top-Down, Constraint-Driven Design Methodology for Analog Integrated Circuits PDF Author: Henry Chang
Publisher: Springer Science & Business Media
ISBN: 1441987525
Category : Technology & Engineering
Languages : en
Pages : 368

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Book Description
Analog circuit design is often the bottleneck when designing mixed analog-digital systems. A Top-Down, Constraint-Driven Design Methodology for Analog Integrated Circuits presents a new methodology based on a top-down, constraint-driven design paradigm that provides a solution to this problem. This methodology has two principal advantages: (1) it provides a high probability for the first silicon which meets all specifications, and (2) it shortens the design cycle. A Top-Down, Constraint-Driven Design Methodology for Analog Integrated Circuits is part of an ongoing research effort at the University of California at Berkeley in the Electrical Engineering and Computer Sciences Department. Many faculty and students, past and present, are working on this design methodology and its supporting tools. The principal goals are: (1) developing the design methodology, (2) developing and applying new tools, and (3) `proving' the methodology by undertaking `industrial strength' design examples. The work presented here is neither a beginning nor an end in the development of a complete top-down, constraint-driven design methodology, but rather a step in its development. This work is divided into three parts. Chapter 2 presents the design methodology along with foundation material. Chapters 3-8 describe supporting concepts for the methodology, from behavioral simulation and modeling to circuit module generators. Finally, Chapters 9-11 illustrate the methodology in detail by presenting the entire design cycle through three large-scale examples. These include the design of a current source D/A converter, a Sigma-Delta A/D converter, and a video driver system. Chapter 12 presents conclusions and current research topics. A Top-Down, Constraint-Driven Design Methodology for Analog Integrated Circuits will be of interest to analog and mixed-signal designers as well as CAD tool developers.

Computer-Aided Design of Analog Integrated Circuits and Systems

Computer-Aided Design of Analog Integrated Circuits and Systems PDF 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.

High-Level Modeling and Synthesis of Analog Integrated Systems

High-Level Modeling and Synthesis of Analog Integrated Systems PDF 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.

Fully-automated Layout Synthesis for Analog and Mixed-signal Integrated Circuits

Fully-automated Layout Synthesis for Analog and Mixed-signal Integrated Circuits PDF 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

Analog Integrated Circuit Design Automation

Analog Integrated Circuit Design Automation PDF Author: Ricardo Martins
Publisher: Springer
ISBN: 3319340603
Category : Technology & Engineering
Languages : en
Pages : 220

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Book Description
This book introduces readers to a variety of tools for analog layout design automation. After discussing the placement and routing problem in electronic design automation (EDA), the authors overview a variety of automatic layout generation tools, as well as the most recent advances in analog layout-aware circuit sizing. The discussion includes different methods for automatic placement (a template-based Placer and an optimization-based Placer), a fully-automatic Router and an empirical-based Parasitic Extractor. 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. All the methods described are applied to practical examples for a 130nm design process, as well as placement and routing benchmark sets.

Generating Analog IC Layouts with LAYGEN II

Generating Analog IC Layouts with LAYGEN II PDF 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.