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Techniques For Variation Aware Modeling In Static Timing Analysis Of Integrated Circuits
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Book Synopsis Techniques for Variation Aware Modeling in Static Timing Analysis of Integrated Circuits by : Suryanarayana Pendela
Download or read book Techniques for Variation Aware Modeling in Static Timing Analysis of Integrated Circuits written by Suryanarayana Pendela and published by . This book was released on 2010 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: Much of the Semiconductor Industry's success can be attributed to Moore's law which states that the number of transistors on an integrated circuit would double approximately every two years. Semiconductor industry has ever since progressed from designs with a few hundred transistors to today's complex designs incorporating millions of transistors. The current era of nanometer technologies threatens to impact the sustainability of Moore's law with random variations in the manufacturing process impacting yield in a big way. Considerable research efforts have since been devoted to account for these variations leading to a new paradigm called Design for Manufacturing (DFM). Traditional Static Timing Analysis (STA) has given way to Statistical Static Timing Analysis (SSTA) techniques wherein the parameters considered are treated as random variables with assigned probability distribution functions. However, SSTA is still not seen as a mature flow for commercial adoption, owing to the inherent complex nature of the SSTA algorithms. In this thesis, we propose an alternate framework to STA under the presence of process variations using Interval Valued Static Timing Analysis (IVSTA). Process variations are accounted for by using a macro-modeling framework providing an efficient and fast timing analysis technique. Results on standard benchmarks show that IVSTA can predict the timing slack by a margin of 5-10% error and huge improvement of runtime compared to traditional corner based analysis. The framework involves a one-time characterization of the standard cell library and can be incorporated without much modification to the design flow. An iterative optimization framework using IVSTA engine is also presented which optimizes a routed netlist for variations at a minimum penalty of area and power.
Book Synopsis Variation-Aware Design of Custom Integrated Circuits: A Hands-on Field Guide by : Trent McConaghy
Download or read book Variation-Aware Design of Custom Integrated Circuits: A Hands-on Field Guide written by Trent McConaghy and published by Springer Science & Business Media. This book was released on 2012-10-02 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book targets custom IC designers who are encountering variation issues in their designs, especially for modern process nodes at 45nm and below, such as statistical process variations, environmental variations, and layout effects. It teaches them the state-of-the-art in Variation-Aware Design tools, which help the designer to analyze quickly the variation effects, identify the problems, and fix the problems. Furthermore, this book describes the algorithms and algorithm behavior/performance/limitations, which is of use to designers considering these tools, designers using these tools, CAD researchers, and CAD managers.
Book Synopsis Static Timing Analysis for Nanometer Designs by : J. Bhasker
Download or read book Static Timing Analysis for Nanometer Designs written by J. Bhasker and published by Springer Science & Business Media. This book was released on 2009-04-03 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt: iming, timing, timing! That is the main concern of a digital designer charged with designing a semiconductor chip. What is it, how is it T described, and how does one verify it? The design team of a large digital design may spend months architecting and iterating the design to achieve the required timing target. Besides functional verification, the t- ing closure is the major milestone which dictates when a chip can be - leased to the semiconductor foundry for fabrication. This book addresses the timing verification using static timing analysis for nanometer designs. The book has originated from many years of our working in the area of timing verification for complex nanometer designs. We have come across many design engineers trying to learn the background and various aspects of static timing analysis. Unfortunately, there is no book currently ava- able that can be used by a working engineer to get acquainted with the - tails of static timing analysis. The chip designers lack a central reference for information on timing, that covers the basics to the advanced timing veri- cation procedures and techniques.
Book Synopsis Circuit Timing and Leakage Analysis in the Presence of Variability by : Khaled R. Heloue
Download or read book Circuit Timing and Leakage Analysis in the Presence of Variability written by Khaled R. Heloue and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lifetime Reliability-aware Design of Integrated Circuits by : Mohsen Raji
Download or read book Lifetime Reliability-aware Design of Integrated Circuits written by Mohsen Raji and published by Springer Nature. This book was released on 2022-11-16 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the state-of-the-art research in design of modern electronic systems used in safety-critical applications such as medical devices, aircraft flight control, and automotive systems. The authors discuss lifetime reliability of digital systems, as well as an overview of the latest research in the field of reliability-aware design of integrated circuits. They address modeling approaches and techniques for evaluation and improvement of lifetime reliability for nano-scale CMOS digital circuits, as well as design algorithms that are the cornerstone of Computer Aided Design (CAD) of reliable VLSI circuits. In addition to developing lifetime reliability analysis and techniques for clocked storage elements (such as flip-flops), the authors also describe analysis and improvement strategies targeting commercial digital circuits.
Book Synopsis Circuit Performance Verification and Optimization in the Presence of Variability by : Sari Onaissi
Download or read book Circuit Performance Verification and Optimization in the Presence of Variability written by Sari Onaissi and published by . This book was released on 2011 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: The continued scaling of digital integrated circuits has led to an increasingly larger impact of process, supply voltage, and temperature (PVT) variations. The effect of these variations on logic cell and interconnect delays has introduced challenges to both circuit performance (timing) verification and optimization. In order for us to fully take advantage of the benefits of technology scaling, it is essential that "variation-aware" techniques for performance verification and optimization be developed and used in modern design flows.In this thesis such techniques for both performance verification and optimization are presented. First, we present a fast method for finding the worst-case slacks over all process and environmental corners. This method uses the standard set of PVT corners available in industry, and provides large runtime gains while maintaining a high degree of accuracy. After that, we propose an efficient block-based parameterized timing analysis technique that can accurately capture circuit delays at every point in the parameter space, by reporting all paths that can become critical. This method employs parameterized static timing analysis (PSTA) variability models, and allows one to easily examine local robustness to parameters in different regions of the parameter space. Next, we introduce an optimization method that alters clock network lines so that a circuit meets its timing constraints at all PVT settings under PSTA variability models. This is formulated as a Linear Program (LP), which is based on a clock skew optimization formulation, and as a result it can be solved efficiently. Finally, we present a method that uses characterized, pre-silicon, PSTA variational timing models to identify speedpaths that can best explain the observed delay measurements during silicon debug. This is a crucial step, required for both "fixing"' failing paths and for accurate learning from silicon data.
Download or read book Timing written by Sachin Sapatnekar and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Statistical timing analysis is an area of growing importance in nanometer te- nologies‚ as the uncertainties associated with process and environmental var- tions increase‚ and this chapter has captured some of the major efforts in this area. This remains a very active field of research‚ and there is likely to be a great deal of new research to be found in conferences and journals after this book is published. In addition to the statistical analysis of combinational circuits‚ a good deal of work has been carried out in analyzing the effect of variations on clock skew. Although we will not treat this subject in this book‚ the reader is referred to [LNPS00‚ HN01‚ JH01‚ ABZ03a] for details. 7 TIMING ANALYSIS FOR SEQUENTIAL CIRCUITS 7.1 INTRODUCTION A general sequential circuit is a network of computational nodes (gates) and memory elements (registers). The computational nodes may be conceptualized as being clustered together in an acyclic network of gates that forms a c- binational logic circuit. A cyclic path in the direction of signal propagation 1 is permitted in the sequential circuit only if it contains at least one register . In general, it is possible to represent any sequential circuit in terms of the schematic shown in Figure 7.1, which has I inputs, O outputs and M registers. The registers outputs feed into the combinational logic which, in turn, feeds the register inputs. Thus, the combinational logic has I + M inputs and O + M outputs.
Book Synopsis Integrated Circuit and System Design: Power and Timing Modeling, Optimization and Simulation by : José Monteiro
Download or read book Integrated Circuit and System Design: Power and Timing Modeling, Optimization and Simulation written by José Monteiro and published by Springer Science & Business Media. This book was released on 2010-02-18 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of 19th International Workshop on Power and Timing Modeling, Optimization and Simulation, PATMOS 2009, featuring Integrated Circuit and System Design, held in Delft, The Netherlands during September 9-11, 2009. The 26 revised full papers and 10 revised poster papers presented were carefully reviewed and selected from numerous submissions. The papers are organized in topical sections on variability & statistical timing, circuit level techniques, power management, low power circuits & technology, system level techniques, power & timing optimization techniques, self-timed circuits, low power circuit analysis & optimization, and low power design studies.
Book Synopsis Compact Variation-aware Standard Cells for Statistical Static Timing Analysis by : Seyed-Abdollah Aftabjahani
Download or read book Compact Variation-aware Standard Cells for Statistical Static Timing Analysis written by Seyed-Abdollah Aftabjahani and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation reports on a new methodology to characterize and simulate a standard cell library to be used for statistical static timing analysis. A compact variation-aware timing model for a standard cell in a cell library has been developed. The model incorporates variations in the input waveform and loading, process parameters, and the environment into the cell timing model. Principal component analysis (PCA) has been used to form a compact model of a set of waveforms impacted by these sources of variation. Cell characterization involves determining equations describing how waveforms are transformed by a cell as a function of the input waveforms, process parameters, and the environment. Different versions of factorial designs and Latin hypercube sampling have been explored to model cells, and their complexity and accuracy have been compared. The models have been evaluated by calculating the delay of paths. The results demonstrate improved accuracy in comparison with table-based static timing analysis at comparable computational cost. Our methodology has been expanded to adapt to interconnect dominant circuits by including a resistive-capacitive load model. The results show the feasibility of using the new load model in our methodology. We have explored comprehensive accuracy improvement methods to tune the methodology for the best possible results. : The following is a summary of the main contributions of this work to the statistical static timing analysis.
Book Synopsis EDA for IC Implementation, Circuit Design, and Process Technology by : Luciano Lavagno
Download or read book EDA for IC Implementation, Circuit Design, and Process Technology written by Luciano Lavagno and published by CRC Press. This book was released on 2018-10-03 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presenting a comprehensive overview of the design automation algorithms, tools, and methodologies used to design integrated circuits, the Electronic Design Automation for Integrated Circuits Handbook is available in two volumes. The second volume, EDA for IC Implementation, Circuit Design, and Process Technology, thoroughly examines real-time logic to GDSII (a file format used to transfer data of semiconductor physical layout), analog/mixed signal design, physical verification, and technology CAD (TCAD). Chapters contributed by leading experts authoritatively discuss design for manufacturability at the nanoscale, power supply network design and analysis, design modeling, and much more. Save on the complete set.
Book Synopsis Analysis and Methods of Modeling Variation in Statistical Static Timing Analysis by : Eric A. Foreman
Download or read book Analysis and Methods of Modeling Variation in Statistical Static Timing Analysis written by Eric A. Foreman and published by . This book was released on 2011 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Industrial and Applied Mathematics in China by : Ta-tsien Li
Download or read book Industrial and Applied Mathematics in China written by Ta-tsien Li and published by World Scientific. This book was released on 2009 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new volume introduces readers to the current topics of industrial and applied mathematics in China, with applications to material science, information science, mathematical finance and engineering. The authors utilize mathematics for the solution of problems. The purposes of the volume are to promote research in applied mathematics and computational science; further the application of mathematics to new methods and techniques useful in industry and science; and provide for the exchange of information between the mathematical, industrial, and scientific communities.
Book Synopsis Timing Analysis of High Performance Integrated Circuits by : Chirayu S. Amin
Download or read book Timing Analysis of High Performance Integrated Circuits written by Chirayu S. Amin and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel waveform model for improving the accuracy of gate delay prediction in static timing analysis has been developed. Moreover, a full methodology on modeling complex circuits such as unbuffered latches for timing analysis has been developed. Since variations in process, environment, and temperature have become very important, a simple path-based statistical static timing analysis algorithm has also been proposed. The algorithm models timing variations accurately for latest high-performance microprocessors.
Book Synopsis Statistical Performance Analysis and Modeling Techniques for Nanometer VLSI Designs by : Ruijing Shen
Download or read book Statistical Performance Analysis and Modeling Techniques for Nanometer VLSI Designs written by Ruijing Shen and published by Springer Science & Business Media. This book was released on 2014-07-08 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since process variation and chip performance uncertainties have become more pronounced as technologies scale down into the nanometer regime, accurate and efficient modeling or characterization of variations from the device to the architecture level have become imperative for the successful design of VLSI chips. This book provides readers with tools for variation-aware design methodologies and computer-aided design (CAD) of VLSI systems, in the presence of process variations at the nanometer scale. It presents the latest developments for modeling and analysis, with a focus on statistical interconnect modeling, statistical parasitic extractions, statistical full-chip leakage and dynamic power analysis considering spatial correlations, statistical analysis and modeling for large global interconnects and analog/mixed-signal circuits. Provides readers with timely, systematic and comprehensive treatments of statistical modeling and analysis of VLSI systems with a focus on interconnects, on-chip power grids and clock networks, and analog/mixed-signal circuits; Helps chip designers understand the potential and limitations of their design tools, improving their design productivity; Presents analysis of each algorithm with practical applications in the context of real circuit design; Includes numerical examples for the quantitative analysis and evaluation of algorithms presented. Provides readers with timely, systematic and comprehensive treatments of statistical modeling and analysis of VLSI systems with a focus on interconnects, on-chip power grids and clock networks, and analog/mixed-signal circuits; Helps chip designers understand the potential and limitations of their design tools, improving their design productivity; Presents analysis of each algorithm with practical applications in the context of real circuit design; Includes numerical examples for the quantitative analysis and evaluation of algorithms presented.
Book Synopsis Variation-Aware Adaptive Voltage Scaling for Digital CMOS Circuits by : Martin Wirnshofer
Download or read book Variation-Aware Adaptive Voltage Scaling for Digital CMOS Circuits written by Martin Wirnshofer and published by Springer Science & Business Media. This book was released on 2013-02-15 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Increasing performance demands in integrated circuits, together with limited energy budgets, force IC designers to find new ways of saving power. One innovative way is the presented adaptive voltage scaling scheme, which tunes the supply voltage according to the present process, voltage and temperature variations as well as aging. The voltage is adapted “on the fly” by means of in-situ delay monitors to exploit unused timing margin, produced by state-of-the-art worst-case designs. This book discusses the design of the enhanced in-situ delay monitors and the implementation of the complete control-loop comprising the monitors, a control-logic and an on-chip voltage regulator. An analytical Markov-based model of the control-loop is derived to analyze its robustness and stability. Variation-Aware Adaptive Voltage Scaling for Digital CMOS Circuits provides an in-depth assessment of the proposed voltage scaling scheme when applied to an arithmetic and an image processing circuit. This book is written for engineers interested in adaptive techniques for low-power CMOS circuits.
Book Synopsis Modeling of Deterministic Within-die Variation in Timing Analysis, Leakage Current Analysis, and Delay Fault Diagnosis by : Munkang Choi
Download or read book Modeling of Deterministic Within-die Variation in Timing Analysis, Leakage Current Analysis, and Delay Fault Diagnosis written by Munkang Choi and published by . This book was released on 2007 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: To determine how these within-die variations impact circuit performance, a new analysis tool is required. Thus a methodology has been proposed to involve layout-dependent within-die variations in static timing analysis. The methodology combines a set of scripts and commercial tools to analyze a full chip. The tool has been applied to analyze delay of ISCAS85 benchmark circuits in the presence of imperfect lithography and CMP variation.
Book Synopsis Variation-aware Timing Analysis and Optimization for Digital ICs by : Jiayong Le
Download or read book Variation-aware Timing Analysis and Optimization for Digital ICs written by Jiayong Le and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
