Hybrid Code Based Test Data Compression And Decompression For Vlsi Circuits

Doctoral Thesis / Dissertation from the year 2018 in the subject Computer Science - Applied, grade: 6, Anna University, course: PhD, language: English, abstract: Test data compression is an effective method for reducing test data volume and memory requirement with relatively small cost. An effective test structure for embedded hard cores is easy to implement and it is also capable of producing high-quality tests as part of the design flow. The purpose of Test data compression intends to reduce Test data volume by using Test Stimulus Compression such as Code-based schemes, Linear-decompression-based schemes and Broadcast-scan-based schemes. The research work addresses the problem of the test data volume and memory requirements. The primary objective of this study is to introduce novel techniques that improve the compression ratio by reducing test data volume during at-speed test in scan designs. This in turn diminishes the tester memory requirement and hence chip area is reduced for Built-in-Self Test environment. The aim of this research is to introduce various compression algorithms by combining the existing data compression techniques. The algorithms are designed to reduce the volume of test patterns of input that is essential to guarantee an acceptable level of fault coverage which is a key parameter to evaluate the quality of testing.

This text focuses on techniques for minimizing power dissipation during test application at logic and register-transfer levels of abstraction of the VLSI design flow. It surveys existing techniques and presents several test automation techniques for reducing power in scan-based sequential circuits and BIST data paths.

This book is based on the author's advanced undergraduate or beginning graduate course, Computer Security and Reliability, which he has been teaching for the past six years. The author takes an index based quantitative approach to the subject as opposed to the usual verbal or qualitative or subjective case histories. The TWC-Solver, available on an accompanying CD-ROM, contains 10 java-coded, main applications and hundreds of subitems, and assists the reader in understanding the numerical implementations of the book chapters.

This book is a comprehensive guide to new DFT methods that will show the readers how to design a testable and quality product, drive down test cost, improve product quality and yield, and speed up time-to-market and time-to-volume. Most up-to-date coverage of design for testability. Coverage of industry practices commonly found in commercial DFT tools but not discussed in other books. Numerous, practical examples in each chapter illustrating basic VLSI test principles and DFT architectures.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

The theme of the April 1999 symposium Scaling deeper to submicron: test technology challenges reflects the issues being created by the move toward nanometer technologies. Many creative and novel ideas and approaches to the current and future electronic circuit testing-related problems are explored