Satya R Chakravarty Livres

Testing techniques for VLSI circuits are undergoing many exciting changes. The predominant method for testing digital circuits consists of applying a set of input stimuli to the IC and monitoring the logic levels at primary outputs. If, for one or more inputs, there is a discrepancy between the observed output and the expected output then the IC is declared to be defective. A new approach to testing digital circuits, which has come to be known as IDDQ testing, has been actively researched for the last fifteen years. In IDDQ testing, the steady state supply current, rather than the logic levels at the primary outputs, is monitored. Years of research suggests that IDDQ testing can significantly improve the quality and reliability of fabricated circuits. This has prompted many semiconductor manufacturers to adopt this testing technique, among them Philips Semiconductors, Ford Microelectronics, Intel, Texas Instruments, LSI Logic, Hewlett-Packard, SUN microsystems, Alcatel, and SGS Thomson. This increase in the use of IDDQ testing should be of interest to three groups of individuals associated with the IC business: Product Managers and Test Engineers, CAD Tool Vendors and Circuit Designers. Introduction to IDDQ Testing is designed to educate this community. The authors have summarized in one volume the main findings of more than fifteen years of research in this area.

The subject of this textbook is social choice theory and welfare economics. In addition to covering the well-known areas of the subject, it includes new issues like welfare evaluation under uncertainty, and inequality. Its easy exposition along with graphical and numerical illustrations of the concepts makes it a useful text.

This monograph initially offers a systematic treatment of the theory and methodology of alternative notions of income polarization and related issues. It then goes on to analyze social polarization, ordinal polarization, and the relations between inequality polarization, fractionalization and likelihood of conflicts. Axiomatic approaches to the measurement of polarization from different perspectives are analyzed rigorously. In order to understand the difference between inequality and polarization, a discussion on income inequality is also included.