Latchup in CMOS Technology: The Problem and Its Cure / Edition 1

by R.R. Troutman

Overview

Why a book on Iatchup? Latchup has been, and continues to be, a potentially serious CMOS reliability concern. This concern is becoming more widespread with the ascendency of CMOS as the dominant VLSI technology, particularly as parasitic bipolar characteristics continue to improve at ever smaller dimensions on silicon wafers with ever lower defect densities. Although many successful parts have been marketed, latchup solutions have often been ad hoc. Although latchup avoidance techniques have been previously itemized, there has been little quantitative evaluation of prior latchup fixes. What is needed is a more general, more systematic treatment of the latchup problem. Because of the wide variety of CMOS technologies and the long term interest in latchup, some overall guiding principles are needed. Appreciating the variety of possible triggering mechanisms is key to a real understanding of latchup. This work reviews the origin of each and its effect on the parasitic structure. Each triggering mechanism is classified according to a new taxonomy.

Product Details

ISBN-13:	9780898382150
Publisher:	Springer US
Publication date:	04/30/1986
Series:	The Springer International Series in Engineering and Computer Science , #13
Edition description:	1986
Pages:	244
Product dimensions:	6.14(w) x 9.21(h) x 0.24(d)

Table of Contents

1. Introduction.- 2. Latchup Overview.- 3. Problem Description.- 4. Latchup Models and Analyses.- 5. Latchup Characterization.- 6. Avoiding Latchup.- 7. Summary.- Appendices.- A. Stability Considerations for PNPN Current-Voltage Measurements.- B. Possible Latchup Characterization Problems.- References.- Glossary: Symbol Definitions.- About the Author.