A Novel Scheme to Reduce Power Supply Noise for High-Quality At-Speed Scan Testing - LIRMM - Laboratoire d’Informatique, de Robotique et de Microélectronique de Montpellier Access content directly
Conference Papers Year : 2007

A Novel Scheme to Reduce Power Supply Noise for High-Quality At-Speed Scan Testing

Abstract

High-quality at-speed scan testing, characterized by high small-delay-defect detecting capability, is indispensable to achieve high delay test quality for DSM circuits. However, such testing is susceptible to yield loss due to excessive power supply noise caused by high launch-induced switching activity. This paper addresses this serious problem with a novel and practical post-ATPG X-filling scheme, featuring (1) a test relaxation method, called path keeping X-identification, that finds don't-care bits from a fully-specified transition delay test set while preserving its delay test quality by keeping the longest paths originally sensitized for fault detection, and (2) an X-filling method, called justification-probability-based fill (JP-fill), that is both effective and scalable for reducing launch-induced switching activity. This scheme can be easily implemented into any ATPG flow to effectively reduce power supply noise, without any impact on delay test quality, test data volume, area overhead, and circuit timing.
Fichier principal
Vignette du fichier
ITC_LowPower.pdf (413.74 Ko) Télécharger le fichier
Loading...

Dates and versions

lirmm-00195682 , version 1 (11-12-2007)

Identifiers

Cite

Xiaoqing Wen, Kohei Miyase, Seiji Kajihara, Tatsuya Suzuki, Yuta Yamato, et al.. A Novel Scheme to Reduce Power Supply Noise for High-Quality At-Speed Scan Testing. ITC 2007 - IEEE International Test Conference, Oct 2007, Santa Clara, CA, United States. pp.1-10, ⟨10.1109/TEST.2007.4437632⟩. ⟨lirmm-00195682⟩
104 View
361 Download

Altmetric

Share

Gmail Facebook X LinkedIn More