An Architecture for Integrated Test Data Compression and Abort-on-Fail Testing in a Multi-Site Environment

Research output: Contribution to journalArticle

Abstract

The semiconductor technology development makes it possible to fabricate increasingly advanced integrated circuits (ICs). However, because of imperfections at manufacturing, each individual IC must be tested. A major problem at IC manufacturing test is the increasing test data volume as it leads to high automatic test equipment (ATE) memory requirement, long test application time and low throughput. In contrast with existing approaches, which address either test data compression for ATE memory reduction or abort-on-fail testing for test time minimisation, an architecture that supports both test data compression and abort-on-fail testing at clock-cycle granularity is proposed, and hence both ATE memory reduction and test application time minimisation are addressed. Further, the proposed architecture efficiently tackles low throughput as the architecture allows multi-site testing at a constant ATE memory requirement, which is independent of the number of tested ICs. Advantages of the architecture, compared with test compression architecture, are that diagnostic capabilities are not reduced and there is no need for special handling of unknowns (X) in the produced test responses (PR). Experiments on ISCAS benchmark circuits and an industrial circuit have been performed.

Details

Authors
External organisations
  • Linköping University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • integrated circuits, testing, test data volume, compression, abort-on-fail
Original languageEnglish
Pages (from-to)275-284
JournalIET Computers and Digital Techniques
Volume2
Issue number4
Publication statusPublished - 2008
Publication categoryResearch
Peer-reviewedYes
Externally publishedYes