An Architecture for Integrated Test Data Compression and Abort-on-Fail Testing in a Multi-Site Environment
Author
Summary, in English
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.
Publishing year
2008
Language
English
Pages
275-284
Publication/Series
IET Computers and Digital Techniques
Volume
2
Issue
4
Document type
Journal article
Publisher
Institution of Engineering and Technology
Topic
- Electrical Engineering, Electronic Engineering, Information Engineering
Keywords
- integrated circuits
- testing
- test data volume
- compression
- abort-on-fail
Status
Published
ISBN/ISSN/Other
- ISSN: 1751-8601