9th International Symposium on Quality Electronic Design (isqed 2008) A Novel Automated Scan Chain Division Method for Shift and Capture Power Reduction in Broadside At-Speed Test March 17-March 19 ISBN: 978-0-7695-3117-5
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ISQED.2008.64
To address the excessive power during test, multiple scan divisions can be created such that not all the circuit blocks are active at the same time. While this concept has been successfully employed in the past for addressing shift power, the reported techniques for at-speed capture power reduction rely on modifications in the automatic test pattern generation (ATPG) algorithms. This paper shows how by analyzing the signal dependencies in the circuit’s sequential graph, scan chain divisions can be created automatically, such that power is guaranteed to be reduced during both shift and capture when Broadside test is employed. This is achieved with the existing ATPG flows and without affecting the transition fault coverage or increasing the scan time.
Index Terms:
low power test, scan division
Citation:
Ho Fai Ko, Nicola Nicolici, "A Novel Automated Scan Chain Division Method for Shift and Capture Power Reduction in Broadside At-Speed Test," isqed, pp.649-654, 9th International Symposium on Quality Electronic Design (isqed 2008), 2008 Usage of this product signifies your acceptance of the Terms of Use. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||