Author(s): Abas MA; Russell G; Kinniment DJ
Abstract: The rapid pace of change in IC technology, specifically in speed of operation, demands sophisticated design solutions for IC testing methodologies. Moreover, the current technology of system-on-chip (SOC) makes great demands for testing internal speed accurately as the limitation on accessing internal nodes using I/O pins becomes more difficult. This paper presents two high-resolution time measurement schemes for digital BIST applications, namely: two-delay interpolation method (TDIM) and time amplifier. The two schemes are combined to produce a completely new design for BIST time measurement which offers two main advantages: a low range of timing measurement which has never been achieved before, and a small size of layout occupying 0.2 mm/sup 2/ or equivalent to 3020 transistors. These two features are undoubtedly compatible with present high-speed SOC design architectures. (5 References).
Notes: Gielen G Figueras J 2. Los Alamitos, CA, USA. Proceedings. Design, Automation and Test in Europe Conference and Exhibition. Paris, France. EDAA, EDA Consortium, IEEE Comput. Soc. TTTC. IEEE Comput. Soc. DATC. ECSI. ACM/SIGDA. RAS. 16-20 Feb. 2004.
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Dr Gordon Russell
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