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Heterogeneous BISR techniques for yield and reliability enhancement using high level synthesis transformations

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3 Author(s)
Potkonjak, M.M. ; NEC USA, Princeton, NJ, USA ; Guerra, L.M. ; Rabaey, J.M.

Built-In-Self-Repair (BISR) is a fault tolerance technique against permanent faults, where in addition to core operational modules, a set of spare modules is provided. If a faulty core module is detected, it is replaced with a spare module. The BISR methodology has been used only in situations where a failed module of one type can only be replaced by a backup module of the same type. The authors propose a new BISR approach for ASIC design which removes this constraint and enables replacement of modules of different types with the same spare units by exploiting the design space exploration abilities provided by the use of transformations in high level synthesis. Fast and efficient high level synthesis algorithms which take into account peculiarities of transformation-based design for BISR are presented. The potential of the approach is demonstrated on a set of benchmark examples by showing significant yield and relative productivity improvements which are calculated using state-of-the-art yield modeling techniques

Published in:

Application-Specific Array Processors, 1993. Proceedings., International Conference on

Date of Conference:

25-27 Oct 1993