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PushPull: Short-Path Padding for Timing Error Resilient Circuits.
- Source :
-
IEEE Transactions on Computer-Aided Design of Integrated Circuits & Systems . Apr2014, Vol. 33 Issue 4, p558-570. 13p. - Publication Year :
- 2014
-
Abstract
- Modern IC designs are exposed to a wide range of dynamic variations. Traditionally, a conservative timing guardband is required to guarantee correct operations under the worst-case variation, thus leading to performance degradation. To remove the guardband, resilient circuits are proposed. However, the short-path padding (hold time fixing) problem in resilient circuits is far severer than conventional IC design. Therefore, in this paper, we focus on the short-path padding problem to enable the timing error detection and correction mechanism of resilient circuits. Unlike recent prior work adopts greedy heuristics with a local view, we determine the padding values and locations with a global view. Moreover, we utilize spare cells and a dummy metal to further achieve the derived padding values at physical implementation. Experimental results show that our method is promising to validate timing error-resilient circuits. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 02780070
- Volume :
- 33
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Computer-Aided Design of Integrated Circuits & Systems
- Publication Type :
- Academic Journal
- Accession number :
- 95055080
- Full Text :
- https://doi.org/10.1109/TCAD.2014.2304681