Title
Temporal pulse-clocked multi-bit flip-flop mitigating SET and SEU
Abstract
Hardening the flip-flops and latches is the most straightforward way to improve the soft-error robustness of sequential logic circuits. This paper presents novel pulse-clocked latch based flip-flops that mitigate not just single event upsets (SEUs) but also single event transients (SETs) that are an increasing threat in high performance logic. The design uses triple-mode redundant latches, combined with appropriate clocking to provide redundancy in both space and time. Analysis of the flip-flop operation and immunity to both SEUs and SETs, as well as layout that provides adequate critical node separation to prevent multi-node charge collection failures, are presented. The multi-bit flip-flop macro has been fabricated and tested functional as shift registers on a 90-nm foundry LP process.
Year
DOI
Venue
2015
10.1109/ISCAS.2015.7168758
International Symposium on Circuits and Systems
Keywords
Field
DocType
Flip-Flop, multiple node charge collection, single event transient, single event upset, triple mode redundancy, temporal hardening
Shift register,Sequential logic,Computer science,Robustness (computer science),Electronic engineering,Redundancy (engineering),Macro,Electronic circuit,Flip-flop,Single event upset
Conference
ISSN
Citations 
PageRank 
0271-4302
4
0.59
References 
Authors
4
3
Name
Order
Citations
PageRank
Sushil Kumar151054.39
Srivatsan Chellappa2223.45
Lawrence T. Clark315533.27