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Scanning of test vectors during testing causes unnecessary and excessive switching in the combinational circuit compared to that in the normal operation. In this paper, we propose a modified design of a scan flip-flop which eliminates the power consumed due to unnecessary switching in the combinational circuit during scan shift, with a little impact on performance. The new scan flip-flop disables...
In this paper, a hybrid network consisting of a trigonometric functional link artificial neural network (FLANN) and fuzzy logic system named as functional link neural fuzzy (FLNF) model is used to predict the stock market indices. The proposed model uses a functional link neural network to the consequent part of the fuzzy rules. The consequent part of FLNF model is a non-linear combination of input...
Scan chains contain a high percentage of the transistors in logic parts of VLSI designs. Nevertheless, faults inside scan cells are not directly targeted by scan based tests currently used, and they are assumed to be detected by what are called flush tests. Recently we investigated the detectability of stuck-at, stuck-on and stuck-open faults internal to scan chains using existing tests. We also proposed...
The objective of using logic BIST for online and periodic testing is to identify defects, like opens, resulting from the wear and tear of the circuit. We have shown that existing test sets have a low coverage for open defects located in scan flip-flops, even though such defects may affect functional operation. Existing Logic BIST structures suffer from the same limitations. A novel Logic BIST architecture...
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