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In this paper, considering the interconnection topology information, an abstract model and a new test pattern generation method of signal integrity problems on interconnects are proposed. In addition, previous SPICE-based pattern generation methods are too complex and time consuming to generate test patterns for signal integrity faults. To more accurately detect signal integrity defects on practical...
In this paper, we propose a new test data compression method for reducing test data volume and test application time. The proposed method consists of two steps: scan chain compaction and dictionary-based compression scheme. The scan chain compaction provides a minimum scan chain depth by using compaction of the compatible scan cells in the scan chain. The compacted scan chain is partitioned to the...
In this paper, we propose a new test generation method for delay faults considering crosstalk-induced delay effects, based on a conventional delay ATPG technique in order to reduce the complexity of previous ATPG algorithm for crosstalk delay faults and to consider multiple aggressor crosstalk faults to maximize the noise of the victim line. Since the proposed ATPG for crosstalk-induced delay faults...
This paper presents a segmented scan architecture to reduce both test application time and test power consumption. The proposed scan architecture partitions scan chains into several segments and groups these segments into several compatible segment groups. All segments within each compatible segment group are filled with test vector data in parallel. Since scan shift operations are limited to segments,...
Locating the scan chain faults is very important for dedicated IC manufacturers to guide the failure analysis process for yield improvement. In this paper, we propose a new symbolic simulation based scan chain diagnosis method to solve the scan chain diagnosis resolution problem as well as the multiple faults problem. The proposed method uses a new symbolic simulation with the faulty probabilities...
To tackle with the increased switching activity during the test operation, this paper proposes a new built-in self test (BIST) scheme for low energy testing that uses a statistical code and a new technique to skip unnecessary test sequences. From a general point of view, the goal of this technique is to minimize the total power consumption during a test and to allow the at-speed test in order to achieve...
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