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A Line-Mode Test with Data Register for ULSI Memory Architecture

Tsukasa OOISHI, Masaki TSUKUDE, Kazutani ARIMOTO, Yoshio MATSUDA, Kazuyasu FUJISHIMA

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Summary :

We propose an advanced hyper parallel testing method which improves the line-mode test method by adding data inversion registers which we call the Advanced Line-mode Test (ALT). This testing method has the same testing capability as the conventional bit-by-bit and multi-bit test method (MBT), because it enables the application of a high sensitive and practical test patterns under the hyper parallel condition. The testing time for fixed data patterns are reduced by 1/1900 (all-0/1, checker board, and etc.). Moreover, the ALT can be applicable to the continuous patterns (march, walking, and etc.). The ALT improved from the line-mode test with registers and comparators (LTR) is able to applicable to the most test patterns and to reduce the testing time remarkably, and is suitable for the ULSI memories.

Publication
IEICE TRANSACTIONS on Electronics Vol.E76-C No.11 pp.1595-1603
Publication Date
1993/11/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Issue on LSI Memories)
Category
DRAM

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