Ring Counter Based ATPG for Low Transition Test Pattern Generation

In test mode test patterns are applied in random fashion to the circuit under circuit. This increases switching transition between the consecutive test patterns and thereby increases dynamic power dissipation. The proposed ring counter based ATPG reduces vertical switching transitions by inserting t...

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Main Authors: V. M. Thoulath Begam, S. Baulkani
Format: Article
Language:English
Published: Wiley 2015-01-01
Series:The Scientific World Journal
Online Access:http://dx.doi.org/10.1155/2015/729165
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author V. M. Thoulath Begam
S. Baulkani
author_facet V. M. Thoulath Begam
S. Baulkani
author_sort V. M. Thoulath Begam
collection DOAJ
description In test mode test patterns are applied in random fashion to the circuit under circuit. This increases switching transition between the consecutive test patterns and thereby increases dynamic power dissipation. The proposed ring counter based ATPG reduces vertical switching transitions by inserting test vectors only between the less correlative test patterns. This paper presents the RC-ATPG with an external circuit. The external circuit consists of XOR gates, full adders, and multiplexers. First the total number of transitions between the consecutive test patterns is determined. If it is more, then the external circuit generates and inserts test vectors in between the two test patterns. Test vector insertion increases the correlation between the test patterns and reduces dynamic power dissipation. The results prove that the test patterns generated by the proposed ATPG have fewer transitions than the conventional ATPG. Experimental results based on ISCAS’85 and ISCAS’89 benchmark circuits show 38.5% reduction in the average power and 50% reduction in the peak power attained during testing with a small size decoding logic.
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spelling doaj-art-dc671b104ee44ec58e507ead255f48eb2025-08-20T02:21:38ZengWileyThe Scientific World Journal2356-61401537-744X2015-01-01201510.1155/2015/729165729165Ring Counter Based ATPG for Low Transition Test Pattern GenerationV. M. Thoulath Begam0S. Baulkani1Department of ICE, Anna University, Chennai 600 025, IndiaDepartment of ECE, Government College of Engineering, Tirunelveli 627 002, IndiaIn test mode test patterns are applied in random fashion to the circuit under circuit. This increases switching transition between the consecutive test patterns and thereby increases dynamic power dissipation. The proposed ring counter based ATPG reduces vertical switching transitions by inserting test vectors only between the less correlative test patterns. This paper presents the RC-ATPG with an external circuit. The external circuit consists of XOR gates, full adders, and multiplexers. First the total number of transitions between the consecutive test patterns is determined. If it is more, then the external circuit generates and inserts test vectors in between the two test patterns. Test vector insertion increases the correlation between the test patterns and reduces dynamic power dissipation. The results prove that the test patterns generated by the proposed ATPG have fewer transitions than the conventional ATPG. Experimental results based on ISCAS’85 and ISCAS’89 benchmark circuits show 38.5% reduction in the average power and 50% reduction in the peak power attained during testing with a small size decoding logic.http://dx.doi.org/10.1155/2015/729165
spellingShingle V. M. Thoulath Begam
S. Baulkani
Ring Counter Based ATPG for Low Transition Test Pattern Generation
The Scientific World Journal
title Ring Counter Based ATPG for Low Transition Test Pattern Generation
title_full Ring Counter Based ATPG for Low Transition Test Pattern Generation
title_fullStr Ring Counter Based ATPG for Low Transition Test Pattern Generation
title_full_unstemmed Ring Counter Based ATPG for Low Transition Test Pattern Generation
title_short Ring Counter Based ATPG for Low Transition Test Pattern Generation
title_sort ring counter based atpg for low transition test pattern generation
url http://dx.doi.org/10.1155/2015/729165
work_keys_str_mv AT vmthoulathbegam ringcounterbasedatpgforlowtransitiontestpatterngeneration
AT sbaulkani ringcounterbasedatpgforlowtransitiontestpatterngeneration