DocumentCode :
1975214
Title :
A new scan slice encoding scheme with flexible code for test data compression
Author :
Lee, Keun-Soo ; Park, Hyuntae ; Son, Hyeonuk ; Kang, Sungho
Author_Institution :
Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
fYear :
2010
fDate :
22-23 Nov. 2010
Firstpage :
217
Lastpage :
220
Abstract :
As the design for testability (DFT) is essential in the semiconductor manufacturing, the scan-based architecture is widely used to decrease the test complexity of a chip. However, the scan-based architecture requires high test cost such as the test data volume and the test time. In order to alleviate the test cost problem of the scan-based architecture, a lot of test data compression schemes using the scan slice encoding have been presented. In this paper, we propose a new scan slice encoding scheme with flexible code for test data compression. The proposed scheme fully utilizes the flexible code as the control code or the data code. The flexible code provides supplementary encoding mode without additional control code. As a result, the test cost is significantly reduced by the various encoding mode with low test equipment pin overhead. The experiment results based on ISCAS´89 benchmark circuits show that the test data volume and the test time is reduced up to 82% compared with the original data.
Keywords :
circuit complexity; data compression; design for testability; encoding; integrated circuit testing; design for testability; flexible code; low test equipment pin overhead; scan slice encoding scheme; scan-based architecture; semiconductor manufacturing; test complexity; test data compression; test data volume; Benchmark testing; Computer architecture; Decoding; Encoding; Silicon carbide; Test data compression; Very large scale integration; scan chain; slice encoding; test data compression;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
SoC Design Conference (ISOCC), 2010 International
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-8633-5
Type :
conf
DOI :
10.1109/SOCDC.2010.5682934
Filename :
5682934
Link To Document :
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