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ICCAD
2000
IEEE

Error Catch and Analysis for Semiconductor Memories Using March Tests

14 years 3 months ago
Error Catch and Analysis for Semiconductor Memories Using March Tests
We present an error catch and analysis (ECA) system for semiconductor memories. The system consists of a test algorithm generator called TAGS, a fault simulator called RAMSES, and an error analyzer (ERA). We use TAGS to generate a set of test algorithms of different lengths and diagnostic resolutions for the memory under test, and use RAMSES to generate the March dictionary for each test algorithm. With the March dictionaries, ERA is able to support March algorithms for easy diagnosis of faulty RAMs. Legacy test algorithms also can be reused. When integrated with a RAM tester, our ECA system can generate RAM bitmaps that are similar to the RAM layout. The bitmaps provide detail information about the error locations and faults causing the errors. Based on the information, diagnosis of the RAM chips for yield and reliability improvement can be done more easily.
Chi-Feng Wu, Chih-Tsun Huang, Chih-Wea Wang, Kuo-L
Added 31 Jul 2010
Updated 31 Jul 2010
Type Conference
Year 2000
Where ICCAD
Authors Chi-Feng Wu, Chih-Tsun Huang, Chih-Wea Wang, Kuo-Liang Cheng, Cheng-Wen Wu
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