Bad wordline/array detection in memory

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United States of America Patent

PATENT NO 9065481
APP PUB NO 20130339823A1
SERIAL NO

13747842

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A technique for error detection is provided. A controller is configured to detect errors by using error correcting code (ECC), and a cache includes independent ECC words for storing data. The controller detects the errors in the ECC words for a wordline that is read. The controller detects a first error in a first ECC word on the wordline and a second error in a second ECC word on the wordline. The controller determines that the wordline is a failing wordline based on detecting the first error in the first ECC word and the second error in the second ECC word.

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Patent Owner(s)

  • GLOBALFOUNDRIES INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Meaney, Patrick J Poughkeepsie, US 124 1375
O'Neill, Arthur J Poughkeepsie, US 28 138
Strait, Gary E Poughkeepsie, US 24 314

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