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Dynamic Memory Failure Pattern Dictionary for Memory Diagnosis

Dynamic Memory Failure Pattern Dictionary for Memory Diagnosis. Laboratory of Reliable Computing Department of Electrical Engineering National Tsing Hua University Hsinchu , Taiwan. Dynamic Defect Dictionary. Traditional Memory Failure Pattern Considers single defect

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Dynamic Memory Failure Pattern Dictionary for Memory Diagnosis

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  1. Dynamic Memory Failure Pattern Dictionary for Memory Diagnosis Laboratory of Reliable Computing Department of Electrical Engineering National Tsing Hua University Hsinchu, Taiwan

  2. Dynamic Defect Dictionary • Traditional Memory Failure Pattern • Considers single defect • Systematic Failure Analysis • Considers systematic defects • Considers Multiple-Defect Failure-Pattern (MDFP) • Critical in real industrial test data • Maybe caused by process variation • Based on Single-Defect Failure-Pattern (SDFP) • Construct MDFP by SDFPs

  3. Defect Dictionary SAF1 SAF0 RandomFault Ref: Wu, et al., ITC, 2003

  4. Defect Dictionary SAF1 SAF0 RandomFault Ref: Wu, et al., ITC, 2003

  5. Defect Dictionary SAF1 SAF0 RandomFault Ref: Wu, et al., ITC, 2003

  6. Constraint • New failure pattern • Defect suspects g1/2/3/4 + g1/2/3/4 BL0 BL1 BL0 BL1 h1/2 + h1/2 WL0 VDD VDD i1/2/3/4 + i1/2/3/4 j1/2/3/4 + j1/2/3/4 WL1 VDD VDD

  7. Systematic Failure • New failure pattern • Defect suspects ‧‧‧‧‧‧ j1/2/3/4+‧‧‧‧+j1/2/3/4 BL254 BL0 BL254 BL0 BL1 BL1 BL5 WL0 WL0 ‧‧‧‧‧‧ g1/2/3/4+‧‧‧‧+g1/2/3/4 VDD VDD VDD VDD BL255 WL1 WL1 VDD VDD VDD VDD ‧‧‧‧‧‧

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