학술논문

Hierarchical Memory Diagnosis
Document Type
Conference
Source
2022 IEEE European Test Symposium (ETS) Test Symposium (ETS), 2022 IEEE European. :1-2 May, 2022
Subject
Components, Circuits, Devices and Systems
Memory management
Time to market
Europe
Resists
Memory
Diagnosis
Fault
Test
Algorithm
Language
ISSN
1558-1780
Abstract
High-quality memory diagnosis methodologies are critical enablers for scaled memory devices as they reduce time to market and provide valuable information regarding test escapes and customer returns. This paper presents an efficient Hierarchical Memory Diagnosis (HMD) approach that accurately diagnoses faults in the entire memory. Faults are diagnosed hierarchically; first, their location, then their nature (i.e., static or dynamic), and finally, their functional fault model. The HMD approach leads to a more accurate diagnostic, enabling the precise identification of yield loss causes.