一种DRAM内存颗粒的测试方法、设备及介质

By employing spatiotemporal graph evolution and failure coupling inference methods, the problem of continuously depicting error evolution relationships in existing DRAM testing is solved, thereby improving the accuracy of constructing health profiles and determining faults for DRAM memory chips.

CN122112554BActive Publication Date: 2026-07-17SHENZHEN COMOS INTELLIGENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN COMOS INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2026-04-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing DRAM testing methods lack the ability to characterize the continuous evolution of errors in both time and space dimensions when faced with complex failure behaviors that exhibit repeated triggering characteristics and time-evolution patterns.

Method used

The spatiotemporal graph evolution method is used to perform structured evolutionary analysis on the abnormal log set, generate time-related sequences, extract repeated triggering features, and combine the failure distribution set with repeated triggering features through the failure coupling inference method to generate a granular health profile, and conduct targeted verification tests.

Benefits of technology

It improves the ability to analyze complex failure behaviors and the accuracy of fault determination, and can continuously characterize the evolution of errors in the time and space dimensions, guiding targeted verification testing and fault classification.

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Abstract

本发明公开了一种DRAM内存颗粒的测试方法、设备及介质,涉及存储可靠性检测技术领域,包括:采集待测DRAM内存颗粒的阵列结构参数,并对阵列结构参数进行物理地址映射,生成测试控制序列;对测试控制序列进行读写验证,获取异常日志集,采用时空图演化方法,对异常日志集中重复出现的错误进行时间关联分析,生成时间关联序列;通过失效耦合推断方法,将失效分布集与重复触发特征结合并进行综合判定,获取颗粒健康画像,并根据颗粒健康画像执行定向验证测试,构建验证记录数据,对验证记录数据进行归并分析,生成故障判定方案。本发明提升了复杂失效行为解析能力与故障判定准确性。
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