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首页> 外文期刊>Journal of Low Power Electronics >Thermal-Safe Dynamic Test Scheduling Method Using On-Chip Temperature Sensors for 3D MPSoCs
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Thermal-Safe Dynamic Test Scheduling Method Using On-Chip Temperature Sensors for 3D MPSoCs

机译:使用片上温度传感器的3D MPSoC热安全动态测试计划方法

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摘要

System test and online test techniques are aggressively being used in today's SoCs for improved test quality and reliability (e.g., aging/soft-error robustness). With gaining popularity of vertical integration such as 2.5D and 3D, in the semiconductor industry, ensuring thermal safety of SoCs during these test modes poses a challenge. In this paper, we propose a dynamic test scheduling mechanism for system tests and/or online test that uses dynamic feedback from on-chip thermal sensors to control temperature during shift (or scan) and capture, thereby ensuring thermal-safe conditions while applying the test patterns. The proposed technique is a closed loop test application scheme that eliminates the need for separate thermal simulation of test patterns at design stage. The technique also enables granular field-level configuration of thermal limits, so that different units across multiple cores are subjected to customized thermal profiles. Results from implementation of the proposed schemes on a 4-layer, 16-core, 12.8 million gates, OpenSparc S1 processor subsystem are presented.
机译:为了提高测试质量和可靠性(例如,老化/软错误鲁棒性),当今的SoC中积极使用系统测试和在线测试技术。随着垂直集成(例如2.5D和3D)在半导体行业中的普及,在这些测试模式下确保SoC的热安全性提出了挑战。在本文中,我们提出了一种用于系统测试和/或在线测试的动态测试调度机制,该机制使用片上热传感器的动态反馈来控制移位(或扫描)和捕获过程中的温度,从而确保热安全条件同时应用。测试模式。所提出的技术是一种闭环测试应用方案,在设计阶段无需对测试图案进行单独的热仿真。该技术还可以对热限制进行细粒度的现场级配置,以便跨多个磁芯的不同单元经受定制的热分布。给出了在4层,16核,1280万门,OpenSparc S1处理器子系统上实施建议的方案的结果。

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