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器件工艺可靠性测试数据比较方法的研究 被引量:1
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作者 王擎雷 周柯 杨斯元 《半导体技术》 CAS CSCD 北大核心 2010年第4期378-382,共5页
热载流子注入(hot carrier injection,HCI)效应和负偏压温度不稳定性(negative biastemperature instability,NBTI)是集成电路中重要的前段器件工艺可靠性测试项目。通过引入工业统计学,详细讨论了在不同工艺制造情况或测试环境下HCI/N... 热载流子注入(hot carrier injection,HCI)效应和负偏压温度不稳定性(negative biastemperature instability,NBTI)是集成电路中重要的前段器件工艺可靠性测试项目。通过引入工业统计学,详细讨论了在不同工艺制造情况或测试环境下HCI/NBTI效应可靠性差异的比较方法。这些对于HCI/NBTI测试比较方法的总结,有利于合理分析工艺可靠性测试结果,协助晶圆生产部门找出失效机理,不断改善工艺制程并保持工艺的稳定性。 展开更多
关键词 HCI/NBTI 寿命 置信区间 管控图 显著性差异
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SPC统计过程控制在质量管理中的应用 被引量:5
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作者 王丹 吴伟 《数字通信世界》 2017年第6期16-19,共4页
本文分析研究了SPC的统计原理以及使用方法,结合本公司的产品——高精度SMC卫星天线反射面的尺寸管控,着重介绍了生产过程中尺寸(-R Chart)控制图的建立技术,阐述了SPC统计过程在质量管控中的作用。
关键词 SPC 管控图 过程控制
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Berth Management in Container Terminals: Quality of Service
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作者 Lopez-Ansorena Inigo Camarero-Orive Alberto Gonzalez-Cancelas Nicoletta Camarero-Orive Alfonso 《Journal of Shipping and Ocean Engineering》 2012年第6期340-362,共23页
This paper empirically evaluates container terminal service attributes. The methodology proposed focuses on statistical control, Based on the concept of service segmentation, the authors employed control charts to cla... This paper empirically evaluates container terminal service attributes. The methodology proposed focuses on statistical control, Based on the concept of service segmentation, the authors employed control charts to classify container terminal services. The purpose of control charts is to allow simple detection of events that are indicative of actual process change. This simple decision can be difficult where the process characteristic is continuously varying, the control chart provides statistically objective criteria of change. When change is detected and considered good its cause should be identified and possibly become the new way of working, where the change is bad then its cause should be identified and eliminated. Both theoretical and practical implications of the research findings are discussed in this paper. 展开更多
关键词 Container terminals quality of service control chart.
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Development of an Expert Model to Assess Falls from Height Hazards in Construction Sites
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作者 Carlo Argiolas Alessandro Carbonari Emanuela Quaquero 《Journal of Civil Engineering and Architecture》 2014年第5期517-528,共12页
This paper reports on the current state of an ongoing research project which is aimed at implementing intelligent models for hardly predictable hazard scenarios identification in construction sites. As any programmati... This paper reports on the current state of an ongoing research project which is aimed at implementing intelligent models for hardly predictable hazard scenarios identification in construction sites. As any programmatic actions cannot deal with the unpredictable nature of many risk dynamics, an attempt to improve the current approach for safety management in the construction industry will be presented in this paper. To this aim, the features offered by Bayesian networks have been exploited. The present research has led to the definition of a probabilistic model using elicitation techniques from subjective knowledge. This model, which might be meant as a reliable knowledge map about accident dynamics, showed that a relevant part of occurrences fall in the "hardly predictable hazards" category, which cannot be warded off by programmatic safety measures. Hence, more effort turned out to be needed in order to manage those hardly predictable hazardous scenarios. Consequently, further developments of this research project will focus on a real time monitoring system for the identification of unpredictable hazardous events in construction. 展开更多
关键词 Health and safety management risk assessment Bayesian networks job sites.
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