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Physics of Failure is a technique under the practice of Design for Reliability that leverages the knowledge and understanding of the processes and mechanisms that induce failure to predict reliability and improve product performance. Other definitions of Physics of Failure include: * A science-based approach to reliability that uses modeling and simulation to design-in reliability. It helps to understand system performance and reduce decision risk during design and after the equipment is fielded. This approach models the root causes of failure such as fatigue, fracture, wear, and corrosion. * An approach to the design and development of reliable product to prevent failure, based on the knowledge of root cause failure mechanisms. The Physics of Failure (PoF) concept is based on the understanding of the relationships between requirements and the physical characteristics of the product and their variation in the manufacturing processes, and the reaction of product elements and materials to loads (stressors) and interaction under loads and their influence on the fitness for use with respect to the use conditions and time.〔JEDEC JEP148, April 2004, Reliability Qualification of Semiconductor Devices Based on Physics of Failure Risk and Opportunity Assessment〕 ==Overview== The concept of Physics of Failure, also known as Reliability Physics, involved the use of degradation algorithms that describe how physical, chemical, mechanical, thermal, or electrical mechanisms evolve over time and eventually induce failure. While the concept of Physics of Failure is common in many structural fields,〔http://www.iagtcommittee.com/downloads/08-3-1%20Prakash%20Patnaik%20-%20Life%20Evaluation%20and%20Extension%20Program.pdf, Gas Turbine Materials/Components Life Evaluation & Extension Programs, Dr. Prakash Patnaik, Director SMPL, National Research Council Canada, Institute for Aerospace Research, Ottawa, Canada, 21 October 2008〕 the specific branding evolved from an attempt to better predict the reliability of early generation electronic parts and systems. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「physics of failure」の詳細全文を読む スポンサード リンク
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