A case study in root cause defect analysis marek leszak dewayne e perry dieter stoll lucent technologies electrical and computer engineering lucent technologies the university of texas at austin. The cause mapping method is an extremely effective systems-thinking approach to root cause analysis that utilizes visual communication to improve the way people collect, analyze, and use information to solve problems. Solving manufacturing problems root cause analysis case study 11 references • the most critical step of root cause analysis is defect characterization.
How to conduct a failure analysis, stages of analysis, proper techniques for sample removal, destructive and non-destructive techniques, primary causes and modes of failure, and specific case studies will be discussed. We present the experimental design of our case study discussing the novel approach we have taken to defect and root cause classification and the mechanisms we have used for randomly selecting the mrs to analyze and collecting the analyses via a web interface. The defect patterns we identified from the wafers were then correlated back to the process parameters for root cause analysis the resulting improvements ultimately impact profitability in addition to this specific use case, data science techniques can be applied to analyze big data arising from process monitoring, yield enhancement, or.
Recently published articles from case studies in engineering failure analysis root cause analysis (rca) of fractured astm a53 carbon steel pipe at oil & gas. The case study is formulated in a way to provide a basis for software development organizations that aim to conduct defect analysis and obtain meaningful results all stages of the research and the case study are explained in detail and the efforts spent are given. This case study will detail a real nonconformance investigation using the root cause analysis (rca) the quality assurance of a pharmaceutical company has detected a failure during the test audit after a manufactured lot inspection. Necessary to reduce it as much as possible by appropriate analysis of the defects which includes the root cause analysis so that actual reasons behind occurring the defects can be find out to make the corrective action. A re-examination of failure analysis and root cause determination case studies in materials failure analysis a full failure analysis found no defect in the.
The analyze phase used root cause analysis and failure mode and effect analysis to identify several process variables, including pattern design and maintenance, worker training, and the proportions of scrap and coal inputted into the molds, that were increasing the frequency of the major defects. This study investigates the sinking of the titanic our case studies demonstrate how root cause analysis applies to a variety of problematic scenarios join us for the next cause mapping root cause analysis public workshop on oct 16-18 in dallas tx. Defect detection and prevention based on three case studies and studied about the defect detection and defect prevention strategies adopted in these three projects only. Improve first-pass yield, reduce scrap, and identify the root cause of quality issues reduce scrap identify all of the defect types that have an impact on production quality. One of the techniques for analyzing defects is the root cause analysis (rca) a case study is conducted in one of the leading, medium sized software companies of turkey by utilizing the rca method.
Defects in lifting-eyes: repair and root cause analysis case study lifting-eyes, known as pad eyes, were welded into the top corners of a module for lifting the module on to an offshore platform. Introduction: rca (root cause analysis) is a mechanism of analyzing the defects, to identify its cause we brainstorm, read and dig the defect to identify whether the defect was due to testing miss, development miss or was a requirement or designs miss. Iphone defects root cause analysis there are several tools that can aid in the process of root cause analysis basically, it is a simple approach of asking why several times until you arrive at an atomic but actionable item. The defect root-cause tree below provides some examples about what types of defects are classified into each category: this classification works whether a defect is found in manufacturing or in the field, and will help you initiate root-cause analysis in a more collaborative manner.
Root cause analysis of defects in automobile fuel pumps: a case study saurav adhikari nilesh sachdeva the study well illustrates the use of 7 qc tools.
Cognitive approach to root cause analysis for improving quality of life: a case study for it industry the goal is to identify the root cause of defect and. The root cause analysis has been one of the best methods utilized by industries to enhance the quality of the product and to prevent the defects this paper intends to exhibit the exact application of root. Read these case studies and you can learn how sologic facilitators have worked with organisations using the root cause analysis process to engage employees, solve problems, reduce costs, standardise practices, innovate and ultimately gain competitive advantage.