Ensemble Modelling of in situ Feature Variables for Printed Electronics Manufacturing with in situ Process Control Potential

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dc.contributor.authorMohan, Karuniyaen
dc.contributor.committeechairJin, Ranen
dc.contributor.committeememberJohnson, Blakeen
dc.contributor.committeememberSarin, Subhash C.en
dc.contributor.departmentIndustrial and Systems Engineeringen
dc.date.accessioned2018-09-02T06:00:27Zen
dc.date.available2018-09-02T06:00:27Zen
dc.date.issued2017-03-10en
dc.description.abstractAerosol JetĀ® Printing (AJP) is a direct-write based additive manufacturing process that is capable of printing electronics with fine features and various materials. It eliminates the complex masking process in traditional semiconductor manufacturing, thus enables flexible electronics design and reduces manufacturing cost. However, the quality control of AJP processes is still a challenging problem, primarily due to the lack of understanding of the potential root causes of the quality issues. There is a complex interaction among process setting variables, in situ feature variables, and quality variables in AJP processes. In this research, an ensemble model strategy is proposed to quantify the effect of the process setting variables on the in situ feature variables, and the effect of the in situ feature variables on quality variables in a two-level hierarchical way. By identifying significant in situ feature variables as responses for the process setting variables, as well as predictors for product quality in a joint estimation problem, the proposed models have a hierarchical variable relationship to enable in situ process control for variation reduction and defect mitigation. A real case study is investigated to demonstrate the advantages of the proposed method.en
dc.description.degreeMaster of Scienceen
dc.format.mediumETDen
dc.identifier.othervt_gsexam:9987en
dc.identifier.urihttp://hdl.handle.net/10919/84947en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAerosol JetĀ® Printingen
dc.subjectMicroscopic Imagesen
dc.subjectPrinted Electronicsen
dc.subjectProcess Modelen
dc.subjectQualityen
dc.titleEnsemble Modelling of in situ Feature Variables for Printed Electronics Manufacturing with in situ Process Control Potentialen
dc.typeThesisen
thesis.degree.disciplineIndustrial and Systems Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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