Show simple item record

dc.contributor.advisorJung-Hoon Chun.en_US
dc.contributor.authorAlSaeed, Abdulelah (Abdulelah Ibrahim)en_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Mechanical Engineering.en_US
dc.date.accessioned2013-03-28T18:09:35Z
dc.date.available2013-03-28T18:09:35Z
dc.date.copyright2012en_US
dc.date.issued2012en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/78161
dc.descriptionThesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.en_US
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (p. 66).en_US
dc.description.abstractHistorically, substrate breakage during the poling process has been responsible for a 2% yield loss for a contract manufacturer specializing in volume production of lead zirconate titatate (PZT) thin film devices. In this research, two major causes of poling breakage were identified. First, stresses along substrate edges make PZT substrates more susceptible to breakage if any sort of mechanical force is present. It was determined that these stresses were caused by differential strains due to incomplete metal layer coverage. Second, the electrical arcing that is frequently taking place during poling sends a mechanical shock wave through the substrate. Electrical arcing is caused by metal overspray during the sputtering process. Poling breakage was experimentally reduced by 70% by redesigning the shadow mask used during sputtering to eliminate any metal overspray.en_US
dc.description.statementofresponsibilityby Abdulelah Alsaeed.en_US
dc.format.extent66 p.en_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectMechanical Engineering.en_US
dc.titleElimination of PZT thin film breakage caused by electric current arcing and intrinsic differential strains during polingen_US
dc.title.alternativeElimination of lead zirconate titatate thin film breakage caused by electric current arcing and intrinsic differential strains during polingen_US
dc.typeThesisen_US
dc.description.degreeM.Eng.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Mechanical Engineering
dc.identifier.oclc829681029en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record