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Advances in Polymer Nanocomposites for Electronic Packaging  
Advances in Polymer Nanocomposites for Electronic Packaging
资料类型: PDF文件
关键词: polymer  nanocomposites  electronic  packaging  review  
资料大小: 105K
所属学科: 分子表征
来源: 第六届亚欧研讨会上处理和性能增强聚合物会议文集(2013.6.2-6 武汉)
简介:
Chipsbasedonintegratedcircuits(ICs)havebeenwidelyusedintheelectronicinformationindustry,andtheflip-chiptechnologybasedonunderfillprocessisbecomingamostpromisingpackagingmethodduetothecontinuousdesireforfaster,thinnerandlighterpackages.However,oneofthemainbottlenecksistodesignandmanufactureelectronicpackagingmaterialswithexcellentthermalconductivity(atleastiW/(m.K》,highelectricalinsulation,lowviscosity《20kcpsat250C)andcoefficientofthermalexpansion《20一30)X10-6/oC).Epoxyresinsaregenerallyusedinmanyelectronicpackagingapplications,buttheirlowthermalconductivitypresentsamajordrawback.Thus,highintrinsicthermalconductivesolidfillers,e.g.,metalpowders,carbonfibers,graphite,diamond,ceramicparticlesandwhiskershavebeenincorporatedintoepoxyresins.However,suchcompositeseithercannotmeetthestringentrequirementsforelectricalinsulationorneedveryhighfillerloading(upt070vol%)toachievethenecessarythermalconductivityattheexpenseofprocessingproblemsandreducedmechanicalproperties.Recently,carbonnanotubes(CNTs)andgraphenes(GRs)haveunusuallyhighthermalconductivityowingtothephonon-dominatedballisticheattransport;therefore,theirpolymernanocompositesareexpectedtoprovideabreakthroughintheirapplicationsinthermalmanagement.But,inpractice,theenhancementonthermalconductivityofpolymernanocompositesdoesnotmatchthesepredictionsbecauseofthehighthermalinterfacialresistanceoriginatedfromthestronginterfacialphononscattering.Theincreasedelectricalconductivityalsolimitstheirapplications.Inthispaper,recentadvancesinpolymernanocompositesforelectronicpackagingarereviewed.
作者: Y. W. Mai, H. Y. Liu, X. P. 2hou, C. Chen, Y. Xue, X. L. Xie
上传时间: 2013-06-21 13:48:48
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