Effects of the functional groups of nonconductive films (NCFs) on material properties and reliability of NCF flip-chip-on-organic boards

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dc.contributor.authorChung, Chang-Kyuko
dc.contributor.authorKwon, Woon-Seongko
dc.contributor.authorJang, Kyung-Woonko
dc.contributor.authorPark, Jin-Flyoungko
dc.contributor.authorLee, Soon-Bokko
dc.contributor.authorPaik, Kyung-Wookko
dc.date.accessioned2010-06-14T23:37:54Z-
dc.date.available2010-06-14T23:37:54Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2007-
dc.identifier.citationIEEE TRANSACTIONS ON COMPONENTS AND PACKAGING TECHNOLOGIES, v.30, no.3, pp.464 - 471-
dc.identifier.issn1521-3331-
dc.identifier.urihttp://hdl.handle.net/10203/18848-
dc.description.abstractNonconductive films (NCFs) are one of the polymer interconnect materials for flip-chip interconnection. NCFs containing no conductive particles play several roles such as adhesion, insulation, and underfilling at the same time. The most important issue of NCF flip-chip-on-board (FCOB) assemblies is thermal cycling reliability. Thermomechanical properties of cured NCFs, such as glass transition temperature (Tg), storage modulus (E'), and coefficient of thermal expansion (CTE), significantly affect the thermal cycling reliability of NCF FCOB assemblies. I this paper, the improvement of thermomechanical properties of NCFs was investigated by controlling the number of functional groups of NCF resins. To compare the reliability of conventional and modified NCF FCOB assemblies after thermal cycling test, electrical analysis and scanning acoustic microscopy investigation were performed. Thermal deformations of NCF FCOB assemblies under thermal cycling environment were also investigated, and quantitatively compared using high sensitivity Twyman-Green interferometry and portable engineering Moire interferometry. According to these results, the functional groups of NCFs have significant effects on thermomechanical properties of cured NCFs, thermal deformation, and thermal cycling reliability of NCF-bonded FCOB assemblies. As a result, the functionality modified NCF FCOB assemblies showed significantly enhanced reliability compared conventional NCFs in thermal cycling test.-
dc.description.sponsorshipThis work was supported by the Center for Electronic Packaging Materials (ERC) of MOST/KOSEF.en
dc.languageEnglish-
dc.language.isoen_USen
dc.publisherInstitute of Electrical and Electronics Engineers Inc.-
dc.titleEffects of the functional groups of nonconductive films (NCFs) on material properties and reliability of NCF flip-chip-on-organic boards-
dc.typeArticle-
dc.identifier.wosid000249209800014-
dc.identifier.scopusid2-s2.0-65449128459-
dc.type.rimsART-
dc.citation.volume30-
dc.citation.issue3-
dc.citation.beginningpage464-
dc.citation.endingpage471-
dc.citation.publicationnameIEEE TRANSACTIONS ON COMPONENTS AND PACKAGING TECHNOLOGIES-
dc.identifier.doi10.1109/TCAPT.2007.898738-
dc.contributor.localauthorLee, Soon-Bok-
dc.contributor.localauthorPaik, Kyung-Wook-
dc.contributor.nonIdAuthorChung, Chang-Kyu-
dc.contributor.nonIdAuthorKwon, Woon-Seong-
dc.contributor.nonIdAuthorJang, Kyung-Woon-
dc.contributor.nonIdAuthorPark, Jin-Flyoung-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorinterfacial delamination-
dc.subject.keywordAuthornonconductive films (NCFs)-
dc.subject.keywordAuthorshear strain-
dc.subject.keywordAuthorthermal cycling reliability-
dc.subject.keywordAuthorthermal deformation-
dc.subject.keywordAuthorthermomechanical properties-
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