Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/80088
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dc.contributor.authorTan, Chuan Sengen
dc.contributor.authorFan, J.en
dc.contributor.authorTu, L. C.en
dc.date.accessioned2014-06-11T07:53:55Zen
dc.date.accessioned2019-12-06T13:40:29Z-
dc.date.available2014-06-11T07:53:55Zen
dc.date.available2019-12-06T13:40:29Z-
dc.date.copyright2014en
dc.date.issued2014en
dc.identifier.citationFan, J., Tu, L. C., & Tan, C. S. (2014). High-κ Al2O3 material in low temperature wafer-level bonding for 3D integration application. AIP Advances, 4(3), 031311-.en
dc.identifier.issn2158-3226en
dc.identifier.urihttps://hdl.handle.net/10356/80088-
dc.description.abstractThis work systematically investigated a high-κ Al 2O3 material for low temperature wafer-level bonding for potential applications in 3D microsystems. A clean Si wafer with an Al 2O3 layer thickness of 50 nm was applied as our experimental approach. Bonding was initiated in a clean room ambient after surface activation, followed by annealing under inert ambient conditions at 300 °C for 3 h. The investigation consisted of three parts: a mechanical support study using the four-point bending method, hermeticity measurements using the helium bomb test, and thermal conductivity analysis for potential heterogeneous bonding. Compared with samples bonded using a conventional oxide bonding material (SiO2), a higher interfacial adhesion energy (∼11.93 J/m2) and a lower helium leak rate (∼6.84 × 10−10 atm.cm3/sec) were detected for samples bonded using Al 2O3. More importantly, due to the excellent thermal conductivity performance of Al 2O3, this technology can be used in heterogeneous direct bonding, which has potential applications for enhancing the performance of Si photonic integrated devices.en
dc.language.isoenen
dc.relation.ispartofseriesAIP advancesen
dc.rights© 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.en
dc.subjectDRNTU::Engineering::Electrical and electronic engineeringen
dc.titleHigh-κ Al2O3 material in low temperature wafer-level bonding for 3D integration applicationen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.identifier.doi10.1063/1.4867089en
dc.description.versionPublished versionen
item.grantfulltextopen-
item.fulltextWith Fulltext-
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