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dc.contributor.authorChang, Wei-Yuanen_US
dc.contributor.authorChung, Hau-Tingen_US
dc.contributor.authorChen, Yi-Changen_US
dc.contributor.authorLeu, Jihperngen_US
dc.date.accessioned2019-04-02T05:58:09Z-
dc.date.available2019-04-02T05:58:09Z-
dc.date.issued2018-11-01en_US
dc.identifier.issn1071-1023en_US
dc.identifier.urihttp://dx.doi.org/10.1116/1.5063294en_US
dc.identifier.urihttp://hdl.handle.net/11536/148573-
dc.description.abstractLow-k dielectric silicon carbonitride (SiCxNy) films are deposited by plasma-enhanced chemical vapor deposition using a carbon-rich silazane precursor, N-methyl-aza-2,2,4-trimethylsilacyclopentane (SiC7NH17), at 100 degrees C. The post-treatments of SiCxNy films are carried out by thermal annealing and a broadband UV-assisted thermal annealing (UV-annealing) at 400 degrees C for 5 min. Compared to the thermal annealing treatment, UV-annealing can improve both dielectric and mechanical properties of low-k SiCxNy films. Under thermal annealing, SiCxNy films show great thermal stability, but little structural change. In contrast, upon UV-annealing, most of the Si-H and N-H bonds are broken up, which induces more Si-N cross-linking and converts Si-C matrix into Si-N matrix. The ethylene bridges in Si-(CH2)(2)-Si also remain intact, but the unbridged hydrocarbons in Si-(CH2)(2)-N and Si-CH2-CH3 bonds decompose completely during the UV-annealing process. These account for the reduced dielectric constant to k = 3.2 from 3.6 and a 21% enhancement of Young's modulus to 7.4 GPa in the SiCxNy films after UV-annealing. Broadband UV-annealing shows promise as a post-treatment method for enhancing the properties of low-k dielectric barrier, SiCxNy films. Published by the AVS.en_US
dc.language.isoen_USen_US
dc.titleBroadband UV-assisted thermal annealing of low-k silicon carbonitride films using a C-rich silazane precursoren_US
dc.typeArticleen_US
dc.identifier.doi10.1116/1.5063294en_US
dc.identifier.journalJOURNAL OF VACUUM SCIENCE & TECHNOLOGY Ben_US
dc.citation.volume36en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000452439100031en_US
dc.citation.woscount0en_US
Appears in Collections:Articles