Preparation, characterization and properties of alumina-lithium aluminium borosilicate glass based LTCC tapes
|Author:||Induja, I. J.1; Varma, M. R.1; Sebastian, M. T.2|
1Materials Science & Technology Division, National Institute for Interdisciplinary Science & Technology, Thiruvananthapuram 695019, India
2Microelectronics Research Unit, Faculty of Information Technology & Electrical Engineering, University of Oulu, P.O. Box 4500, 90014 Oulu, Finland
|Online Access:||PDF Full Text (PDF, 3.5 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2019052016185
|Publish Date:|| 2019-05-20
A new low temperature cofired ceramic (LTCC) tape based on 40 wt% Al₂O₃–60 wt% LABS glass (40Li₂CO₃:10Al₂O₃:30B₂O₃:20SiO₂) has been developed. The dielectric properties of the LABS glass are studied. The structural, dielectric, thermal as well as the chemical compatibility with Ag electrode of the bulk Al₂O₃–LABS sintered at 800 °C are investigated. The room temperature thermal conductivity and CTE of the bulk are 3.80 Wm⁻¹ K⁻¹ and 5.1 ppm/°C respectively. The Al₂O₃–LABS slurry which has a pseudoplastic nature is made into thin sheets using tape casting technique. The green tape has a surface roughness of 293 nm and tensile strength 0.2 MPa. The Al₂O₃–LABS based LTCC tapes are sintered at 775 °C has εᵣ of 4.70 with tanδ 0.005 and τε of +412 ppm/°C at 5 GHz. The results suggest that the Al₂O₃–LABS based LTCC tapes is a possible candidate for LTCC device applications.
Journal of materials science. Materials in electronics
|Pages:||14655 - 14663|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
216 Materials engineering
© Springer Science+Business Media, LLC 2017. This is a post-peer-review, pre-copyedit version of an article published in Journal of Materials Science: Materials in Electronics Vol. 28 Issue 19. The final authenticated version is available online at: https://doi.org/10.1007/s10854-017-7330-7.