Die attach by diffusion Sn-Ag-Sn soldering in high temperature electronics applications

Marcin Myśliwiec , Ryszard Kisiel , Tomasz Fałat


The aim of this work was assessment of application diffusion soldering in die attachment for the electronic devices operating at temperatures above 300 °C. Assembly process was based on the intermetallic compound formation in Sn, Cu and Ag systems at temperatures above Sn melting point. New-created compounds should be thermally stable in high temperatures. The influence of the following parameters: temperature, pressure, process time and application of flux on mechanical strength (shear strength) was investigated. It was concluded that mechanical strength of joints is good and influence of some of the process parameters is stronger than others. The best soldering results were achieved for process were flux was applied, temperature at 395 °C, pressure higher than 10 MPa, and process time longer than 10 minutes. In the next series of experiment the soldering temperature was decreased to the range 270 °C ÷ 300 °C and still good mechanical strength of joint was possible. In diffusion soldering it is necessary to apply no-clean flux. It makes soldering process easier and better mechanical properties were achieved.
Author Marcin Myśliwiec IMiO
Marcin Myśliwiec,,
- The Institute of Microelectronics and Optoelectronics
, Ryszard Kisiel IMiO
Ryszard Kisiel,,
- The Institute of Microelectronics and Optoelectronics
, Tomasz Fałat
Tomasz Fałat,,
Publication size in sheets0.5
Book Blecha Tomas (eds.): Proceedings of 39th International Spring Seminar on Electonics Technology ISSE 2016, vol. CFP 16509-ART, 2016, IEEE Computer Society, ISBN 978-1-5090-1389-0, 534 p.
Keywords in EnglishSoldering, Adhesives, Intermetallic, Compounds, Temperature, Mechanical factors, Substrates
URL http://ieeexplore.ieee.org/document/7563176/
projectThe Development of Design, Processing and Testing Methods of the Electronic Devices and Materials for Microelectronics and Optoelectronics. Project leader: Szczepański Paweł, , Phone: (48 22) 234 58 70, start date 01-01-2015, planned end date 31-12-2015, end date 31-05-2016, IMiO/2015/STATUT/1, Implemented
WEiTI Działalność statutowa
Languageen angielski
Score (nominal)15
ScoreMinisterial score = 15.0, 27-03-2017, BookChapterMatConf
Ministerial score (2013-2016) = 15.0, 27-03-2017, BookChapterMatConf
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