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Thermo-Mechanical Measurement Approach of Ag-sintered Joints for Power Electronics

 
: Metasch, René; Meier, Karsten; Röllig, Mike

:

TU Dresden, Institut für Aufbau- und Verbindungstechnik der Elektronik -IAVT-; Institute of Electrical and Electronics Engineers -IEEE-; International Microelectronics and Packaging Society -IMAPS-:
7th Electronic System-Integration Technology Conference, ESTC 2018. Proceedings : 18th to 21st Sept. 2018, Dresden, Germany
Piscataway, NJ: IEEE, 2018
ISBN: 978-1-5386-6814-6
ISBN: 978-1-5386-6813-9
ISBN: 978-1-5386-6815-3
6 S.
Electronic System-Integration Technology Conference (ESTC) <7, 2018, Dresden>
Englisch
Konferenzbeitrag
Fraunhofer IKTS ()
silver-sinter; Ag-sinter; thermal-mechanical; characterization; process dependency; porosity

Abstract
The authors have realized a measurement approach for the determination of thermal-mechanical characteristics of real silver-sinter joints under shear load conditions. The paper present the developed and optimized measurement setup and the manufacturing process of the lap shear based specimen with a comparatively very high stand-off of one Ag-sinter joint. Further the performed characterization routine which allows the determination of time, temperature and process depended mechanical characteristics. With the successfully produced specimen samples a first cyclic deformation experiment were carried out. For this purpose one sample were loaded with constant deformation speeds between 0.01 μm/s and 1 μm/s to amplitudes of ±3 μm. With increasing temperatures up to 200 °C the measured forces amplitudes decrease and the force-displacement-hystereses show an increasingly ductile deformation behaviour.

: http://publica.fraunhofer.de/dokumente/N-531768.html