Silver Sintering on PCBs – Methods and Reliability

Conference: PCIM Europe 2022 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/10/2022 - 05/12/2022 at Nürnberg, Germany

doi:10.30420/565822084

Proceedings: PCIM Europe 2022

Pages: 8Language: englishTyp: PDF

Authors:
Dresel, Fabian; Mueller, Jonas; Leib, Juergen; Schletz, Andreas (Fraunhofer Institute for Integrated Systems and Device Technology IISB, Germany)

Abstract:
Conventional joining technologies like soldering or glueing are limited for the assembly of power semiconductors on PCB. This work describes two concepts for sintering of power semiconductors onto PCB. The principles of selective silver sintering and sinter paste jetting are discussed. Samples are fabricated utilizing both methods and power cycling tests are carried out to assess their reliability. Especially the jet printed samples show promising reliability results. No effect of the temperature cycles on surrounding components was observed.