In this paper, we have investigated a laser-assistedfast nano-Ag sintering process for die attach in power electronicapplications. The effects of laser power, irradiation time, and loadon microstructure and shear performance of the bonded samplesare presented. Moreover, samples sintered by a hotplate werealso studied as a comparison. The results indicate that the dieattachprocess using the nano-Ag material can be realized within1 min in the laser-assisted sintering method. In general, bettershear strength was obtained with increasing laser power, irradiationtime, and load. The shear strength of samples irradiatedby 2–5 min of laser beam was comparable to that of the samplessintered on the hotplate for 80 min.
|Number of pages||8|
|Journal||IEEE Transactions on Components, Packaging and Manufacturing Technology|
|Early online date||10 May 2017|
|Publication status||Published - Jul 2017|
- Laser sintering