@ARTICLE{Choi_Woo_Lim_Characteristics_2019, author={Choi, Woo Lim and Lee, Jong-Hyun}, volume={vol. 64}, number={No 2}, journal={Archives of Metallurgy and Materials}, pages={507-512}, howpublished={online}, year={2019}, publisher={Institute of Metallurgy and Materials Science of Polish Academy of Sciences}, publisher={Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences}, abstract={Ag and Cu powders were mechanically alloyed using high-energy planetary milling to evaluate the sinter-bonding characteristics of a die-attach paste containing particles of these two representative conductive metals mixed at atomic scale. This resulted in the formation of completely alloyed Ag-40Cu particles of 9.5 µm average size after 3 h. The alloyed particles exhibited antioxidation properties during heating to 225°C in air; the combination of high pressure and long bonding time at 225°C enhanced the shear strength of the chip bonded using the particles. Consequently, the chips sinter-bonded at 225°C and 10 MPa for 10 min exhibited a sufficient strength of 15.3 MPa. However, an increase in bonding temperature to 250°C was detrimental to the strength, due to excessive oxidation of the alloyed particles. The mechanically alloyed phase in the particle began to decompose into nanoscale Ag and Cu phases above a bonding temperature of 225°C during heating.}, type={Artykuły / Articles}, title={Characteristics of Die-Attach Method by Sinter Bonding Using AG-40CU Mechanically Alloyed Particles}, URL={http://ochroma.man.poznan.pl/Content/111308/PDF/AMM-2019-2-11-Lee.pdf}, doi={10.24425/amm.2019.127568}, keywords={Mechanical alloying, Ag-Cu, Die-attach, Sinter bonding, Shear strength}, }