The pressureless sintering of micron silver paste for electrical connections

Abstract In this paper, we explore the pressureless sintering of spherical micron silver paste for electrical connections. The micron silver paste was sintered under different temperature in the range of 200–300 °C in air. The experimental results show that the density, shear strength, area ratio of fracture surface, and thermal/electric properties of sintered Ag joint increased with increasing temperature. The sample sintered at 280 °C have strong bonding strength, and excellent electrical/thermal performance (comparable with nano silver and even higher than Sn paste). Our protocol will provide beneficial reference for the application of sintering micron Ag paste in electrical connections.