Reliability of sintered materials

The reliability of sintered materials depends on the material, the temperature, and the time it's sintered at. Sintering is a manufacturing process that uses heat or pressure to compact a material into a solid mass without melting it.?

Factors that affect reliability

• Temperature: High temperatures can cause creep, which can impact reliability.?
• Porosities: Porosities created during sintering can change the mechanical properties of the sintered material.?
• Thermal shock: Thermal shock can cause pore size increase and localized densification in sintered joints.?
• Power cycling: Power cycling can cause cracks to develop in sintered joints.?
• Stacking chips in 3D: Stacking chips in 3D can create more heat per unit volume, which can cause thermal migration of metal atoms.?

Reliability testing?

• Thermal aging
• Thermal cycling
• Thermal shock
• Power cycling

Sintered materials

• Silver: Sintered silver is a promising material for automotive power electronics.?
• Copper: Sintered copper is a promising material for die-attach applications.?

Source: https://link.springer.com/article/10.1007/s11664-024-10970-9

https://link.springer.com/article/10.1007/s11664-021-09078-1

1)Brief Review of Nanosilver Sintering: Manufacturing and Reliability

2)Review on Shear Strength and Reliability of Nanoparticle Sintered Joints for Power Electronics Packaging