[G] Solid process/ Solid and welding process

[385] Effect of Initial Defect on Fatigue Crack Initiation Life of Sintered Ag Nanoparticles under Equibiaxial Thermal Stress

*Rion ISHII¹, Yoshiharu KARIYA², Koji SASAKI³ (1. Graduate School of Shibaura Institute of Technology, 2. Department of Materials Science and Engineering, Shibaura Institute of Technology, 3. NAMICS Corporation)

Keywords:Sintered Ag nanoparticles、Equibiaxial stress、High-speed thermal fatigue test、Fatigue crack initiation life、Die attach joint

ダイアタッチであるAgナノ粒子焼結体に等2軸応力を負荷できるスーパーインバー接合体試験片を用いた高速温度サイクル試験を行い，初期欠陥がおよぼす疲労き裂発生寿命への影響を調査した．