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BGA-type SMD


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Ball joint strength

Solder joint reliability: Ball shear strength
Solder joint reliability: Ball pull strength

  • Ball land diameter: 0.4 mm
  • Ball diameter: φ0.5 mm
  • Land structure: Cu/Ni/Au

Temperature cycle life

Solder joint reliability: Temperature cycle life(15×15/385-pin FPBGA/0.5 mm pitch)
Solder joint reliability: Temperature cycle life(15×15/176-pin FPBGA/0.8 mm pitch)

Solder joint reliability: Temperature cycle life(16×16/303-pin FPBGA/0.65 mm pitch)
Solder joint reliability: Temperature cycle life(27×27/256-pin PBGA/1.27 mm pitch)

  • Test conditions: TA = -40 to 125°C/10 minutes each (min.)
  • Soldering temperature: 250°C/Sn-Ag-Cu paste, 235°C/Sn-Pb paste
  • Failure definition: 20% increase in nominal resistance