NiPdAu
Plating Thickness
 
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Copper (Cu) leadframe for Open cavity (air cavity) QFN semiconductor packages.

Check chart below for available plating thicknesses.

About G3 (NiAu) and G4 (NiPdAu) plating thickness:
  • G3 : Rich Gold plating. Excellent wire bondability. Good reflow SMT. Occasionally subject to black pad phenomena.
  • G4 : Gold plating looks richer. Excellent wire bondability. Good reflow SMT. Seldom subject to black pad phenomena.

  • About G5, G6 and G7 End of Life (EOL):
  • G5 : Gold plating looks richer. Excellent wire bondability. Good reflow SMT. Occasionally subject to black pad phenomena.
  • G6: Thin Gold plating appears silver in color. Excellent bondability. Superior reflow SMT solderability.
  • G7: Gold plating appears gold in color. Excellent bondability. Superior reflow SMT solderability.
  •  
    Top Cavity - Click to Enlarge

    G3 Series
    Thick Gold
  • Ni 2.5 ~ 7.6µm
  • Au 1.0 ~ 2.0µm
  • Top Cavity - Click to Enlarge

    G4 Series
    Thick Gold
  • Ni 4.0 ~ 6.0µm
  • Pd 0.05 ~ 0.10µm
  • Au 0.30 ~ 0.50µm
  • Top Cavity - Click to Enlarge

    G5 Series
    Medium Gold
  • Ni 1.27 ~ 4.6µm
  • Pd 0.15 ~ 0.50µm
  • Au 0.10 ~ 0.20µm

  •  
    Top Cavity - Click to Enlarge

    G7 Series
    Thin Gold
  • Ni 0.50 ~ 2.0µm
  • Pd 0.02 ~ 0.15µm
  • Au 0.025 ~ 0.125µm

  •  
    Top Cavity - Click to Enlarge

    G6 Series
    Very Thin Gold
  • Ni 0.50 ~ 2.00µm
  • Pd 0.02 ~ 0.15µm
  • Au 0.003 ~ 0.05µm
  •  
    Table 1 - Lead Frame Plating Thickness
    Pins 8L
    DFN
    10L
    DFN
    8L
    QFN
    12L 12L 12L 12L 16L 16L 16L 20L 20L 20L 20L
    Size 3mm 3mm 3mm 3mm 3mm 4mm 4mm 3mm 4mm 5mm 3mm 4mm 5mm 5mm
    Pitch 0.65mm 0.5mm 0.65mm 0.5mm 0.65mm 0.65mm 0.8mm 0.5mm 0.65mm 0.8mm 0.4mm 0.5mm 0.65mm 0.8mm
    Plating G7 G7 G5 G3
    G4
    G6
    G3
    G4
    G7
    G7 G7 G3 G3
    G4
    G5
    G3
    G4
    G7
    G7 G3
    G4
    G5
    G3
    G4
    G7
    G7
    Back to M-QFN.
     
     
    Table 2 -Lead Frame Plating Thickness
    Pins 24L 24L 28L 28L 32L 36L 40L 40L 44L 48L 48L 56L 64L 68L 72L 80L
    Size 4mm 5mm 4mm 5mm 5mm 6mm 5mm 6mm 7mm 6mm 7mm 8mm 9mm 10mm 10mm 12mm
    Pitch 0.5mm 0.65mm 0.4mm 0.5mm 0.5mm 0.5mm 0.4mm 0.5mm 0.5mm 0.4mm 0.5mm 0.5mm 0.5mm 0.5mm 0.5mm 0.5mm
    Plating G3
    G4
    G6
    G3
    G4
    G7
    G3
    G4
    G7
    G3
    G4
    G7
    G3
    G4
    G3
    G4
    G7
    G3
    G4
    G5
    G3
    G4
    G7
    G3
    G4
    G7
    G3
    G4
    G5
    G3
    G4
    G3
    G4
    G7
    G3
    G4
    --
    G7
    G3
    G4
    G6
    G3
    G4
    G7
    Back to M-QFN.
     
     
    Install Solidworks e-Drawings software Version 10.
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