BGA

• Advantages

  • Small size
  • High speed
  • Easy interfacing to PCB
  • Hundreds of power/gnd pins
  • The new favorite...

• Disadvantages

  • CTE to PCB (next slide)
  • Ceramic BGA has...
    • High dielectric constant (~9)
    • High resistance wires
  • PCB BGA has...
    • Poor CTE to IC match

Source: IEEE Spectrum, 7/99

DIP BGA

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