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IBM Announces Shipment of Lead-Free C4 Joints

Category:
  • Soldering Products
  • Solderability
  • Solder Joints
  • Solder
  • RoHS
  • Lead Free Solder
  • Indium Corporation

  • Folks,

    IBM annoounced production of its totally lead-free "C4" (controlled collapse chip connection) solder joint, C4NP. This announcement strikes a blow to those that thought the RoHS exemption for "high lead" solder joints would last forever. Many thought that C4 technology could never go lead-free. C4 joints are used extensively in flip chip technology.

    Cheers,

    Dr. Ron

    Note: Thanks to Dr. Dan Baldwin for the image!