Lead-Free Board Surface Finishes

  • Hugh Roberts
  • Kuldip Johal

In the move to lead-free electronics, one of the main aspects of printed wiring board (PWB) fabrication that has received attention is the surface finish. The surface finish of the PWB represents the last major step in fabrication before component assembly and, as such, represents the interface between the external board circuitry and the bonding medium (i.e. solder). The use of lead-free solders requires higher assembly temperatures and places increased demands on the surface finish if it is to survive multiple reflow cycles. In PWB fabrication, the surface finish can serve several interrelated functions, including:


Solder Joint Electroless Nickel Printed Wiring Board Electroless Nickel Immersion Gold Organic Solderability Preservative 
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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Hugh Roberts
    • 1
  • Kuldip Johal
    • 1
  1. 1.Atotech USA Inc.Rock HillUSA

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