Unmanned Systems News

Article: PCB Surface Finishes for High-Level Applications

Published: 13 Feb 2020 by

San Francisco Circuits soft gold PCB finish

San Francisco Circuits (SFC), a provider of PCB (printed circuit board) fabrication, assembly and test services for unmanned systems and robotic platforms, has released an in-depth article outlining the critical information needed to select the right surface finish for particular PCB applications.

Read the full article on San Francisco Circuits’ website

A surface finish is essential for making a reliable connection between the PCB and its electronic components, providing a solderable surface for attaching components to the PCB, as well as protecting any exposed copper from oxidizing.

The article details the advantages, disadvantages, properties and common applications for the following PCB surface finish technologies:

  • ENIG (Electroless Nickel Immersion Gold)
  • ENEPIG (Electroless Nickel Electroless Palladium Immersion Gold)
  • Electrolytic Nickel/Gold – Ni/Au (Hard/Soft Gold)
  • Immersion Silver
  • White Tin/Immersion Tin
  • OSP (Organic Solderability Preservatives)
  • Lead Free HASL (Hot Air Solder Leveling)

Selecting the right PCB surface finish for a particular application is crucial for maximising performance and reliability. A wide variety of factors need to be considered, such as cost, environmental conditions (temperature, shock, vibration, RF), component density, and production volume. To find out more, read the full article here.

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Posted by Mike Ball Mike Ball is our resident technical editor here at Unmanned Systems Technology. Combining his passion for teaching, advanced engineering and all things unmanned, Mike keeps a watchful eye over everything related to the unmanned technical sector. With over 10 years’ experience in the unmanned field and a degree in engineering, Mike’s been heading up our technical team here for the last 8 years. Connect & Contact

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