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MIL-AERO Weekly Newsletter
  7/19/2016 Current Mil/Aero News: MilAero007 | Mil/Aero Events | Subscriptions
This Week's Feature    
 
The Dilemma--Solder Mask for High-Frequency PCBs
Typically, PCBs with RF traces on the outer layers have minimal or no solder mask in the RF circuitry areas. Many times the solder mask is applied in areas where components are soldered to the PCB but the solder mask is developed away in the areas where conductors have critical RF performance. There are many reasons to avoid solder mask coverage on RF conductors, due to inherent solder mask properties.

  Top Story
 

Designing With Tighter Tolerances
David Ledger-Thomas is a PCB design engineer with Honeywell Aerospace. He’s spent decades designing PCBs for a variety of applications, including defense, aerospace, computers, and high-performance audio. I asked David to share some of his thoughts on designing high-tech boards with increasingly finer spaces, traces and pitch.

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