Dear All,

 

While measuring Gold plating thickness on FR-4 material - Bromine correction is used - this ends up with lower than actual thickness in our case - Why is this done and is Bromine a neccessary component of all FR-4 laminates?

Please reply earliest as my Gold plate thickness of 0.5 mic is measuring same on Fundamental Parameters but as low as 0.3 microns with Bromine correction and my customer is pissing mad

 

Anil Kher