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February 1997

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Re: FR4 material
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From [log in to unmask] Tue Feb 25 14:
32:48 1997
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John

As you may be aware the values are dependent on resin-content and conditions.
 
I attach values measured in standard lab conditions:

Regards.....JIm Francey

AlliedSignal Laminate Systems
(also [log in to unmask])


FR4 (DISSIPATION FACTOR) 
                       57%RC    
1.3GHz         0.023        
3.6GHz         0.023
5.6GHz         0.020
  
                       35% RC
1.2GHz         0.016
3.4GHz         0.018
5.4GHz         0.014


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