AnsweredAssumed Answered

Temperature of FR4 vs Assembly Temperature

Question asked by Yesh on Sep 11, 2008
Latest reply on Oct 10, 2008 by Kenneth_Wood

 

Hi,

 

 

I do have a small basic doubt.

 

 

Normal FR-4's Tg is 125 degree C and almost all components we select are of normal commercial grade (70 to 0C) .

 

 

How these FR-4 and components are withstanding at the high soldering temperature ? 180 degree C for  reflow and 220 + degree C for wave ?

 

 

Does the Time matter?

 

 

Thanks,

 

 

Yesh

 

 

 

 

 

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