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in-plane effective coefficient of thermal expansion (CTE)

ncanals
Beginner
‎10-06-2020 10:40 AM
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Part numbers: EN6362QI
EN63A0QI

I am performing a solder joint  reliability calculation and I would like to know if you have tested these parts to find the effective in-plane CTE. 

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Mostafa_Intel_AE
Employee
‎10-21-2020 02:15 PM
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Hello NCANALS,

Sorry for late response.

The two products are molded QFN packages. 
Their mold compound CTE values.
CTE (below Tg) =  1 X 10^-5   1/oC.
CTE (above Tg) =  4 X 10^-5   1/oC
Tg = 135C

 

Thanks,

Mostafa

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