AM26LV32E: Coefficient of Thermal Expansion (CTE) for 2 Parts

Hi David,

Are you looking for the CTE for the plastic mold compound, or something else like the metal leadframe?

Regards,

Max

That's actually a tough question.  For a leaded part, I would expect the CTE of the leadframe to dominate.  This part has no leads, though.  Since I know nothing about the internal construction of the part, I have no way of knowing what material would dominate.

What I really need is the overall CTE of the component.  If you guys have no test data for this part, though, it could be approximated by the CTE of whatever material you'd expect to dominate.  (For a film resistor, for example, it'd usually be the CTE of the alumina substrate.)

Your packaging people may be able to define this.

Thanks!

Hi David,

I've put in the request to our packaging team to see what data we can provide - I'll let you know as soon as I hear back.

Regards,
Max

Hi David,

I just wanted to pass along that our packaging team estimates that they will be able to provide a package CTE within a week.  I will follow up with you then.

Regards,
Max

Thank you!  I am eagerly awaiting their response!