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October 2009

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Subject:
From:
Linda Langley <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Linda Langley <[log in to unmask]>
Date:
Fri, 16 Oct 2009 11:10:02 -0400
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Steve,

I have a couple of pictures I would like for you to post, Stella would like to know if anyone has information about how to correct this problem.

 

 

 

Linda

I know that you are signed on Technet

Could you please post question to all experts for me:

We are reflowing 50pins CF card SMT connector and having high rate of the lifted leads (they are gull wings leads). We measured leads co planarity using CMM before reflow and it seems that all leads are meeting the spec. 

My guess is that the component body is bowing during reflow process (we are dong Pb free reflow with the peak of 234°C) causing lifted leads.

Somebody told me that there is a lab who can measure leads coplanarity during reflow cycle. Is anybody aware of such as test?

Thank you

 

 

Stella Neyman

 

 

Linda Langley CIT

Training Specialist

Jabil Circuit

248-292-6176


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