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January 2008

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Subject:
From:
John Burke <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, John Burke <[log in to unmask]>
Date:
Wed, 16 Jan 2008 11:29:22 -0800
Content-Type:
text/plain
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text/plain (70 lines)
Couple of suggestions - try infra red light source, try polarized light.

John

 
 
John Burke
 
(408) 515 4992

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Eric Castonguay
Sent: Wednesday, January 16, 2008 11:05 AM
To: [log in to unmask]
Subject: [TN] Bent leads on CCGA - Inspect with Panasonic CM602

Dear Technetters,
Is anybody have some experience of placing CCGA with P&P Panasonic
CM602? 
So far, we had placed hundreds of them but we still did not find a way
to inspect them efficiently for bent leads. We do have a side lighting
camera mounted in the machine. Our service engineer told us that the
reference code must be changed to a BGA type of part. By doing this,
each post is recognized to ensure the leads are straight. We did this,
but still have hard time to differentiate the TinLead from the white
ceramic substrate because the contrast is so light. Any idea how to
proceed? 

We have no way right now the prevent bent leads unless inspecting the
raw parts in the tray magazine before running the line. And we don't
like to do this since there is high risk of damaging the leads by
manipulating the CCGA.

Regards,
Eric Castonguay, process eng.


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