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August 2010

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Subject:
Re: Baking CCA's for hours
From:
Frank Kimmey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Frank Kimmey <[log in to unmask]>
Date:
Thu, 5 Aug 2010 16:17:05 -0700
Content-Type:
text/plain
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text/plain (53 lines) 
125C for 2 days repeatedly could start to affect reliability of final assemblies.
Dielectric breakdown could start especially if UL MOT is only 105C
I would advise caution to this practice and expect serious justification prior to following.
One opinion,
FNK

Frank N Kimmey CID+
Manager - PCB Design
Powerwave Technologies Inc
Mobile - 916-670-0645
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Brad Saunders
Sent: Thursday, August 05, 2010 4:08 PM
To: [log in to unmask]
Subject: [TN] Baking CCA's for hours

Howdy folks,
I have an application where Circuit Card Assemblies are baked at 125 degree Celsius for 48 continuous hours (2 days), this is repeated a few times.  No vibe or operating, etc just on a shelf, any thoughts?
Thanks Brad

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