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January 2006

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Subject:
From:
bob wettermann <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, bob wettermann <[log in to unmask]>
Date:
Thu, 26 Jan 2006 11:03:28 -0800
Content-Type:
text/plain
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text/plain (66 lines)
Steve:

  Ship it.  Just make sure that the minimum conductor width has not been
  comprimised beyond the allowable class limits.  This damage is better
  described in 10.2.9.1 (reduction in cross-sectional area)

  Regards

  Bob Wettermann
  BEST Inc

Stephen Gregory <[log in to unmask]> wrote:  Afternoon All,

Today we had one of our final inspectors spot something on a board that was
getting  ready to ship, that I'd like for you all to look at and offer an  opinion if you would...BTW, the board has been tested and coated (with  urethane).

Anyways, our inspector spotted a pad on the backside  of a connector lead that looks like it has a piece of it missing. Take  a look at:

http://stevezeva.homestead.com/files/Pad_Damage.jpg

and:

http://stevezeva.homestead.com/files/Pad_Damage_2.jpg

Not  really sure if the board was like that from the beginning, or if it  happened possibly during the lead clipping step just before wave  solder. Bottom-line is that we've spotted it. Of course our customer is  going to have the final say on what we are to do about it, but I'd like  your opinion on the problem.

The -610 says at 10.2.9.3 that damage to a conductor/land is a defect, cut and dried. But then there is the practical side...

Does  this look bad enough that you would go through all the hassle of having  to strip the coating, remove the connector, and repair the pad? Do you  think that the performance is compromised with this issue?

Just curious what you all think...

Stephen Gregory
Senior Process Engineer
LaBarge Incorporated
Tulsa, OK 74146
(918) 459-2285
(918) 459-2350 FAX


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Bob Wettermann

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