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August 1999

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Subject:
From:
Hinners Hans CIV WRALC/LYPME <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 31 Aug 1999 16:10:06 +0100
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Nick and all,

We pre-tin our gold leads for the very same reasons you mention.

What do your customers say to the change?

Hans

Air Force Material Command - We keep them flying!
~~~~~~~~
Hans M. Hinners                                 WR-ALC/LYPME Bldg. 640
Materials Engineer                                      380 Second Street,
Suite 104
Manufacturing Eng. Sec.                         Robins AFB GA 31098-1638
912-926-1970 (Voice) 468 - 1970 (DSN)   912-926-7974 (Fax)
[log in to unmask]


> -----Original Message-----
> From: Nick D'Onofrio [SMTP:[log in to unmask]]
> Sent: Tuesday, August 31, 1999 09:26
> To:   [log in to unmask]
> Subject:      [TN] Pre-tinning gold leads
> Importance:   Low
>
>   We are pre-tinning the gold leads prior to assembly on our military
> products. I'm looking for some constructive data or argument to decide if
> we
> should continue this practice.
>   My concern would be gold embrittlement in the solder joint and any
> latent
> failures attributed to this.
>   Any comments or guidance in this matter would appreciated.
>
> Regards,
> Nick D.
>

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