Hi Sedat,

I noticed you've posted the same message twice.

I'm a little confused on your exact process - clean/no clean.

If you've got populated boards waiting prior to wave they should be just
fine in an appropriately controlled ESD environment.  My mil shop experience
we went to the extreme of storing in dry nitrogen ESD cabinets.

For wait times between soldering and coating (assuming no-clean), I'd check
your specific conformal coating process recommendations from the
manufacturer.  We had to clean our assemblies within an hour of soldering -
the sooner you clean the easier it gets.

Hans

You can run . . .  but you'll only die tired.
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Hans M. Hinners
Warner Robins Air Logistics Center (WR-ALC)
226 Cochran Street
Robins AFB, GA 31098-1622
Tele: (478) 926 - 5847 [DSN Prefix: 468]
Fax: (478) 926 - 4911
mailto:[log in to unmask]


-----Original Message-----
From: sbayar [mailto:[log in to unmask]]
Sent: Tuesday, November 19, 2002 12:35 AM
To: [log in to unmask]
Subject: [TN] soldering & coating standard
Importance: High


> I need some information for soldering and conformal coating operation.
>
> 1) We placed TH components on the PWBs but we did not pass these boards
> from the wave solder. They are waiting at the production area .( at the
room
> temperature).
> Is there any standard to keep these boards or any time limits for
corrosion
> effect?
> 2) Before the conformal coating operation , Is there any time limit or
> standard to keep  of  the soldered boards?
>
>
> Regards,
> Sedat BAYAR
>
>
>
>
>
>
>

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