John,
See below.

Bev Christian
Nortel

>----------
>From:  [log in to unmask][SMTP:[log in to unmask]]
>Sent:  Friday, October 31, 1997 5:06 AM
>To:    [log in to unmask]
>Subject:       [TN] Component Shelf Life
>
>     All,
>
>     1. Are a majority of the Manufacturers or OEMs receiving components
>        through Receiving with parts that have date codes as old as 9531?
        NO!
>     2. Does anyone check the date codes of components as part of their
>        Incoming Inspection?
>       YES
>     3. If older than 12 months, how are you approaching the solderbility
>        issues?  Are you dispositioning the parts for rework, return to
>        vendor or Use As Is?
>       Use as is.  I folder than 18 months do a solderability test.
>     4. Is it typical to receive components with date codes older around
>        9531, 9644, 9540, etc from the suppliers/distributers?
>       Very unusual to get parts older than 9601
>     5. I've identified that some components that are very old (typ. older
>        than 12 months) are having solderability defects (very random).  I
>        am having my Incoming Inspection identify the old components
>        through an Expired Parts List.  This sometimes helps me when
>        identifying defects in mfg.  Does anyone have a better method?
>       No
>     6. I'm not sure thie method is benefiting like I would want it to.
>
>     Any input is appreciated.
>
>     John Gulley
>     Inet Inc.
>     "A Smarter Vision"
>     www.inetinc.com
>
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