I'd bake them only if they need to be baked based on their MSL rating.
If they are a 3 -- then yes -- bake them and re-pack them properly.
But...be careful...if you keep opening and exposing the comps, you may
need to rebake which may cause solderability issues. 

In addition, if the tape they are in cannot handle the bake temp, you
may need to lower the bake temp and increase the time, or, remove and
bake then repack (in tubes). Of course...this now introduces the
possibility of damaging leads.

-Carrie

  

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Stephen Gregory
Sent: Wednesday, June 15, 2005 9:42 AM
To: [log in to unmask]
Subject: [TN] Baking PLCC-68's...

Just wondering, how many of you have ever baked a PLCC-68?

We've been raising the awareness level of our stockroom people about
component moisture sensitivity, and we've got some PLCC-68's that are on
a reel and been sitting on on our stockroom shelf for longer than
168-hours.

Well, we got another reel of the same part number (it's an Intel i960
PLCC-68) that came to us from Avnet in a vacuum sealed bag with a
level-3 MSL label on it.

I've never baked a PLCC-68...should I bake the reeled parts that have
been sitting on the shelf?

Kind regards,

-Steve Gregory-
Senior Process Engineer
LaBarge Incorporated
Tulsa, Oklahoma
(918) 459-2285
(918) 459-2350 FAX
__________________________________________________________________
This message may contain information that is privileged and confidential
to LaBarge, Inc.  It is for use only by the individual or entity named
above.
If you are not the intended recipient, you may not copy, use or deliver
this message to anyone.  In such event, you should destroy the message
and kindly notify the sender by reply e-mail.

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e To
unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET
Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the
posts: send e-mail to [log in to unmask]: SET Technet Digest Search the
archives of previous posts at: http://listserv.ipc.org/archives Please
visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for
additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------