Hi Prashant!

If the the packages are plastic and 44-pins or below, you should have no
problems. A PLCC-68 is pushing things a bit though...

Steve 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of prashant chopra
Sent: Friday, June 06, 2008 6:52 AM
To: [log in to unmask]
Subject: [TN] Double side reflow query

Hi,

We are having a PWB wherein, we have a potentiometer and 3 PLCC package
on the bottom side of the PWB.

I need help to know if there would be issue of these components falling
off during the second reflow process (when top side is being reflowed)?

We not have options to move these on the top side as there are already
other PLCC and BGA packages eating up the PWB land area.

Let me know your comments and also on how can we prevent these from
falling off during the second reflow process?

I am attaching the data sheet for both these parts above.

Thanks, in advance to all of you for your help and precious time.

Rgds
Prashant



      Bollywood, fun, friendship, sports and more. You name it, we have
it on http://in.promos.yahoo.com/groups/bestofyahoo/

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0 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 15.0
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
-----------------------------------------------------