TECHNET Archives

July 2007

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
David Tremmel <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, David Tremmel <[log in to unmask]>
Date:
Thu, 26 Jul 2007 16:21:31 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (49 lines)
Hello gurus of the Technet,

 

 

We are trying to rework some microBGAs but there is not enough room under
the parts for a thermocouple and drilling a hole through the board is not an
option at this point.  

 

We are placing a thermocouple on the top of the components being reworked
and covering it with Kapton tape and the thermal profile we are using is
maxing-out at 215° C.

 

 

Does anyone have experience measuring the component temperature and not the
solder temperature and would they mind sharing their results?  Are we asking
for field defects because we are not measuring the solder temperature?

 

 

Thank you in advance,

 

David Tremmel

(847) 858-5540 - Cell

 


---------------------------------------------------
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
-----------------------------------------------------

ATOM RSS1 RSS2