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:
Karen Ebner <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Karen Ebner <[log in to unmask]>
Date:
Mon, 2 Jul 2007 14:34:38 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (74 lines)
Hi Werner

What other kind of issues could there be?  We just went from hand 
placement before reflow to smt placement before reflow.  Since this time 
our devices have skewed and hence, we have had poor solder fillets.  We do 
have solder being placed under the device ground plane also.  Any 
suggestions to minimize component movement during reflow greatly 
appreciated.

Thanks





Werner Engelmaier <[log in to unmask]> 
Sent by: TechNet <[log in to unmask]>
07/02/2007 01:08 PM
Please respond to
TechNet E-Mail Forum <[log in to unmask]>; Please respond to
[log in to unmask]


To
[log in to unmask]
cc

Subject
Re: [TN] When to epoxy heavy components






Hi Karen,
Are you talking about castellated LLCCCs? What is the PCB substrate? You 
may 
well have much more serious issues, that cannot be solved with bonding.



Werner



**************************************
 See what's free at http://www.aol.com.

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

ATOM RSS1 RSS2