TECHNET Archives

April 2000

TechNet@IPC.ORG

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

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

Print Reply
Sender:
Subject:
From:
"Marsico, James" <[log in to unmask]>
Date:
Wed, 12 Apr 2000 07:40:45 -0400
Content-Type:
text/plain; charset="iso-8859-1"
MIME-Version:
1.0
Reply-To:
"TechNet E-Mail Forum." <[log in to unmask]>, "Marsico, James" <[log in to unmask]>
Parts/Attachments:
text/plain (26 lines)
Hello TechNet:

We've just ran our first production board designed with double sided SMT
components.  Everything worked well (bottom side components actually stayed
on!) except for one thing.  During the second reflow operation, some of the
0402s on the bottom tombstoned.  These all soldered fine the first time
around.  My first thought is to raise the heat slightly, but I thought I'd
check with you guys/girls first.  Any recommendations?

Thanks,
Jim M.

##############################################################
TechNet Mail List provided as a free service by IPC using LISTSERV 1.8c
##############################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in
the body:
To subscribe:   SUBSCRIBE TECHNET <your full name>
To unsubscribe:   SIGNOFF TECHNET
##############################################################
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information.
If you need assistance - contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315
##############################################################

ATOM RSS1 RSS2