TECHNET Archives

August 1999

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:
X-To:
Date:
Fri, 20 Aug 1999 22:30:13 EDT
Reply-To:
"TechNet E-Mail Forum." <[log in to unmask]>, [log in to unmask]
Subject:
MIME-Version:
1.0
Content-Transfer-Encoding:
7bit
Content-Type:
text/plain; charset="us-ascii"
From:
Werner Engelmaier <[log in to unmask]>
Parts/Attachments:
text/plain (29 lines)
Hi Greg,
While fast heating can set up stresses due to thermal gradients in chip
capacitors (CCs), there is evidence that the cooling rate after the
solidification of the solder may be more critical. That is particularly so in
the presence of large solder fillets. I would think the actual rates would be
size and construction dependent.

Werner Engelmaier
Engelmaier Associates, L.C.
Electronic Packaging, Interconnection and Reliability Consulting
7 Jasmine Run
Ormond Beach, FL  32174  USA
Phone: 904-437-8747, Fax: 904-437-8737
E-mail: [log in to unmask], Website: www.engelmaier.com

##############################################################
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 Gayatri Sardeshpande at [log in to unmask] or
847-509-9700 ext.5365
##############################################################

ATOM RSS1 RSS2