Subject: | |
From: | |
Date: | 01 Oct 96 08:47:06 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Some of our panels are gold plated. We use our normal production paste
and/or wave soldering process.
Shiny joints do not imply good reliability relative to dull joints.
Look at the microstructure. I have not had any failures attributed to
this come back from the field.
The only difficulty I had was with top side fill on the solder
machine.
______________________________ Reply Separator _________________________________
Subject: ASSY: Gold-to-Gold Soldering
Author: [log in to unmask] at internet
Date: 9/30/96 6:21 PM
Does anyone have experience soldering gold-plated SMT components to
gold-plated PCB's using a eutectic (Sn63/Pb37) solder? The solder
joints exhibit a dull, grainy appearance. Although I know that longer
liquidus dwell times and a maximum reflow temperature of 220 C are
typically recommended when soldering to gold, will other solder
alloys perform better (i.e,, Indium alloys)?
Thanks in advance,
Greg Kilinski
Acuson Corp.
[log in to unmask]
***************************************************************************
* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
***************************************************************************
* To unsubscribe from this list at any time, send a message to: *
* [log in to unmask] with <subject: unsubscribe> and no text. *
***************************************************************************
***************************************************************************
* TechNet mail list is provided as a service by IPC using SmartList v3.05 *
***************************************************************************
* To unsubscribe from this list at any time, send a message to: *
* [log in to unmask] with <subject: unsubscribe> and no text. *
***************************************************************************
|
|
|