Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Fri, 30 Nov 2001 08:29:33 +0800 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Some years ago, I was faced with a few flooded boards (conventional
through-hole stuff), and the recovery operation involved removing the
excess solder by reflowing it upside down, removing the components and
putting the now-bare boards through the recently-remembered hydrosqueegee
process to re-level the solder and clear the holes. I shudder slightly at
the mere thought of all those high thermal excursions, but it did return us
useable boards.
Peter Duncan
Lou Hart
<lhart@COMPUN To: [log in to unmask]
ETIX.COM> cc: (bcc: DUNCAN Peter/Asst Prin Engr/ST
Sent by: Aero/ST Group)
TechNet Subject: [TN] board dunked in wave solder
<[log in to unmask]
ORG>
11/30/01
07:39 AM
Please
respond to
"TechNet
E-Mail
Forum."
TechNetters, I know there was discussion of this before, many months ago,
but I can't track down the postings in the archives. Please comment.
We have with solder on some of the top side, surrounding some components
(ICs and passives). It was dunked in wave solder. Are boards that have
"submarined" (I think someone used this term in the earlier discussion)
useable if excess solder is removed? Never useable? Sometimes?
I could say it's OK, since submarining shouldn't be as bad as HASL, but
would like some expert comments.
Lou Hart
Compunetix Quality Assurance
---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
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 delivery of Technet send the following message: SET
Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
---------------------------------------------------------------------------------
[This e-mail is confidential and may also be privileged. If you are not the
intended recipient, please delete it and notify us immediately; you should
not copy or use it for any purpose, nor disclose its contents to any other
person. Thank you.]
---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
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 delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
|
|
|