TECHNET Archives

March 2001

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:
Guy Ramsey <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Fri, 23 Mar 2001 09:40:42 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (57 lines)
My experience mirrors Doug's. The stuff built up in the plumbing (closed
loop system) like cholesterol in an artery. We had to re-plumb a portion of
the machine.

 Guy Ramsey
American Competitiveness Institute
Senior Lab Technician / Instructor
610 362-1200 ext 107


-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Douglas Pauls
Sent: Friday, March 23, 2001 9:25 AM
To: [log in to unmask]
Subject: Re: [TN] Follow-up to solder flux problem


After considerable thought, we have decided to go with the water soluble
spacer idea.  By the way, to answer some of your questions, the substrate
we are using is a ceramic substrate, we are using a water soluble flux, and
we use aqueous cleaning.

*Paul, if you are going to use water soluble spacers, you will want to
monitor your sump more often and step up your preventative maintenance.
The dissolved spacer material tends to re-deposit where you least want them
to, as well as building up on the walls of your cleaner, as well as the
walls of your plumbing and pumps.  It doesn't just "go away".  Make sure
the dissolved material does not come back to bite you.

Doug Pauls
Rockwell Collins

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

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

ATOM RSS1 RSS2