Cathy
A qualified yes. However, you will need to ensure full synergistic
compatibility with all the process materials involved - this includes solder
resist, flux, paste, wire, adhesives, etc..
Be aware that there are new draft IEC / ANSI spec's in preparation that will
set the full test parameters, and I am a member of that committee. To my
knowledge, we are the only folks to have tested to these more stringent
requirements / test parameters. You need to properly mimic the entire
manufacturing process with suitable coupons to your intended end-product
then SIR test at 25v/mm with coupons of 400 / 200 micron - unless its has
already been done for you!
I cannot surely be flamed for asking you to look at my web site for further
info? Link below...
For more, ask me off-TechNet.
Regards, Graham Naisbitt
[log in to unmask]
http:// www.concoat.co.uk <http://www.concoat.co.uk>
For instant access to Product Data Sheets register on the Tech-Shot area of
http:// www.concoat.co.uk <http://www.concoat.co.uk>
Concoat Limited
Alasan House, Albany Park
CAMBERLEY GU16 7PH UK
Phone: +44 (0)1276 691100
Fax: +44 (0)1276 691227
Mobile: +44 (0)79 6858 2121
-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Cathy Killen
Sent: Wednesday, August 08, 2001 02:51
To: [log in to unmask]
Subject: [TN] Ionics again.
Hi everyone,
Can a no-clean process achieve ionic contamination <1.5ug cmsq according to
IPC TM-650 2.3.25 and a surface resistance > 5 X 10 (power of 8) according
to IPC TM-650.2.6.3.3?
If you believe it can be achieved, how?
How could you confirm it as an ongoing process control?
Cathy Killen
Training Instructor
[log in to unmask] <mailto:[log in to unmask]>
An Oasis of Training Excellence
* 028 38314305
DISCLAIMER
1. The information contained in this E-mail is confidential.
It is intended only for the stated addressee(s) and access to it by any
other person is unauthorised.
If you are not the addressee, you must not disclose, copy, circulate or in
any other way use or rely on the information contained in this E-mail. Such
unauthorised use may be unlawful. If you believe that you have received
this E-mail in error, please inform us immediately and delete it and all
copies from your system.
2. The views expressed in this E-mail are those of the author, and do
not represent the views of Smtek Europe., its associates or subsidiaries,
unless otherwise expressly indicated. In the avoidance of doubt, the
insertion of the name Smtek Europe., its associate or subsidiary under the
name of the sender may constitute an express indication that the views
stated in the Mail are those of the named company.
3. Please note it is your responsibility to scan this E-mail for
viruses.
----------------------------------------------------------------------------
-----
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
---------------------------------------------------------------------------------
|
