Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Thu, 2 Nov 2000 08:27:33 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Technetters,
I have a huge problem with the wetting and solderability of a fine
pitch 15 mil QFP. I then spoke with the solder supplier; which
requested a couple of the components and performed x-sections. During
the x-sections, they also performed a metal composition of the
components lead. The metal in the leads turned out to be alloy 42,
which is ....non-wetting???? ...."or so I'm told".
I really don't know much about metals but the solder supplier stated
that the component will never wet properly. I would really like to
get some literature on this alloy 42 and ask if anyone else has had
any of these problems and what was their fix.
Thanks in advance for your time and energy.
Regards,
Ron Waugh
Process Engineer
Diversified Systems, Inc.
Phone: (317) 299-9547 Ext. #336
Fax: (317) 298-2055
Email: [log in to unmask]
---------------------------------------------------------------------------------
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
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
---------------------------------------------------------------------------------
|
|
|