Sender: |
|
X-To: |
|
Date: |
Tue, 14 Jul 2009 19:41:31 -0700 |
Reply-To: |
|
Subject: |
|
From: |
|
X-cc: |
|
In-Reply-To: |
<1316806.1247568612903.JavaMail.Administrator@mp-test> |
Content-Type: |
text/plain; charset="US-ASCII" |
MIME-Version: |
1.0 |
Parts/Attachments: |
|
|
Ask your customer about the components they are using. There are many
"bootleg" components on the global market and I have seen many
solderability problems with through hole components, although not usually
blow holes.
Regards,
Bob Metcalf
Atotech Western Regional Manager
Cell 714-334-7667
E-Mail [log in to unmask]
This e-mail and any attachments hereto are business documents of Atotech
USA Inc. and may contain CONFIDENTIAL OR PROPRIETARY BUSINESS INFORMATION.
Unauthorized disclosure and/or use of information contained in this email
is prohibited. If you are not the intended recipient, you may not read,
use, disseminate or copy this message or any other files transmitted with
it.
mp3 <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
07/14/2009 03:50 AM
Please respond to
[log in to unmask]
To
[log in to unmask]
cc
Subject
[TN] Solderability
Hi,
We are a PCB manufacturer and we had supplied some 2.4mm thick PCBs to one
of our customers who has complained regarding solderability issue. They
say there are having issues with respect to blowholes / pinholes after
wavesoldering. We had checked for solderability on the coupon and had
ensured that everything is acceptable prior to the despatch. We repeated
the same after receipt of the feedback and found the results to be OK. To
simulate it, we sent a couple of bare circuits to a 3rd party assembler
and got it wave soldered. The hole diameters are 2.55mm and 1.0mm . The
photographs after wavesoldering trials are attached. We find it to be
quite OK. We feel that since there are no components, and since the
diameter is on the higher side, there will be a slight depression at the
centre. But the customer insists that the trial boards too have a problem.
Can you give a feedback on this after checking the attached photographs.
We were asking our customer to check on the parameters like fluxing etc.
And he says all are well in control. Any inputs to understand this issue
better.
rgds
pradeep
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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 or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------
-------------------------------
Micropack Ltd, Bangalore, India
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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 or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
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 or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------
|
|
|