Yup. What they said.
Too often, the BS factor is overwhelming. The people making the connection
are purchasing on one side, sales on the other. Not that all purchasing and
sales types are clueless technically, but usually, they aren't the ones
asking or answering. The job is being quoted by multiple sources, so doing
anything but quoting a real cheap price real quick is detrimental to their
cause. The worker-bees with the technical questions and answers are not
encouraged to communicate directly, and sometimes for business reasons it's
forbidden. Any communication that does occur percolates through many
filters each way. And then there is a whole 'nuther BS factor regarding
document control, in-house guidelines and standards, etc.
Not to say that we shouldn't always try to improve and evolve. These are
just some of the reasons why it's so hard sometimes.
-Chris
"Jack C. Olson"
<[log in to unmask]> To: [log in to unmask]
Sent by: TechNet cc:
<[log in to unmask]> Subject: Re: [TN] SMOBC question...
05/18/2005 11:34 AM
Please respond to TechNet
E-Mail Forum; Please
respond to "Jack C. Olson"
Why are vendors so reluctant to ask the customer what is the intention
behind their vague notes?
As a board designer, I wish vendors would just ask me what I meant,
instead of trying to get a consensus on a forum.
Jack (the "lone voice crying in the wilderness" guy)
----- Message from Stephen Gregory <[log in to unmask]> on Tue,
17 May 2005 08:03:12 -0500 -----
Subject:
Re: SMOBC question...
Hi Jeffery,
The board that I'm talking about doesn't seem to be that old
design-wise. So do you think that maybe the note is just something
kind of got "boiler-plated" from earlier designs?
A description of the board is that it is a VME styled board, and
everything
on the board is SMT including headers, right angle push button switches,
etc., the only through-hole is two press-fit right angle connectors. So
the
board is never going to see wave solder.
The board is 15-layers and only .065" thick. Do you think that maybe the
reason they have the note prohibiting HASL is because they don't want
to thermally shock the board which may cause other problems?
Kind regards,
-Steve Gregory-
Senior Process Engineer
LaBarge Incorporated
Tulsa, Oklahoma
(918) 459-2285
(918) 459-2350 FAXJack C. Olson
10G Circuit Board Designer
(630) 754-2431
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
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
-----------------------------------------------------
This e-mail message is intended only for the use of the intended recipient(s). The information contained therein may be confidential or privileged, and its disclosure or reproduction is strictly prohibited. If you are not the intended recipient, please return it immediately to its sender at the above address and destroy it.
---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
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
-----------------------------------------------------
|
