Steve,
Before anything I like to clarify something, that by no means I was implying
that people on this forum are bunch of
"bumbling idiots" as you put it. Therefore I like to apologize if my
comments created such an impression(s).

As for my experience with via in pads, I used via in pads and vias close to
pads on RF boards all because engineers desired
to have the shortest pads to GND. Yes we knew we going to have problems
specially in assembly for exactly the same issues you have mentioned.
I decided to use vias with 10.5 Mils diameter and after discussions with
people in manufacturing and in assembly, we had vias to be filled with
conductive
epoxy. This worked for us and worked good we had to forgo ICT's and settle
for functional test.

I like also to thank you for having a website to help us see the pics of
problem boards.



At the end this is to the guy who is a master and has opinion on all issues,
I consider myself very lucky to benefit from his technical
expertise but I would not arm myself with offensive language just to do talk
to talk, I am sorry I wont lower myself to that level.

Shahed




 -----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Friday, April 05, 2002 9:05 PM
To: [log in to unmask]
Subject: Re: [TN] Via in Pad



Shahed,

It's encouraging from your remarks, that there is a way to deal with the
problems that occur with vias in pads. As you can see from the pictures on
my web page, I did experience insufficient solder joint issues...as many
others have. You may have the answer, but chose not to share.

But what is somewhat troublesome to me, is that you post a message that you
say you are amused at all the communication about the issue...and my take on
that statement is essentially saying that many of us on the list are a bunch
of bumbling idiots. Maybe so, but the reason many of us are subscribed is to
learn, not to be berated....

I'm happy that you have a solution, but unhappy that you chose to express to
the list that you are amused at those of us that may not have the insight
that you do in dealing with this problem...you just demonstrated  poor style
if you ask me. Best thing would have not to said anything at all in my
opinion.

I'll figure it out somehow, if you've come up with a solution, then I
can...may just take me a little longer.

Be happy...

-Steve Gregory-



I used vias in pads on many RF boards and had NO problem
what so ever. It amuses me a lot, to see these much discussions are going on

about this "issue".

Shahed