Hi,

My Opinion:

   Unless there was a cost and technical justification for allowing the cap
to remain it is a reject.

Bob K


-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Genny Gibbard
Sent: Friday, February 11, 2011 12:37 PM
To: [log in to unmask]
Subject: [TN] FW: What would you do?

Please see the link below.
Cap under BGA.  
Inquiring minds question: If the board tested out OK, would you ever
consider just leaving this here? The part is a ceramic cap.


________________________________

From: Steve Gregory [mailto:[log in to unmask]]
Sent: February 11, 2011 10:37 AM
To: Genny
 Subject: RE: What would you do?



Hi Genny,

 

I have your picture posted:

 

http://stevezeva.homestead.com/part_under_BGA.jpg

 

It depends. First thing I would want to know, what is this? Is it metal?
If it is, it would be a violation of electrical spacing and I wouldn't leave
it there.

 

Does the ball have any function? Some balls have no function.

What is this board for? A critical application? If it is then no.

How scarce is the BGA?

 

There's a lot of "it depends" that would have to be answered before I would
consider it.

 

My first reaction is that I wouldn't leave it there. But there may be some
circumstances that I might consider it.

 

Steve

 

From: Genny   

 Sent: Friday, February 11, 2011 10:32 AM
To: Steve Gregory
Subject: What would you do?

 

<<part under BGA.jpg>> 

Genny 


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