[PCB_FORUM] Re: Allegro 0402 footprint for under a 1mm BGA?

Hi,
we have used 0402 caps below 1mm BGA.Pad size we used is 20 mils
square,Pitch 40 mils or 39.37 .Your have check with the fab house & Assembly
house.

Regards
Selva

-----Original Message-----
From: Kevin McCowan [mailto:kmccowan@xxxxxxxxxxxxxx]
Sent: Friday, February 25, 2005 7:10 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: Allegro 0402 footprint for under a 1mm BGA?


I did not see any answer to this so...
Check with your board assembly house.
This has been discussed many times before.
You need to keep them happy and they most likely
will have many good suggestions on how to create
your symbols so they get the best out of your
boards. Most, if not all, of us have been down
this road a number of times before.
I for one don't feel comfortable giving my symbols
to others as I have tested them, but not in YOUR
particular situation. I am sure others feel the same.

Good luck,
Kevin McCowan
Sr. PCB Designer
TSI Telsys

Austin Franklin wrote:
> Hi,
>
> Does anyone have an 0402 footprint that they use under a 1mm BGA that they
> would be willing to share?
>
> Regards,
>
> Austin
>
>
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