[SI-LIST] Re: BGA design considerations?
- From: steve weir <weirsi@xxxxxxxxxx>
- To: si-list@xxxxxxxxxxxxx
- Date: Sat, 28 May 2011 13:39:58 -0700
If you are interested in package design, to get yourself started,
pick-up a copy of Cosmin Iorga's book.
Physical package design involves many trade-offs between cost and
performance. Performance has many mutual effects between power
distribution and signaling.
Steve.
On 5/28/2011 1:21 PM, Mike Sims wrote:
> Hello All,
> I am new to this so trying to learn :)
>
> I am just wondering what are the design considerations when designing a BGA
> layout? Obviously the location of signals and where they need to come out is
> important but beyond that what about parasitics and stuff like that?
> placements of gnd/pwr balls relative to signals?
>
> I have seen the BGA design in excel files in past. Is there a tool for
> simulating the parasitics of the balls? How is impact of moving a ball to a
> new location simulated? Is there an iterative way to figure out the best
> possible location of a ball (with some restrictions like the ball must be
> between A5 and C8, etc. or diff pairs must remain together, etc)?
>
> Thanks for your help.
>
> Mike Sims
>
>
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--
Steve Weir
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