[SI-LIST] Re: BGA Breakout
- From: Jack Olson <pcbjack@xxxxxxxxx>
- To: SI-LIST <si-list@xxxxxxxxxxxxx>
- Date: Thu, 21 Jan 2010 10:07:28 -0600
If you are considering different via patterns for BGA Breakout,
you should download Charles Pfeil's FREE book on the subject
http://iconnect007.com/ads/mentor/regform.php
(second edition!)
surfin' the learnin' curve,
Jack
.
> Date: Thu, 21 Jan 2010 13:33:10 +0100
> From: Robert Szumowicz <robert.szumowicz@xxxxxxxxxx>
> Subject: [SI-LIST] Re: BGA Breakout.
>
> Suresh,
> the ASCII picture shows (I hope) the idea of via pattern giving some
> extra routing space:
>
>
> 1 2 1
> trace traces trace
> .-. | .-. | | .-. | .-. [....]
> '-' | '-' | | '-' | '-'
> 1 trace ---- | | |
> .-. .-. .-. .-.
> '-' '-' '-' '-'
> ---------
> 2 traces ---------
> .-. .-. .-. .-.
> '-' '-' '-' '-'
> 1 trace ---------
> .-. .-. .-. .-.
> '-' '-' '-' '-'
> ---------
> 2 traces ---------
> .-. .-. .-. .-.
> '-' '-' '-' '-'
> 1 trace --------
> .-. .-. .-. .-.
> '-' '-' '-' '-'
>
> [...]
>
> Robert
>
> Suresh Kumar - ERS, HCL Tech wrote:
> > Hi Robert,
> >
> > That's very interesting!
> >
> > I am find my imagination not working to visualize the " two traces
> between
> > every second routing channel "
> >
> > so, Could you pl. send me some snap shot to understand better ?
> >
> >
> > thanks in advance
> >
> > regards,
> > Suresh
> >
>
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