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Date: | Thu, 31 Jul 1997 13:05:07 -0400 |
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Hi Jack,
One question: Analog or digital signals at 1.9 GHz?
Regards, Doug
> From: Jack Olson <[log in to unmask]>
> To: [log in to unmask]
> Subject: DES: Via Inductance
> Date: Thursday, July 31, 1997 12:51 PM
>
> I am a lowly board designer, and I have been asked to
> replace our standard via types (0.18 hole diameter) with
> vias that are twice as large (.036 holes) to reduce the
> inductance. I haven't seen any data to warrant a change
> like this, so I was hoping:
>
> Can anyone steer me towards finding out the inductance of
> vias at 1.9GHz based on their diameter?
>
> Is anyone brave enough to hazard an opinion as to the REAL
> effect of vias on a 1.9GHz circuit? I should mention that
> all signals are on one layer, the vias are ONLY for power
> and ground access.
>
> confused but want to learn, Jack
>
>
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