[SI-LIST] : Split power plane

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From: Yosi.Zangiri@ecitele.com
Date: Wed Jun 28 2000 - 08:00:36 PDT


Hi,

We have a design with 4 different Power and 2 Grounds.
We plan to put all 4 Power and AGND in one plan - layer 2 (close to DGND
plan - layer 3).
Hi-Speed Signals ( Rise time of 150 ps) are routed in other layers as strip
lines.

We would like to know:
Is there any limitation/ recommendations to the gap between the power
areas?
Do you recommend any "filter" between power areas?
Do you recommend any "filter" between power areas and AGND?
What should be the minimum thickness between the Power plane and layer1?
What should be the minimum thickness between the Power plane and layer 3?

Thanks

Yosi Zangiri
Design & Manufacturing Technologies
ECI Telecom
mailto:Yosi.Zangiri@ecitele.com
Phone: +972-3-926 8235

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