[SI-LIST] : Question about Multiple PWBA Ground

Spencer, David H ([email protected])
Wed, 07 Jul 1999 13:41:12 -0400

I am curious about multiple ground points on a PWBA. Assuming a typical 4
layer PWBA (8x8), with power and ground planes, mounted to a shield via
metal stand-offs (or screw to pad on the board). The ground plane is
connected to the metal plate with 4-10 screws (I am trying to keep this as
generic as possible).

My question is regarding any drawbacks to this configuration. Is there any
reason not to use multiple connections to chassis; rather than, the ground
plane connected back through the LVPS.
This configuration is becoming common place these days.

I am kind of scouting around for technical reasons for and against this

David Spencer

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