Hi again folks,
Re the ,Multilayer board that I asked about a while ago, well I'm well on my
way with it now...

And I just got a question about the 0v plane..

Should it be solid copper groundplane or should it be hatched?

Recently I have started to use hatched groundplane to reduce the likelihood
of the board
warping due to uneven copper distribution, to make it better for etching and
to reduce the amount of
heat absorption when going through the Reflow oven.

The question is, does any of this (or other stuff) apply to an inner layer?

The board is 4 up as:
Top = SMT components & some tracking.
Top inner = 0v groundplane
Bottom inner = Positive supply signals (not a single plane, but split into
isolated supply signals)
Bottom = Signal tracks that won't fit on the top.

All the extra colours for the extra layers are doing my head in - a bit of
optical overload.

Matthew Lamkin.

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