Re: gEDA-user: IPC standard SMT footprints (0603, 0402 vs. RESC0603N etc.)

[Colin D Bennett <colin@xxxxxxxxxxx>]

On Wed, 25 May 2011 23:03:06 +0200
Gabriel Paubert <paubert@xxxxxxx> wrote:

> This said, most capacitors look to have a square profile, but
> resonance frequencies observed on microstrip line change between
> mounting the layers parallel or perpendicular to the ground plane.
> The problem is that, for most capacitors, it is very hard to
> determine the orientation of the layers.

That's interesting.  Are you saying that for high-frequency, critical
signals, the orientation of the chip capacitor affects its performance
in the circuit?  Is the SMD tape/reel packed in such a way that the
capacitors are optimally oriented, ready for pick-and-place onto a
PCB?

Regards,
Colin


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