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Electronics
F
Flash
and Draw Apertures
To achieve constant exposure on a vector Photo Plotter,
apertures used for flashing pads are filtered differently than those used
for drawing traces. Therefore, Flash and Draw apertures cannot be used
interchangeably without risk of localized over-exposure and
under-exposure.
Flash
and Draw Apertures
No distinction need be made between Flash and Draw aperture
types since the light source intensity is constant.