different from the device (i.e., gate) width, for devices that do
not define a MOS-like gate spanning the width of the device. This
is restricted to the assumption that the terminal is rectangular
and therefore a simple width and length can be derived from the
area and perimeter. Also, length is defined as the smaller
dimension and width as the larger dimension. For additional
restrictions, see the updated documentation. This was added to
allow correct width and length extraction of a bipolar emitter
window, but may be more generally useful.
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