Boots – shoes – and leggings
Patent
1997-01-02
1999-07-13
Trans, Vincent N.
Boots, shoes, and leggings
364488, 364578, G06F 1750
Patent
active
059235659
ABSTRACT:
The present invention provides a computer implemented method and apparatus for determining the total capacitance of a primary interconnect line positioned between top and bottom ground planes. The primary interconnect line is positioned at a distance, H1, from the bottom ground plane and at a distance, H2, from the top ground plane. Preferred embodiments of the present invention include computer implemented processes for empirically determining the total capacitance of the primary interconnect line both with and without neighboring interconnect lines present. Core steps of the present invention include partitioning of a parameter representing fringe capacitance which is due to fringe electric fields induced between sidewalls of the primary interconnect line and the top and bottom ground planes. In the present invention, the fringing capacitance is partitioned into a top fringe capacitance, C.sub.f (H2), which is due to electric fields induced between the sidewalls of the interconnect line and the top ground plane, and a bottom fringe capacitance, C.sub.f (H1), which due to electric fields induced between the sidewalls of the interconnect line and the bottom ground plane. The total fringing capacitance is modeled according to:
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Findley Paul Raj
Smith Morgan Paul
Trans Vincent N.
VLSI Technology Inc.
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