Method for extracting capacitance of interconnection structures containing redundant metal
An interconnection structure and redundant metal technology, applied in electrical digital data processing, instruments, calculations, etc., can solve the problem of difficulty in quickly and accurately extracting capacitance between metal lines, and achieve the effect of reducing the amount of calculation and speeding up the speed.
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[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0017] The present invention provides a method for quickly extracting the capacitance of an interconnection structure containing redundant metals by establishing a capacitance lookup table. The method is realized through two steps: firstly, establishing a capacitance lookup table containing redundant metal interconnection structures (step A), Then for the actual circuit layout, the capacitance is extracted by querying the capacitance look-up table (step B).
[0018] figure 1 Flowchart for step A to create a capacitance look-up table wit...
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