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Generating process of optimal cutting number in virtual multi-medium capacitor extraction

A multi-media and capacitor technology, which is applied in electrical digital data processing, circuits, electrical components, etc., can solve problems such as slow capacitance extraction and calculation speed

Inactive Publication Date: 2004-06-09
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0087] In the second step of the above-mentioned virtual multi-media capacitance extraction method, the cutting parameters m and n need to be specified artificially (or some empirical formula is adopted), which makes the overall calculation performance of QMM capacitance extraction largely depend on the user's experience. And the calculation speed of capacitance extraction is slow

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  • Generating process of optimal cutting number in virtual multi-medium capacitor extraction
  • Generating process of optimal cutting number in virtual multi-medium capacitor extraction
  • Generating process of optimal cutting number in virtual multi-medium capacitor extraction

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Embodiment Construction

[0203] The following describes the implementation process of virtual multi-media capacitance extraction with OSMZ method in conjunction with a specific example.

[0204] Run the QMM capacitance extraction software embedded with the OSMZ method on the Sun Ultra Enterprise 450 workstation to extract the total capacitance of the main conductor and the coupling capacitance between it and other conductors in this embodiment.

[0205] The steps of the QMM capacitance extraction method are as follows:

[0206] Information processing and parameter preparation before the OSMZ method:

[0207] First, the interconnection simulation structure is placed in a three-dimensional Cartesian coordinate system, and each side of the simulation structure area is correspondingly parallel to the three axes x, y, and z of the coordinate system.

[0208] Figure 12 Shows the front view of this embodiment, which is a simulated structure containing 5 layers of media (D1, D2, D3, D4, D5), the size of th...

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Abstract

The present invention belongs to the field of 3D interconnected capacitor extraction technology in computer-aided IC design. The method generates the optical cutting number and optimizes capacitor extracting speed. The method includes the following successively executed computer steps: determining optional cutting numbers (m, n) to constitute a number set based on the geometric parameters of the simulating structure; calculating Z parameter with the numbers (m, n) successively to obtain set Z (s); and determining the optimal cutting number based on the optional cutting number set and Z (s). The said method can shorten capacitor extracting period in certain calculation accuracy.

Description

technical field [0001] The invention relates to a method for generating an optimal number of cuts in virtual multi-media capacitance extraction, which belongs to the technical field of three-dimensional interconnection capacitance extraction in integrated circuit computer aided design (IC-CAD). Background technique [0002] Integrated Circuit (Integeated Circuit, IC) is the cornerstone of the current electronics industry and even the information industry. With the development of semiconductor integrated circuit manufacturing technology, the metal interconnection lines in the circuit are getting narrower (reaching below 0.13 microns), and the distance between lines is getting smaller and smaller. This makes electromagnetic field parasitics between interconnect lines a major factor affecting circuit performance such as delay, power consumption, and reliability. Therefore, interconnect parasitics must be considered in IC design. [0003] The current design process of integrat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50H01L21/82
Inventor 喻文健王泽毅古江春
Owner TSINGHUA UNIV