 Signal generation using optical pulses |
| It is therefore a principal object of this invention to utilize optical pulse technology for ... |
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| Method, device, and system for controlling wavelength of optical signal |
| It is therefore an object of the present invention to prevent a degradation in transmission quality ... |
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| Heterojunction bipoplar mixer circuitry |
| What is claimed is: 1. Mixer circuitry comprising: a semiconductor body, such body having formed ... |
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| Optical upconverter apparatuses, methods, and systems |
| Apparatuses and methods of the present invention address the above need by providing optical ... |
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| Electrooptic modulator for frequency translation applications |
| What is claimed is: 1. An optical modulator, comprising: a splitter/combiner light coupler ... |
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| Optical network and switch control method for use in the optical network |
| What is claimed is: 1. A method of controlling a switching operation of an optical network ... |
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| System for transmitting optical data |
| Also, the aim of the invention is to propose a transmission system which is more flexible to use ... |
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| Semiconductor optical device with light controlling layer of super-lattice structure |
| It is therefore an important object of the present invention to provide a semiconductor optical ... |
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| Binary stratified structures for periodically pumped semiconductor lasers |
| OF THE PREFERRED EMBODIMENT I. Introduction The preferred embodiment of the invention is discussed ... |
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Method for performing coupling analysis
| Details |
Inventors: Dansky, Allan H.; Bowen, Michael A.; Camporese, Peter J.; Deutsch, Alina; Smith, Howard H.;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Siek; Vuthe
Assistant Examiner: Levin; Naum
Attorney, Agent or Firm: Augspurger; Lynn Cantor Colburn LLP
Deterministic evaluation of coupling noise voltage is a function of many physical and electrical parameters such as wiring level, widths, spacing, net topologies, drv impedance and slew rates. This evaluation requires electrical modeling and subsequent circuit simulation to assess the sensitivities of these parameters. These sensitivities can be categorized as coupling guidelines that can be directly linked through extracted physical design data. This invention discloses the development and implementation of a technique for using a coupling guideline table early in the design of an integrated circuit when all the parameters generally required for coupling noise voltage calculations are not available. The steps include: creating a flat wire routing map of the integrated circuit, identifying the coupled wire segments on the integrated circuit, tracking wire interconnection patterns on the integrated circuit, deriving electrical parameters for the coupled wire segments, and generating a coupling guideline table with parameters for a plurality of electrical parameters. The parameters in the coupling guideline table are applied to the derived electrical parameters and a report is generated that lists the derived electrical parameters that fail to comply with the parameters in the coupling guideline table. |
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DETAILED DESCRIPTION Deterministic evaluation of coupling noise voltage is a function of many physical and electrical parameters such as wiring level, widths, spacing, net topologies, drv impedance and slew rates.
This evaluation requires electrical modeling and subsequent circuit simulation to assess the sensitivities of these parameters.
These sensitivities can be categorized as coupling guidelines that can be directly linked through extracted physical design data.
This invention discloses the development and implementation of a technique for using a coupling guideline table early in the design of an integrated circuit when all the parameters generally required for coupling noise voltage calculations are not available.
The steps include: creating a flat wire routing map of the integrated circuit, identifying the coupled wire segments on the integrated circuit, tracking wire interconnection patterns on the integrated circuit, deriving electrical parameters for the coupled wire segments, and generating a coupling guideline table with parameters for a plurality of electrical parameters.
The parameters in the coupling guideline table are applied to the derived electrical parameters and a report is generated that lists the derived electrical parameters that fail to comply with the parameters in the coupling guideline table.
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Fault Detection 
