POWER SUPPLY NOISE ANALYSIS MODEL GENERATING METHOD AND POWER SUPPLY NOISE ANALYSIS MODEL GENERATING APPARATUS

An object is to simplify a power supply noise analysis model of a circuit board. CAD data of the circuit board is obtained from a CAD apparatus, and overlapping power supply islands among power supply islands existing in different layers of the circuit board are extracted as a power supply pair. Nod...

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Bibliographische Detailangaben
Hauptverfasser:	HIRAI TENDOU, CHIDA HITOSHI, KANEI KAZUYOSHI, NIMURA KOUTAROU, FUJIMORI SHOGO, IWAKURA YOSHIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PHYSICS PRINTED CIRCUITS
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Beschreibung
Zusammenfassung:	An object is to simplify a power supply noise analysis model of a circuit board. CAD data of the circuit board is obtained from a CAD apparatus, and overlapping power supply islands among power supply islands existing in different layers of the circuit board are extracted as a power supply pair. Nodes are arranged in the extracted power supply pair, and the nodes of the power supply pair are projected on the power supply islands to which the power supply pair belongs. A mesh region which encloses each node is determined for each power supply island, and impedance (L, R, C) between nodes is calculated. Then, a power supply noise analysis model is created based on the impedance between nodes in each layer, and a capacitance between layers.