Wiring board and power conversion device

The invention provides a wiring board and a power conversion device, which can further improve the reliability when a plurality of semiconductor elements connected in parallel are driven by one drive circuit. The wiring board includes: a pair of hard substrates provided for each of a plurality of se...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KIGUCHI TATSUMASA, TAKUBO HIROMU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER CURRENT COLLECTORS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION LINE CONNECTORS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	The invention provides a wiring board and a power conversion device, which can further improve the reliability when a plurality of semiconductor elements connected in parallel are driven by one drive circuit. The wiring board includes: a pair of hard substrates provided for each of a plurality of semiconductor switching elements connected in parallel; a soft substrate provided so that at least a portion thereof is sandwiched between the pair of hard substrates (410a), the pair of hard substrates (410b), and the pair of hard substrates (410c); electrodes (460a-460c) that are connected to the gate terminals of the semiconductor switching elements; electrodes (470a-470c) that are connected to the source terminals of the semiconductor switching elements; a wiring (480), at least a portion of which is provided on the soft substrate, and which connects the electrodes (460a-460c) in parallel; and a wiring (490), at least a portion of which is provided on the soft substrate, and which connects the electrodes (470a-47