Electronic device

In an electronic device, a one-side heat radiation element and a two-side heat radiation element are disposed on a surface of a substrate adjacent to a heat sink. The one-side heat radiation element has a rear-side covered conductive portion and a rear-surface molded portion on the rear-side covered...

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Bibliographische Detailangaben
1. Verfasser:	Morino Seiji
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	In an electronic device, a one-side heat radiation element and a two-side heat radiation element are disposed on a surface of a substrate adjacent to a heat sink. The one-side heat radiation element has a rear-side covered conductive portion and a rear-surface molded portion on the rear-side covered conductive portion adjacent to the heat sink, and radiates heat to the substrate. A surface of a rear-side exposed conductive portion of the two-side heat radiation element adjacent to the heat sink is exposed and the two-side heat radiation element radiates heat to the substrate and the heat sink. The rear-surface molded portion controls a limit position of the one-side heat radiation element toward the heat sink due to deformation of the substrate. A heat radiation gel is filled in between the rear-side exposed conductive portion and the heat sink to radiate heat from the two-side heat radiation element toward the heat sink.