CIRCUIT MODULE

In a circuit module of the present disclosure, one or more solder balls have an ellipsoidal shape, are located in an inter-board region between an upper circuit board and a lower circuit board, and electrically connect the upper circuit board and the lower circuit board. The size of the second solde...

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Hauptverfasser: YOSHIMORI, Hiroki, NAKAGOSHI, Hideo, TAKAKURA, Tsuyoshi, OTSUBO, Yoshihito
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creator YOSHIMORI, Hiroki
NAKAGOSHI, Hideo
TAKAKURA, Tsuyoshi
OTSUBO, Yoshihito
description In a circuit module of the present disclosure, one or more solder balls have an ellipsoidal shape, are located in an inter-board region between an upper circuit board and a lower circuit board, and electrically connect the upper circuit board and the lower circuit board. The size of the second solder ball is larger than the size of the first solder ball. A first sealing resin is provided in the inter-board region so as to be in contact with a first lower main surface and a second upper main surface and to cover surfaces of the one or more second solder balls.
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subjects CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
PRINTED CIRCUITS
title CIRCUIT MODULE
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