PRINTED CIRCUIT BOARD UNIT, ELECTRONIC DEVICE, AND METHOD OF FABRICATING PRINTED CIRCUIT BOARD

PROBLEM TO BE SOLVED: To provide a fabricating method sufficiently reinforcing junction to a printed circuit board in mounting an electronic component onto the printed circuit board while ensuring a repairing property.SOLUTION: A printed circuit board unit includes the printed circuit board, and the...

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Bibliographische Detailangaben
Hauptverfasser: IRIGUCHI SHIGEO, NAKAMURA NAOKI, HATANAKA KIYOYUKI, TAKETOMI NOBUO
Format: Patent
Sprache:eng
Schlagworte:
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a fabricating method sufficiently reinforcing junction to a printed circuit board in mounting an electronic component onto the printed circuit board while ensuring a repairing property.SOLUTION: A printed circuit board unit includes the printed circuit board, and the electronic component electrically connected to a predetermined position on the printed circuit board by solder bonding and bonded to the printed circuit board with an adhesive layer. A partial region of the adhesive layer between the printed circuit board and the electronic component is a multi-layer laminated region 34 having a first reinforcing resin layer 30 on the printed circuit board side and a second reinforcing resin layer 32 higher in bond strength than the first reinforcing resin layer 30 on the electronic component side.