FLEXIBLE PRINTED WIRING BOARD, CONNECTION STRUCTURE THEREOF, METHOD OF MANUFACTURING THEM, AND ELECTRONIC EQUIPMENT
PROBLEM TO BE SOLVED: To provide a flexible printed wiring board capable of avoiding stress concentration in the electrodes of the flexible printed wiring board even if it is deformed while efficiently and conductively connecting the electrodes each other using AFC.SOLUTION: A flexible wiring board...
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creator | UCHIDA YOSHIFUMI |
description | PROBLEM TO BE SOLVED: To provide a flexible printed wiring board capable of avoiding stress concentration in the electrodes of the flexible printed wiring board even if it is deformed while efficiently and conductively connecting the electrodes each other using AFC.SOLUTION: A flexible wiring board 10 is covered with coverlay resin films 5 and 6 having electrodes 2a provided on their surfaces and leaving a space for an electrode connecting area S containing the electrodes so as to expose the electrodes. A wiring circuit 2b is located only on the back in a region overlapping the electrode connecting area in a plan view, and the electrodes on the surface are conductively connected to the wiring circuit on the back through a via hole h located in the electrode connecting area or the peripheral part thereof. |
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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 | FLEXIBLE PRINTED WIRING BOARD, CONNECTION STRUCTURE THEREOF, METHOD OF MANUFACTURING THEM, AND ELECTRONIC EQUIPMENT |
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