Nippon Mektron Limited

Takeo Wakabayashi

Takahisa Kato

Masayuki Iwase

Satoshi Ebihara

Kazuyuki Azuma

Nobuto Sasaki

Tomohiro Shimokawaji

Eiji Mizuno

Provided are both a flexible printed board, in which heat dissipation performance can be improved in without using an aluminum heal dissipating material, which is light in weight, has good processability and can be reduced in cost, and a method for manufacturing such a flexible printed board. The flexible printed board is a flexible printed boardon which a power consuming load is mounted, including: a front surface heat dissipation layermade of a copper foil and having a circuit portion on which the load is mounted; a thermally conductive resin layerhaving the front surface heat dissipation layerlaminated to a front surface side thereof and having a thermal conductivity of 0.49 W/mK or more; and a rear surface heat dissipation layer made of a copper foil, laminated to a rear surface side of the thermally conductive resin layer, and having a thickness of 100 to 400% with respect to the front surface heat dissipation layer

Flexible printed board and method for manufacturing flexible printed board

The stretchable circuit board () includes: a stretchable base (); a stretchable wiring portion () formed on the stretchable base (); a reinforcement base () having in-plane rigidity higher than that of the stretchable base (); a draw-out wiring portion () formed on the reinforcement base (), and electrically continuous with the stretchable wiring portion (); and an elastomer layer () formed on the reinforcement base (). The reinforcement base () overlaps with a partial area () of the stretchable base (). An other area () of the stretchable base () is exposed from the reinforcement base (). The stretchable wiring portion () extends on the other area () and over the partial area (). The elastomer layer () and the stretchable base () are layered and joined with each other.

Stretchable circuit board and method for manufacturing stretchable circuit board

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Tokyo, Japan

Takeo Wakabayashi