| 摘要 |
A suspension board with circuit includes a circuit board and an optical waveguide provided in the circuit board. The optical waveguide is provided with a first optical waveguide having a curved portion and a secondary optical waveguide having a linear portion. The first optical waveguide includes a first under clad layer, a first core layer formed on the first under clad layer and included in the first under clad layer when projected in the thickness direction, and a first over clad layer formed on the first under clad layer so as to cover the first core layer. The secondary optical waveguide includes a secondary under clad layer, a secondary core layer formed on the secondary under clad layer, and a secondary over clad layer formed on the secondary core layer and included in the secondary core layer when projected in the thickness direction.
|
