Patent Number: 7,787,718

Title: Suspension board with circuit

Abstract: A suspension board with circuit includes a metal supporting board including a board trench portion, an insulating base layer formed on a surface of the metal supporting board, a conductive pattern formed on a surface of the insulating base layer, and an optical waveguide provided to overlap the board trench portion when projected in a thickness direction of the metal supporting board. At least a part of the optical waveguide is positioned closer to the conductive pattern than to a back surface of the metal supporting board.

Inventors: Ishii; Jun (Osaka, JP), Naito; Toshiki (Osaka, JP)

Assignee: Nitto Denko Corporation

International Classification: G02B 6/12 (20060101); G02B 6/36 (20060101); G02B 6/00 (20060101); G02B 6/10 (20060101); G02B 6/30 (20060101); G02B 6/26 (20060101)

Expiration Date: 8/31/12018