| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring structure having a conductive film of a specified thickness and its forming method which checks the local increase of the current density due to the skin effect in feeding a high frequency current. SOLUTION: The wiring structure made from a conductive film 30 of a specified thickness has an upward swollen convex shape in the cross section to the current flowing direction. It is formed by a step of laying an insulation film 20 along a pattern on a wiring forming region of a board for forming a wiring in a specified pattern of the conductive film 30, a step of swelling the upside of the laid insulation film 20 to form an upward convex surface, a step of forming the conductive film 30 of the specified thickness on the upside of the board, and a step of patterning the formed conductive film. COPYRIGHT: (C)2008,JPO&INPIT
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