| 摘要 |
PROBLEM TO BE SOLVED: To provide a conducting film used for connection, such that an electronic component including a connection terminal with a narrow pitch is mounted on a wiring board. SOLUTION: An organic insulating layer 5 is provided with a plurality of linear conductors 3, extending in the thickness direction, and the plurality of linear conductors 3 are exposed from the surface of the organic insulating layer 5 through the organic insulating layer 5. The organic insulating layer 5 is a thermosetting resin layer in an un-cured condition. Here, the diameter of the linear conductor 3 is in the range of 30-1,000 nm, and the pitch of the linear conductor 3 is in the range of 40-1,200 nm. COPYRIGHT: (C)2011,JPO&INPIT |
