Patent ID: 7495178
Filing Date: 2009-02-24
Classification: H05K

Abstract:
1. A suspension board with circuit, comprising: a metal supporting board; an insulating layer formed on the metal supporting board; a conductive pattern formed on the insulating layer and including a terminal portion for connecting to an external terminal; a metal plating layer formed on a surface of the terminal portion; and an antistatic barrier layer formed on the conductive pattern, wherein the antistatic barrier layer includes a metal thin film and a semiconductive layer; wherein the metal thin film is formed continuously on upper and side surfaces of the conductive pattern except the terminal portion; wherein the semiconductive layer is formed continuously on upper and side surfaces of the metal thin film, and upper and side surfaces of the insulating layer exposed from the metal thin film; wherein the semiconductive layer comprises at least one end facing the terminal portion and at least the other end in contact with the metal supporting board; and wherein the one end of the semiconductive layer is electrically connected to the conductive pattern via the metal plating layer and the metal thin film, and the other end of the semiconductive layer is electrically connected to the metal supporting board.