Patent ID: 8647517
Filing Date: 2014-02-11
Classification: G11B,H05K

Abstract:
1. A producing method of a suspension board with circuit, the producing method comprising: simultaneously forming a conductive pattern and a mark, wherein the conductive pattern is formed on an insulating layer which in turn is formed on a metal supporting board, and the conductive pattern has a terminal portion for connecting to an electronic component, and wherein the mark is formed on at least one of the metal supporting board or the insulating layer, and the mark has an opening for forming a reference hole for mounting the electronic component; and forming the reference hole by etching at least one of the metal supporting board, which is disposed in the opening of the mark, or both the insulating layer and the metal supporting board each disposed in the opening of the mark, such that the reference hole is formed in the suspension board with circuit at the same position as that of the opening of the mark when the suspension board with circuit is viewed in a plan view, so that the reference hole is vertically aligned with the opening of the mark.