Method of producing a suspension board with circuit

摘要

A suspension board with circuit includes a metal supporting board, an insulating layer formed on the metal supporting board, and a conductive pattern formed on the insulating layer and having a terminal portion connected to connecting terminals of a magnetic head mounted on a slider. A slider mounting region where the slider is disposed is defined, and a plurality of the terminal portions are spaced apart from each other in the slider mounting region, and in the metal supporting board, an opening which opens so as to expose the insulating layer where the terminal portions are disposed is formed at the slider mounting region.

主权项

1. A method of producing a suspension board with circuit comprising the steps of:
laminating a metal supporting board, an insulating layer formed on the metal supporting board, and a conductive pattern formed on the insulating layer and having a terminal portion connected to a connecting terminal of a magnetic head mounted on a slider; and etching the metal supporting board to form an opening so as to expose an under surface of the insulating layer to an extent that includes a position where the terminal portion is disposed when the opening is projected in a thickness direction of the suspension board with circuit, with the terminal portion being disposed at a slider mounting region where the slider is disposed, wherein the under surface of the insulating layer is exposed over an entire area of the opening.